The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms

Abstract

The Lomb-Scargle periodogram is a common tool in the frequency analysis of unequally spaced data equivalent to least-squares fitting of sine waves. We give an analytic solution for the generalisation to a full sine wave fit, including an offset and weights (${\chi }^2$ fitting). Compared to the Lomb-Scargle periodogram, the generalisation is superior as it provides more accurate frequencies, is less susceptible to aliasing, and gives a much better determination of the spectral intensity. Only a few modifications are required for the computation and the computational effort is similar. Our approach brings together several related methods that can be found in the literature, viz. the date-compensated discrete Fourier transform, the floating-mean periodogram, and the "spectral significance" estimator used in the SigSpec program, for which we point out some equivalences. Furthermore, we present an algorithm that implements this generalisation for the evaluation of the Keplerian periodogram that searches for the period of the best-fitting Keplerian orbit to radial velocity data. The systematic and non-random algorithm is capable of detecting eccentric orbits, which is demonstrated by two examples and can be a useful tool in searches for the orbital periods of exoplanets.

arXiv comment8 pages, 6 figures, 1 table, accepted by A&A

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• Discovery of a Candidate Binary Supermassive Black Hole in a Periodic Quasar from Circumbinary Accretion Variability
• Outbursts and Disk Variability in Be Stars
• The rotation period distribution of the rich Pleiades-age Southern open cluster NGC 2516. Existence of a representative zero-age main sequence distribution
• The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy
• The GAPS Programme at TNG XXVII. Reassessment of a young planetary system with HARPS-N: is the hot Jupiter V830 Tau b really there?
• Stellar signal components seen in HARPS and HARPS-N solar radial velocities
• How do starspots influence the transit timing variations of exoplanets? Simulations of individual and consecutive transits
• TOI-1759 b: a transiting sub-Neptune around a low mass star characterized with SPIRou and TESS
• Short-term variability and mass loss in Be stars II. Physical taxonomy of photometric variability observed by the Kepler spacecraft
• Extending Optical Flare Models to the UV: Results from Comparing of TESS and GALEX Flare Observations For M Dwarfs
• Understanding stellar activity-induced radial velocity jitter using simultaneous K2 photometry and HARPS RV measurements
• K2-290: a warm Jupiter and a mini-Neptune in a triple-star system
• The SPIRou Legacy Survey Rotation period of quiet M dwarfs from circular polarization in near-infrared spectral lines: I. The SPIRou APERO analysis
• A super-massive Neptune-sized planet
• The CARMENES search for exoplanets around M dwarfs: The warm super-Earths in twin orbits around the mid-type M dwarfs Ross 1020 (GJ 3779) and LP 819-052 (GJ 1265)
• Precise transit and radial-velocity characterization of a resonant pair: a warm Jupiter TOI-216c and eccentric warm Neptune TOI-216b
• A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
• Quasi-Periodic Oscillations in the long term radio light curves of the blazar AO 0235+164
• Mass and density of the transiting hot and rocky super-Earth LHS 1478 b (TOI-1640 b)
• The Peculiar Precursor of a Gamma-Ray Burst from a Binary Merger Involving a Magnetar
• A PSF-based approach to Kepler/K2 data - III. Search for exoplanets and variable stars within the open cluster M 67 (NGC 2682)
• Cloud Atlas: Discovery of Rotational Spectral Modulations in a Low-mass, L-type Brown Dwarf Companion to a Star
• The CARMENES search for exoplanets around M dwarfs: Stable radial-velocity variations at the rotation period of AD~Leonis -- A test case study of current limitations to treating stellar activity
• Characterization of the K2-38 planetary system. Unraveling one of the densest planets known to date
• Multi-band high resolution spectroscopy rules out the hot Jupiter BD+20 1790b - First data from the GIARPS Commissioning
• Inflection point in the power spectrum of stellar brightness variations. I. The model
• A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)
• The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- III. Exploring the properties of young associations through their variables, dippers, and candidate exoplanets
• Detecting non-sinusoidal periodicities in observational data: the von Mises periodogram for variable stars and exoplanetary transits
• The CARMENES search for exoplanets around M dwarfs: Benchmarking the impact of activity in high-precision radial velocity measurements
• TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet
• Characterisation of stellar activity of M dwarfs. I. Long-timescale variability in a large sample and detection of new cycles
• The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844
• The GROUSE project III: Ks-band observations of the thermal emission from WASP-33b
• Gaia Data Release 3. Rotational modulation and patterns of colour variations in solar-like variables
• Large Binocular Telescope view of the atmosphere of GJ1214b
• Robust period estimation using mutual information for multi-band light curves in the synoptic survey era
• A Near-infrared RR Lyrae census along the southern Galactic plane: the Milky Way's stellar fossil brought to light
• Testing the accuracy of the ionospheric Faraday rotation corrections through LOFAR observations of bright northern pulsars
• Qatar-1: indications for possible transit timing variations
• A method to discriminate solar and antisolar differential rotation in high-precision light curves
• Sun-like stars produce superflares roughly once per century
• A pair of warm giant planets near the 2:1 mean motion resonance around the K-dwarf star TOI-2202
• Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days
• First long-term activity study of AU Microscopii: a possible chromospheric cycle
• A color-period diagram for the open cluster M 48 (NGC 2548), and its rotational age
• HADES RV Programme with HARPS-N at TNG: V. A super-Earth on the inner edge of the habitable zone of the nearby M-dwarf GJ 625
• LHS 1815b: The First Thick-Disk Planet Detected By TESS
• HATS-25b through HATS-30b: A Half-dozen New Inflated Transiting Hot Jupiters from the HATSouth Survey
• Analysis of physical processes in eruptive YSOs with near infrared spectra and multi-wavelength light curves
• Spin-Orbit Misalignments of Three Jovian Planets via Doppler Tomography
• TOI-5005 b: A super-Neptune in the savanna near the ridge
• Gliese 49: Activity evolution and detection of a super-Earth
• Gaia Data Release 3: Ellipsoidal Variables with Possible Black-Hole or Neutron Star secondaries
• Proxima Centauri reloaded: Unravelling the stellar noise in radial velocities
• Gyrochronological dating of the stellar moving group Group X
• The Pan-Pacific Planet Search VI: Giant planets orbiting HD 86950 and HD 222076
• The Period-Luminosity Relations of Red Supergiants in M33 and M31
• Into the Darkness: Classical and Type II Cepheids in the Zona Galactica Incognita
• No evidence for activity correlations in the radial velocities of Kapteyn's star
• HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone
• The CARMENES search for exoplanets around M dwarfs, Wolf 1069 b: Earth-mass planet in the habitable zone of a nearby, very low-mass star
• New Limit on Axion-Like Dark Matter using Cold Neutrons
• 37 New Validated Planets in Overlapping K2 Campaigns
• The Pan-Pacific Planet Search. VIII. Complete results and the occurrence rate of planets around low-luminosity giants
• Time-resolved photometry of the young dipper RX J1604.3-2130A: Unveiling the structure and mass transport through the innermost disk
• The mass of planet GJ676A b from ground-based astrometry: A planetary system with two mature gas giants suitable for direct imaging
• GW Ori: Inner disk readjustments in a triple system
• Pursuing the planet-debris disk connection: Analysis of upper limits from the Anglo-Australian Planet Search
• Precise radial velocities of giant stars. XII. Evidence against the proposed planet Aldebaran b
• A dynamically discovered and characterized non-accreting neutron star -- M dwarf binary candidate
• A consistent analysis of three years of ground- and space-based photometry of TrES-2
• Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713$+$0747 on gravitational waves produced by super-massive black-hole binaries
• Detectability of quasi-circular co-orbital planets. Application to the radial velocity technique
• Detection of the lowest mass ratio contact binary in the universe: TYC 3801-1529-1
• Frequency of Close Companions among Kepler Planets - a TTV study
• An Extreme Amplitude, Massive Heartbeat System in the LMC Characterized Using ASAS-SN and TESS
• A temperature inversion in WASP-33b? Large Binocular Telescope occultation data confirm significant thermal flux at short wavelengths
• The 2014-2017 outburst of the young star ASASSN-13db: A time-resolved picture of a very low-mass star between EXors and FUors
• TASTE. III. A homogeneous study of transit time variations in WASP-3b
• Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature Versus Flare Activity
• Efficient scheduling of astronomical observations. Application to the CARMENES radial-velocity survey
• The test case of HD26965: difficulties disentangling weak Doppler signals from stellar activity
• Multi-wavelength variability of the young solar analog iota Hor. X-ray cycle, star spots, flares, and UV emission
• Gaia Data Release 3: The Gaia Andromeda Photometric Survey
• The CARMENES search for exoplanets around M dwarfs: Two Saturn-mass planets orbiting active stars
• EPIC247098361b: a transiting warm Saturn on an eccentric $P=11.2$ days orbit around a $V=9.9$ star
• TOI-132 b: A short-period planet in the Neptune desert transiting a $V=11.3$ G-type star
• Kepler Object of Interest Network II. Photodynamical modelling of Kepler-9 over 8 years of transit observations
• Automatic classification of time-variable X-ray sources
• Estimating the p-mode frequencies of the solar twin 18 Sco
• The HARPS search for southern extra-solar planets. XXXIX. HD175607 b, the most metal-poor G dwarf with an orbiting sub-Neptune
• The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18
• The first super-Earth Detection from the High Cadence and High Radial Velocity Precision Dharma Planet Survey
• The CARMENES search for exoplanets around M dwarfs. A long-period planet around GJ 1151 measured with CARMENES and HARPS-N data
• The ZTF Source Classification Project: II. Periodicity and variability processing metrics
• Multiple periods in the variability of the supermassive black hole binary candidate quasar PG1302-102?
• The SOPHIE search for northern extrasolar planets VIII. Follow-up of ELODIE candidates: long-period brown-dwarf companions
• TOI-1468: A system of two transiting planets, a super-Earth and a mini-Neptune, on opposite sides of the radius valley
• Testing whether a signal is strictly periodic. Application to disentangling planets and stellar activity in radial velocities
• An ultra-short period rocky super-Earth orbiting the G2-star HD 80653
• Multiwavelength variability study and search for periodicity of PKS 1510-089
• Observations of the WASP-2 System by the APOSTLE Program
• Disentangling 2:1 resonant radial velocity orbits from eccentric ones and a case study for HD 27894
• Long Period Variables in the Large Magellanic Cloud from the EROS-2 survey
• Monitoring the young planet host V1298 Tau with SPIRou: planetary system and evolving large-scale magnetic field
• TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
• Red noise and pulsations in evolved massive stars
• Chemical abundances of fast-rotating massive stars. I. Description of the methods and individual results
• An Updated Catalog of 4680 Northern Eclipsing Binaries with Algol-Type light curve morphology in the Catalina Sky Surveys
• The HARPS search for southern extra-solar planets XLV. Two Neptune mass planets orbiting HD 13808: a study of stellar activity modelling's impact on planet detection
• The Solar Twin Planet Search II. A Jupiter twin around a solar twin
• Stellar Rotation and Structure of the $\alpha$ Persei Complex: When Does Gyrochronology Start to Work?
• A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals
• A comparative study of four significance measures for periodicity detection in astronomical surveys
• TOI-1695 b: A Water World Orbiting an Early M Dwarf in the Planet Radius Valley
• Observation of Two New L4 Neptune Trojans in the Dark Energy Survey Supernova Fields
• A sub-Earth-mass planet orbiting Barnard's star
• A study of periodograms standardized using training data sets and application to exoplanet detection
• Establishing the Galactic Centre Distance Using VVV Bulge RR Lyrae Variables
• An active asteroid belt causing the UX Ori phenomenon in RZ Psc
• HATS-54b-HATS-58Ab: five new transiting hot Jupiters including one with a possible temperate companion
• Unevenly-sampled signals: a general formalism of the Lomb-Scargle periodogram
• A transiting, temperate mini-Neptune orbiting the M dwarf TOI-1759 unveiled by TESS
• The asymptotic evolution of the stellar merger V1309 Sco: a Blue Straggler in the making?
• A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system
• A super-Earth orbiting the nearby M-dwarf GJ 536
• A multi-wavelength investigation of candidate milli-second pulsars in unassociated $\gamma$-ray sources
• Radial velocity variations in the young eruptive star EX Lup
• Detection and Doppler monitoring of EPIC 246471491, a system of four transiting planets smaller than Neptune
• GJ357: A low-mass planetary system uncovered by precision radial-velocities and dynamical simulations
• Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy
• Star-disk interactions in multi-band photometric monitoring of the classical T Tauri star GI Tau
• TESS lightcurves of gamma-Cas stars
• Characterization of Near-Earth Asteroids using KMTNet-SAAO
• Mira variables in the Milky Way's nuclear stellar disc: discovery and classification
• Gaia Data Release 3: spectroscopic binary-star orbital solutions. The SB1 processing chain
• Mass determination of the 1:3:5 near-resonant planets transiting GJ 9827 (K2-135)
• An irregular discrete time series model to identify residuals with autocorrelation in astronomical light curves
• TOI-3984 A b and TOI-5293 A b: two temperate gas giants transiting mid-M dwarfs in wide binary systems
• The Detection of Earth-mass Planets around Active Stars: The Mass of Kepler-78b
• CoRoT Data Reduction By Example
• Orbits and Masses in the multiple system LHS 1070
• Precise radial velocities of giant stars IX. HD 59686 Ab: a massive circumstellar planet orbiting a giant star in a ~13.6 au eccentric binary system
• Three planets around HD 27894. A close-in pair with a 2:1 period ratio and an eccentric Jovian planet at 5.4 AU
• A SuperWASP search for additional transiting planets in 24 known systems
• Serendipitous discovery of RR Lyrae stars in the Leo V ultra-faint galaxy
• The CARMENES search for exoplanets around M dwarfs. Two terrestrial planets orbiting G 264-012 and one terrestrial planet orbiting Gl 393
• Transit least-squares survey -- II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2
• TOI-532b: The Habitable-zone Planet Finder confirms a Large Super Neptune in the Neptune Desert orbiting a metal-rich M dwarf host
• K2 reveals pulsed accretion driven by the 2 Myr old hot Jupiter CI Tau b
• Flares and rotation of M dwarfs with habitable zones accessible to TESS planet detections
• TOI-1728b: The Habitable-zone Planet Finder confirms a warm super Neptune orbiting an M dwarf host
• X-ray activity cycle on the active ultra-fast rotator AB Dor A? Implication of correlated coronal and photometric variability
• TOI-5678 b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS
• Studying bright variable stars with the Multi-site All-Sky CAmeRA (MASCARA)
• The phase curve and the geometric albedo of WASP-43b measured with CHEOPS, TESS and HST WFC3/UVIS
• The Magellan/PFS Exoplanet Search: A 55-day period dense Neptune transiting the bright ($V=8.6$) star HD 95338
• Long-term stellar activity variations and their effect on radial-velocity measurements
• Precise Dynamical Masses of Epsilon Indi Ba and Bb: Evidence of Slowed Cooling at the L/T Transition
• Orbital and spectral analysis of the benchmark brown dwarf HD 4747B
• Measuring precise radial velocities and cross-correlation function line-profile variations using a Skew Normal density
• Effect of metallicity on the detectability of rotational periods in solar-like stars
• Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO
• The spectral impact of magnetic activity on disk-integrated HARPS-N solar observations: exploring new activity indicators
• The OmegaWhite Survey for short period variable stars II: An overview of results from the first four years
• Searching For Transiting Planets Around Halo Stars. II. Constraining the Occurrence Rate of Hot Jupiters
• Discovery and mass measurement of the hot, transiting, Earth-sized planet GJ 3929 b
• A Radio Quasi-periodic Oscillation of 176 day in the Radio-loud Narrow-line Seyfert 1 Galaxy J0849+5108
• An ablating super-Earth in an eccentric binary from the Dispersed Matter Planet Project
• Variable star classification across the Galactic bulge and disc with the VISTA Variables in the Vía Láctea survey
• HADES RV program with HARPS-N at TNG. IX. A super-Earth around the M dwarf Gl686
• Three long period transiting giant planets from TESS
• The Great Flare of 2021 November 19 on AD Leo. Simultaneous XMM-Newton and TESS observations
• The CARMENES search for exoplanets around M dwarfs. Dynamical characterization of the multiple planet system GJ 1148 and prospects of habitable exomoons around GJ 1148 b
• Variability at the Edge: Optical Near/IR Rapid Cadence Monitoring of Newly Outbursting FU Orionis Object HBC 722
• A Radial Velocity Study of the Planetary System of Pi Mensae: Improved Planet Parameters for PI Mensae c and a Third Planet on a 125-d Orbit
• SOPHIE velocimetry of Kepler transit candidates XVIII. Radial velocity confirmation, absolute masses and radii, and origin of the Kepler-419 multiplanetary system
• The Pan-Pacific Planet Search III: Five companions orbiting giant stars
• Confirmation of an He I evaporating atmosphere around the 650-Myr-old sub-Neptune HD235088 b (TOI-1430 b) with CARMENES
• A Gaussian Process Regression Reveals No Evidence for Planets Orbiting Kapteyn's Star
• A close-in giant planet escapes engulfment by its star
• The TOI-763 system: sub-Neptunes orbiting a Sun-like star
• Detection of a quasi-periodic oscillation in the optical light curve of the remarkable blazar AO 0235+164
• TOI-2196 b: Rare planet in the hot Neptune desert transiting a G-type star
• HST spectrum and timing of the ultra-compact X-ray binary candidate 47 Tuc X9
• Probing Transit Timing Variation and its Possible Origin with Twelve New Transits of TrES-3b
• An eccentric Brown Dwarf eclipsing an M dwarf
• The Orbital Architecture of Qatar-6: A Fully Aligned 3-Body System?
• The GAPS Programme at TNG XLII. A characterisation study of the multi-planet system around the 400 Myr-old star HD 63433 (TOI-1726)
• Gliese 12 b: A temperate Earth-sized planet at 12 pc ideal for atmospheric transmission spectroscopy
• Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095
• Searching for dark-matter waves with PPTA and QUIJOTE pulsar polarimetry
• The Habitable-zone Planet Finder Detects a Terrestrial-mass Planet Candidate Closely Orbiting Gliese 1151: The Likely Source of Coherent Low-frequency Radio Emission from an Inactive Star
• Searching for Quasi-Periodic Modulations in $\gamma$-ray Active Galactic Nuclei
• The High Cadence Transient Survey (HITS): Compilation and characterization of light-curve catalogs
• Detection and characterization of an ultra-dense sub-Neptune planet orbiting the Sun-like star HD 119130
• The CARMENES search for exoplanets around M dwarfs - The enigmatic planetary system GJ 4276: One eccentric planet or two planets in a 2:1 resonance?
• Two Jovian planets around the giant star HD202696. A growing population of packed massive planetary pairs around massive stars?
• K2-139 b: a low-mass warm Jupiter on a 29-day orbit transiting an active K0 V star
• Mira Variable Stars From LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection
• Period estimation for sparsely-sampled quasi-periodic light curves applied to Miras
• M4 Core Project with HST - III. Search for variable stars in the primary field
• Regression analysis with missing data and unknown colored noise: application to the MICROSCOPE space mission
• Keplerian periodogram for Doppler exoplanets detection: optimized computation and analytic significance thresholds
• An Apodized Kepler Periodogram for Separating Planetary and Stellar Activity Signals
• The T Tauri star V410 Tau in the eyes of SPIRou and TESS
• TESS discovery of a sub-Neptune orbiting a mid-M dwarf TOI-2136
• The Detection of Transiting Exoplanets by Gaia
• Suzaku X-Ray Study of an Anomalous Source XSS J12270-4859
• Optical and near-infrared stellar activity characterization of the early M dwarf Gl~205 with SOPHIE and SPIRou
• Planets around the evolved stars 24 Booties and $\gamma$ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR
• Probable Dormant Neutron Star in a Short-Period Binary System
• Radial Velocity Survey for Planets around Young stars (RVSPY) A transiting warm super-Jovian planet around HD 114082, a young star with a debris disk
• Three planets transiting the evolved star EPIC 249893012: a hot 8.8-M${}_{\oplus }$ super-Earth and two warm 14.7 and 10.2-M${}_{\oplus }$ sub-Neptunes
• The space weather around the exoplanet GJ 436b
• The homogeneous characterisation of Ariel host stars
• $\text{Wapiti}$: a data-driven approach to correct for systematics in RV data -- Application to SPIRou data of the planet-hosting M dwarf GJ 251
• Mitigating stellar activity jitter with different line lists for least-squares deconvolution: analysis of a parametric and a randomised line selection
• Large amplitude periodic outbursts and long period variables in the VVV VIRAC2-$\beta$ database
• Rotational modulation of spectroscopic Zeeman signatures in low-mass stars
• Investigating light curve modulation via kernel smoothing. II. New additional modes in single-mode OGLE classical Cepheids
• Investigating Taxonomic Diversity within Asteroid Families through ATLAS Dual-Band Photometry
• 3D magneto-hydrodynamical simulations of stellar convective noise for improved exoplanet detection. I. Case of regularly sampled radial velocity observations
• TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to have Originated from High-Eccentricity Migration
• Gaia Data Release 2. Short-timescale variability processing and analysis
• HATS-22b, HATS-23b and HATS-24b: Three new transiting Super-Jupiters from the HATSouth Project
• ESPRESSO Mass determination of TOI-263b: An extreme inhabitant of the brown dwarf desert
• Magnitude-squared coherence: A powerful tool for disentangling Doppler planet discoveries from stellar activity
• Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometry
• A search for evidence of solar rotation in Super-Kamiokande solar neutrino dataset
• A Pair of Giant Planets around the Evolved Intermediate-Mass Star HD 47366: Multiple Circular Orbits or a Mutually Retrograde Configuration
• On The Feasibility of Exomoon Detection Via Exoplanet Phase Curve Spectral Contrast
• TOI-1268b: the youngest, hot, Saturn-mass transiting exoplanet
• Magnetic field and chromospheric activity evolution of HD75332: a rapid magnetic cycle in an F star without a hot Jupiter
• New Insights into Time Series Analysis - I - Correlated observations
• Dependence of NLRs sizes on [OIII] luminosity in low redshift AGN with double-peaked broad Balmer emission lines
• New type II Cepheids from VVV data towards the Galactic center
• The CARMENES search for exoplanets around M dwarfs. Rotational variation in activity indicators of Ross 318, YZ CMi, TYC 3529-1437-1, and EV Lac
• HADES RV Programme with HARPS-N at TNG VI. GJ 3942 b behind dominant activity signals
• The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting HD 79211 (GJ 338 B)
• Photometric variability of the LAMOST sample of magnetic chemically peculiar stars as seen by TESS
• Discrete-time autoregressive model for unequally spaced time-series observations
• The bright blue side of the night sky: Spectroscopic survey of bright and hot (pre-) white dwarfs
• The gamma-ray and Optical Variability Analysis of the BL Lac Object 3FGL J0449.4-4350
• TOI-4010: A System of Three Large Short-Period Planets With a Massive Long-Period Companion
• A dense $0.1{\mathbf{M}}_{\odot }$ star in a 51-minute orbital period eclipsing binary
• Spectral Energy Distributions of Candidate Periodically-Variable Quasars: Testing the Binary Black Hole Hypothesis
• The Spin-Orbit Misalignment of TOI-1842b: The First Measurement of the Rossiter-McLaughlin Effect for a Warm Sub-Saturn around a Massive Star
• Differential rotation of the solar corona: A new data-adaptive multiwavelength approach
• Improved signal detection algorithms for unevenly sampled data. Six signals in the radial velocity data for GJ876
• Testing connections between exo-atmospheres and their host stars. GEMINI-N/GMOS ground-based transmission spectrum of Qatar-1b
• The CARMENES search for exoplanets around M dwarfs. Variability on long timescales as seen in chromospheric indicators
• Discovery of Bright Galactic R Coronae Borealis and DY Persei Variables: Rare Gems Mined from ACVS
• Robust model comparison tests of DAMA/LIBRA annual modulation
• A Machine Learning approach for correcting radial velocities using physical observables
• Robust detection of quasi-periodic variability: A HAWKI mini survey of late T dwarfs
• The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one
• MOBSTER -- III. HD 62658: a magnetic Bp star in an eclipsing binary with a non-magnetic 'identical twin'
• A spectroscopic test of the rotational modulation origin of periodic \emph{Kepler} photometric variability of A-type stars
• WASP-14 b: Transit Timing analysis of 19 light curves
• Precession due to a close binary system: An alternative explanation for ν-Octantis?
• A 6.4yr optical quasi-periodic oscillations in SDSS J075217.84+193542.2: a new candidate for central binary black hole system
• Constraining the PG 1553+113 binary hypothesis: interpreting hints of a new, 22-year period
• GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot, low-density super-Earth
• HD 20329b: An ultra-short-period planet around a solar-type star found by TESS
• Compact Object Candidates with K/M-dwarf Companions from LAMOST Low-resolution Survey
• GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation
• A multi-epoch, multi-wavelength study of the classical FUor V1515 Cyg approaching quiescence
• The Unusual Apparition of Comet 252P/2000 G1 (LINEAR) and Comparison with Comet P/2016 BA14 (PanSTARRS)
• Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40
• The HD 93963 A transiting system: A 1.04d super-Earth and a 3.65 d sub-Neptune discovered by TESS and CHEOPS
• The OmegaWhite Survey for Short-Period Variable Stars VII: High amplitude, short period blue variables
• The Optical Orbital Light Curve of the Low-mass X-ray Binary V1408 Aquilae (= 4U 1957+115)
• TOI-1842b: A Transiting Warm Saturn Undergoing Re-Inflation around an Evolving Subgiant
• YETI observations of the young transiting planet candidate CVSO 30 b
• Stable accretion and episodic outflows in the young transition disk system GM Aurigae
• Mysterious, Variable, and Extremely Hot: White Dwarfs Showing Ultra-High Excitation Lines I. Photometric Variability
• Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
• HATS-47b, HATS-48Ab, HATS-49b and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs
• KELT-22Ab: A Massive Hot Jupiter Transiting a Near Solar Twin
• The VVV Infrared Variability Catalog (VIVA-I)
• Spectroscopic confirmation of high-amplitude eruptive YSOs and dipping giants from the VVV survey
• Measurement of the cosmic ray muon flux seasonal variation with the OPERA detector
• The effect of spots on the luminosity spread of the Pleiades
• Physical properties of near-Earth asteroids with a low delta-$v$: Survey of target candidates for the Hayabusa2 mission
• A Super-Earth Orbiting Near the Inner Edge of the Habitable Zone around the M4.5-dwarf Ross 508
• RVSPY -- Radial Velocity Survey for Planets around Young Stars. Target characterization and high-cadence survey
• HATS-39b, HATS-40b, HATS-41b, and HATS-42b: Three Inflated Hot Jupiters and a Super-Jupiter Transiting F Stars
• A 31.3 day Transient Quasiperiodic Oscillation in Gamma-ray Emission from Blazar S5 0716+714
• A low-mass eclipsing binary within the fully convective zone from the NGTS
• Bow-shocks, nova shells, disc winds and tilted discs: The Nova-Like V341 Ara Has It All
• Detection of Periodicity Based on Independence Tests - III. Phase Distance Correlation Periodogram
• An Automated tool to detect variable sources in the Vista Variables in the V\'ıa Láctea Survey. The VVV Variables (V${}^4$) catalog of tiles d001 and d002
• Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars. I. The case of HD101412
• New variable stars discovered in the fields of three Galactic open clusters using the VVV Survey
• Testing the Spectroscopic Extraction of Suppression of Convective Blueshift
• Time evolution of magnetic activity cycles in young suns: The curious case of kappa Ceti
• Signatures of rotating binaries in micro-lensing experiments
• Gamma-ray Eclipses and Orbital Modulation Transitions in the Candidate Redback 4FGL J1702.7-5655
• Complete X-ray census of Mdwarfs in the solar Neighborhood I. GJ 745 AB: Coronal-hole Stars in the 10 pc Sample
• The CARMENES search for exoplanets around M dwarfs Detection of a mini-Neptune around LSPM J2116+0234 and refinement of orbital parameters of a super-Earth around GJ 686 (BD+18 3421)
• So close, so different: characterization of the K2-36 planetary system with HARPS-N
• HD 38858: a solar type star with a $\sim$10.8 yr activity cycle. Searching for Balmer and metallic line variations
• The HADES RV Programme with HARPS-N at TNG XI. GJ 685 b: a warm super-Earth around an active M dwarf
• An 11 Earth-Mass, Long-Period Sub-Neptune Orbiting a Sun-like Star
• Indications for transit timing variations in the exo-Neptune HAT-P-26b
• Optical Quasi-periodic Oscillations in the TESS light curves of three blazars
• V899 Mon: a peculiar eruptive young star close to the end of its outburst
• TOI-220 $b$: a warm sub-Neptune discovered by TESS
• Three super-Earths and a possible water world from TESS and ESPRESSO
• The HD 181433 Planetary System: Dynamics and a New Orbital Solution
• Sonneberg plate photometry for Boyajian's Star in two passbands
• Espresso observations of HE 0107$-$5240 and other CEMP-no stars with $[Fe/H]\le -4.5$
• A warm super-Neptune around the G-dwarf star TOI-1710 revealed with TESS, SOPHIE and HARPS-N
• HAT-TR-318-007: a double-lined M-dwarf binary with total secondary eclipses discovered by HATNet and observed by K2
• Modelling stellar activity with Gaussian process regression networks
• Symbiotic Stars in OGLE Data I. Large Magellanic Cloud Systems
• First orbital solution for the non-thermal emitter Cyg OB2 #9
• One-third of Sun-like stars are born with misaligned planet-forming disks
• Let there be more variability in two gamma Cas stars
• A massive hot Jupiter orbiting a metal-rich early-M star discovered in the TESS full frame images
• Characterisation of the Warm-Jupiter TOI-1130 system with CHEOPS and photo-dynamical approach
• Short-term variability and mass loss in Be stars VI. Frequency groups in $\gamma$ Cas detected by TESS
• Evidence for a milliparsec-separation Supermassive Binary Black Hole with quasar microlensing
• Transit Origami: A Method to Coherently Fold Exomoon Transits in Time Series Photometry
• Polarimetric Properties of the Near--Sun Asteroid (155140) 2005 UD in Comparison with Other Asteroids and Meteoritic Samples
• The VVV survey: Long-period variable stars I. Photometric catalog of ten VVV/OGLE tiles
• HATS-37Ab and HATS-38b: Two Transiting Hot Neptunes in the Desert
• The GAPS Programme with HARPS-N at TNG XVIII. Two new giant planets around the metal-poor stars HD 220197 and HD 233832
• On the Rotation of the Solar Chromosphere
• Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun
• TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star
• Hot planets around cool stars -- two short-period mini-Neptunes transiting the late K-dwarf TOI-1260
• Characterization of starspots on a young M-dwarf K2-25: multi-band observations of stellar photometric variability and planetary transits
• Rotation of solar analogs cross-matching Kepler and Gaia DR2
• The origin of R CrA variability: A complex triple system hosting a disk
• NuSTAR rules out a cyclotron line in the accreting magnetar candidate 4U2206+54
• The active weak-line T Tauri star LkCa 4 observed with SPIRou and TESS
• Citizen ASAS-SN Data Release I: Variable Star Classification Using Citizen Science
• Correlated X-ray and optical variability in the O-type supergiant zeta Puppis
• TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf
• Reanalysis of the FEROS observations of HIP 11952
• On the Use of Field RR Lyrae as Galactic Probes. VI. Mixed mode RR Lyrae variables in Fornax and in nearby dwarf galaxies
• The GAPS programme at TNG XLIV. Projected rotational velocities of 273 exoplanet-host stars observed with HARPS-N
• GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion
• Search for planets around stars with wide brown dwarfs
• A CHEOPS-enhanced view of the HD3167 system
• Asteroid Photometry from the Transiting Exoplanet Survey Satellite: A Pilot Study
• Glimpses of stellar surfaces. I. Spot evolution and differential rotation of the planet host star Kepler-210
• A decade of radial-velocity monitoring of Vega and new limits on the presence of planets
• Photometric rotation periods for 107 M dwarfs from the APACHE survey
• The rotation period distributions of 4--10 Myr T Tauri stars in Orion OB1: New constraints on pre-main-sequence angular momentum evolution
• Biases in retrieving planetary signals in the presence of quasi-periodic stellar activity
• The HARPS search for southern extra-solar planets XL. Searching for Neptunes around metal-poor stars
• Photometric identification of the periods of the first candidate extragalactic magnetic massive stars
• Investigating Light Curve Modulation via Kernel Smoothing. I. Application to 53 fundamental mode and first-overtone Cepheids in the LMC
• Wolf 503 b: Characterization of a Sub-Neptune Orbiting a Metal-Poor K Dwarf
• Variation in solar differential rotation and activity in the period 1964-2016 determined by the Kanzelhöhe data set
• Constraining the Shape Distribution of Near Earth Objects from Partial Lightcurves
• Keeping up with the cool stars: One TESS year in the life of AB Doradus
• TOI-4438 b: a transiting mini-Neptune amenable to atmospheric characterization
• A 3.8yr optical quasi-periodic oscillations in blue quasar SDSS J132144+033055 through combined light curves from CSS and ZTF
• The RoPES project with HARPS and HARPS-N. I. A system of super-Earths orbiting the moderately active K-dwarf HD 176986
• The Surface Magnetic Activity of the Weak-Line T Tauri Stars TWA 7 and TWA 25
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey: III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-Transit Jupiter Orbiting TOI-2010
• A dense mini-Neptune orbiting the bright young star HD 18599
• Regular Radial Velocity Variations in Nine G- and K-type Giant Stars: Eight Planets and One Planet Candidate
• HATS-50b through HATS-53b: four transiting hot Jupiters orbiting G-type stars discovered by the HATSouth survey
• A multi-planetary system orbiting the early-M dwarf TOI-1238
• Long-Term Photometry of IC 348 with the YETI Network
• The M4 Core Project with HST --- I. Overview and First-Epoch
• Hyades Member K2-136c: The Smallest Planet in an Open Cluster with a Precisely Measured Mass
• EPIC 246851721 b: A Tropical Jupiter Transiting a Rapidly Rotating Star in a Well-Aligned Orbit
• A High-Eccentricity Warm Jupiter Orbiting TOI-4127
• Confirmation of the Long-Period Planet Orbiting Gliese 411 and the Detection of a New Planet Candidate
• SRGA J124404.1-632232/SRGU J124403.8-632231: a new X-ray pulsar discovered in the all-sky survey by SRG
• Looking into the cradle of the grave: J22564-5910, a young post-merger hot subdwarf?
• Projected Rotational Velocities and Fundamental Properties of Low-Mass Pre-Main Sequence Stars in the Taurus-Auriga Star Forming Region
• Difference image photometry with bright variable backgrounds
• Evidence of New Magnetic Transitions in Late-Type Dwarfs from Gaia DR2
• Using Optical Spectroscopy to Map the Geometry and Structure of the Irradiated Accretion Discs in Low-mass X-ray Binaries: The Pilot-Study of MAXI J0637$-$430
• A BCool survey of stellar magnetic cycles
• USuRPER: Unit-Sphere Representation PERiodogram for full spectra
• Detecting the periodicity of highly irregularly sampled light-curves with Gaussian processes: the case of SDSSJ025214.67-002813.7
• Revisiting the multi-planetary system of the nearby star HD 20794: Confirmation of a low-mass planet in the habitable zone of a nearby G-dwarf
• Stellar masks and bisector's shape for M-type stars observed in the GAPS Programme with HARPS-N at TNG
• Long-term Stellar Variability in the Galactic Centre Region
• A super-Earth on a close-in orbit around the M1V star GJ 740. A HADES and CARMENES collaboration
• TESS and CHEOPS Discover Two Warm Sub-Neptunes Transiting the Bright K-dwarf HD 15906
• Transit analysis of the CoRoT-5, CoRoT-8, CoRoT-12, CoRoT-18, CoRoT-20, and CoRoT-27 systems with combined ground- and space-based photometry
• Validation and atmospheric exploration of the sub-Neptune TOI-2136b around a nearby M3 dwarf
• Color Variability of HBC 722 in the Post-Outburst Phases
• A likely magnetic activity cycle for the exoplanet host M dwarf GJ 3512
• TOI-837b is a Young Saturn-sized Exoplanet with a Massive 70 $M_{\oplus }$ Core
• EXPRES. II. Searching for Planets Around Active Stars: A Case Study of HD 101501
• A detailed understanding of the rotation-activity relationship using the 300 Myr old open cluster NGC 3532
• Near-Infrared Search for Fundamental-mode RR Lyrae Stars Toward the Inner Bulge by Deep Learning
• Revisiting the Transit Timing Variations in the TrES-3 and Qatar-1 systems with TESS data
• New insights on the massive interacting binary UU Cassiopeiae
• Sectoral r modes and periodic RV variations of Sun-like stars
• Ross 128 -- GL 447A possible activity cycle for a slow-rotating fully-convective star
• The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits
• Radial velocity homogeneous analysis of M dwarfs observed with HARPS I. Exoplanet detection and candidates
• The Surface Magnetic Activity of the Weak-Line T Tauri Stars TWA 9A and V1095 Sco
• Magnetic chemically peculiar stars investigated by the Solar Mass Ejection Imager
• TOI-5344 b: A Saturn-like planet orbiting a super-Solar metallicity M0 dwarf
• Carbon-enhanced stars with short orbital and spin periods
• Photometric observations of flares on AD Leo from GWAC-F30 and TESS
• HAT-P-58b -- HAT-P-64b: Seven Planets Transiting Bright Stars
• Dynamical masses of two young transiting sub-Neptunes orbiting HD 63433
• The high-energy radiation environment of the habitable-zone super-Earth LHS 1140b
• Correlation between activity indicators: H$\alpha$ and Ca II lines in M-dwarf stars
• Planetary companions orbiting the M dwarfs GJ 724 and GJ 3988. A CARMENES and IRD collaboration
• The discovery of a planetary candidate around the evolved low-mass Kepler giant star HD 175370
• Far beyond the Sun: II. Probing the stellar magnetism of the young Sun ι Horologii from the photosphere to its corona
• HADES RV Programme with HARPS-N at TNG XIII. A sub-Neptune around the M dwarf GJ 720 A
• A celestial matryoshka: Dynamical and spectroscopic analysis of the Albireo system
• Discovery of Nine Super Li-rich Unevolved Stars from the LAMOST Survey
• Searching for Quasi-periodic Oscillations in Active Galactic Nuclei of the Chandra Deep Field South
• Propagation effects in the FRB 20121102A spectra
• Discovery of a massive giant planet with extreme density around a sub-giant star TOI-4603
• Variations on a theme -- the puzzling behaviour of Schulte 12
• SDSS J154751.94+025550 with double-peaked broad Hβbut single-peaked broad Hα: a candidate for central binary black hole system?
• Radio emission in a nearby ultracool dwarf binary: a multi-frequency study
• Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS
• An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450
• New X-ray detections of known Wolf-Rayet stars
• A hot Mars-sized exoplanet transiting an M dwarf
• Diving into the planetary system of Proxima with NIRPS -- Breaking the metre per second barrier in the infrared
• VaTEST I: Validation of Sub-Saturn Exoplanet TOI-181b in Narrow Orbit from its Host Star
• TOI-1736 and TOI-2141: two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE
• Amplitude Modulation of Short-Timescale Hot Spot Variability
• Discovery of periodic dips in the brightest hard X-ray source of M31 with EXTraS
• Revisiting the cycle-rotation connection for late-type stars
• TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system
• Accounting for stellar activity signals in radial-velocity data by using Change Point Detection techniques
• The need for a public forecast of stellar activity to optimise exoplanet radial velocity detections & transmission spectroscopy
• Multi-wavelength temporal variability of the blazar PKS 1510-089
• Revisiting the HD 21749 Planetary System with Stellar Activity Modeling
• The mu Arae planetary system: Radial velocities and astrometry
• Detailed stellar activity analysis and modelling of GJ 832: Reassessment of the putative habitable zone planet GJ 832c
• The GAPS programme at TNG XXXIV. Activity-rotation, flux-flux relationships, and active region evolution through stellar age
• New Periodograms Separating Orbital Radial Velocities and Spectral Shape Variation
• Magnetic field topology, chemical spot distributions and photometric variability of the Ap star phi Draconis
• Wavelength Dependence of Activity-Induced Photometric Variations for Young Cool Stars in Hyades
• Are There Transit Timing Variations for the Exoplanet Qatar-1b ?
• Effects of flares on the habitable zones of M dwarfs accessible to TESS planet detections
• The Puzzling Story of Flare Inactive Ultra Fast Rotating M dwarfs. I. Exploring their Magnetic Fields
• Long period modulation of the classical T Tauri star CI Tau: evidence for an eccentric close-in massive planet at 0.17 au
• Non-Sinusoidal Transit Timing Variations for the Exoplanet HAT-P-12b
• The CARMENES search for exoplanets around M dwarfs. Line-by-line sensitivity to activity in M dwarfs
• BRITE photometry and STELLA spectroscopy of bright stars in Auriga: Rotation, pulsation, orbits, and eclipses
• Reading between the lines: Disk emission, wind, and accretion during the ZCMa NW outburst
• Estimating activity cycles with probabilistic methods I. Bayesian Generalised Lomb-Scargle Periodogram with Trend
• GCIRS 7, a pulsating M1 supergiant at the Galactic centre. Physical properties and age
• Planets around evolved intermediate-mass stars III. Planet candidates and long-term activity signals in six open clusters
• The CARMENES search for exoplanets around M dwarfs. Behaviour of the Paschen lines during flares and quiescence
• The CARMENES search for exoplanets around M dwarfs. Revisiting the GJ 581 multi-planetary system with new Doppler measurements from CARMENES, HARPS, and HIRES
• A review of planetary systems around HD 99492, HD 147379 and HD 190007 with HARPS-N
• A Search for Variable Stars in the Globular Cluster M4 with K2
• HR 10: A main-sequence binary with circumstellar envelopes around both components. Discovery and analysis
• The GAPS Programme at TNG -- XXIV. An eccentric Neptune-mass planet near the inner edge of the BD-11 4672 habitable zone
• Multiwavelength variability of the blazar AO 0235+164
• A close outer companion to the ultra-hot Jupiter TOI-2109 b?
• A rotational age for the open cluster NGC 2281
• The Transit Timing and Atmosphere of Hot Jupiter HAT-P-37b
• A Far-Infrared Observational Test of the Directional Dependence in Radiative Grain Alignment
• Searching for planetary signals in Doppler time series: a performance evaluation of tools for periodograms analysis
• Starspot induced effects in microlensing events with rotating source star
• A Catalog of Periodic Variables in Open Clusters M35 and NGC 2158
• New Insights into Time Series Analysis III - Setting constraints on period analysis
• Broadband X-ray Spectral Study of Ultra-luminous X-ray Source M81 X--6
• Meta-analysis of photometric and asteroseismic measurements of stellar rotation periods: the Lomb-Scargle periodogram, autocorrelation function, wavelet and rotational splitting analysis for 92 Kepler asteroseismic targets
• Multi-band characterization of the hot Jupiters: WASP-5b, WASP-44b and WASP-46b
• Variability in NGC 3201 giant stars and its impact on their spectroscopic [Fe/H] determination
• An Earth-sized Planet around an M5 Dwarf Star at 22 pc
• The variability patterns of the TeV blazar PG 1553+113 from a decade of MAGIC and multi-band observations
• Periodic X-ray sources in the Massive Globular Cluster 47 Tucanae: Evidence for Dynamically Formed Cataclysmic Variables
• Spot Model for Identifications of Periods in Asynchronous Polars
• Detection of Periodicity Based on Independence Tests - II. Improved Serial Independence Measure
• TOI-837 b: characterisation, formation and evolutionary history of an infant warm Saturn-mass planet
• The multi-planet system TOI-421 -- A warm Neptune and a super puffy mini-Neptune transiting a G9 V star in a visual binary
• A Study of the Magnetic Activity and Variability of GJ 436
• Ultralow-amplitude RR Lyrae Stars in M4
• The GAPS Programme at TNG. XXX: Characterization of the low-density gas giant HAT-P-67 b with GIARPS
• Planetary companions around the metal-poor star HIP 11952
• Characterisation of TOI-406 as showcase of the THIRSTEE program: A 2-planet system straddling the M-dwarf density gap
• A survey for variable young stars with small telescopes: IV -- Rotation Periods of YSOs in IC5070
• Aliasing in the Radial Velocities of YZ Ceti: An Ultra-Short Period for YZ Ceti c?
• Two sub-Neptunes around the M dwarf TOI-1470
• Exploring the short-term variability of H$\alpha$ and H$\beta$ emissions in a sample of M dwarfs
• The study on transiting systems HAT-P-13, HAT-P-16 and WASP-32 through combining ground-based and TESS photometry
• Long-Period High-Amplitude Red Variables in the KELT Survey
• Magnetic activity of the solar-like star HD 140538
• A candidate of binary black hole system in AGN with broad Balmer emission lines having quite different line widths
• Hard X-ray Emission Associated with White Dwarfs. IV. Signs of Accretion from Sub-stellar Companions
• HST astrometry of the closest Brown Dwarfs -- II. Improved parameters and constraints on a third body
• Extreme asteroids in the Pan-STARRS 1 Survey
• Identifying Exoplanets with Deep Learning. IV. Removing Stellar Activity Signals from Radial Velocity Measurements Using Neural Networks
• V4142 Sgr: a Double Periodic Variable with an accretor surrounded by the accretion-disk's atmosphere
• The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet's Perturbations
• S-ACF: A selective estimator for the autocorrelation function of irregularly sampled time series
• The GAPS programme at TNG LXIV: An inner eccentric sub-Neptune and an outer sub-Neptune-mass candidate around BD+00 444 (TOI-2443)
• TOI-5108 b and TOI 5786 b: Two transiting sub-Saturns detected and characterized with TESS, MaHPS and SOPHIE
• SOPHIE velocimetry of Kepler transit candidates. XIX. The transiting temperate giant planet KOI-3680b
• The magnetic field of the chemically peculiar star V352Peg
• A double-period oscillation signal in millimeter emission of the radio galaxy NGC 1275
• K2-280b -- a low density warm sub-Saturn around a mildly evolved star
• TOI-1696 and TOI-2136: Constraining the Masses of Two Mini-Neptunes with HPF
• Revisiting radio variability of the blazar 3C 454.3
• Photometric study of an Eclipsing Binary in Praesepe
• Long-term variations in the X-ray activity of HR 1099
• The GAPS programme at TNG. XLVI. Deep search for low-mass planets in late-dwarf systems hosting cold Jupiters
• The discovery of three hot Jupiters, NGTS-23b, 24b and 25b, and updated parameters for HATS-54b from the Next Generation Transit Survey
• Spectral characterization and differential rotation study of active CoRoT stars
• The inflated, eccentric warm Jupiter TOI-4914 b orbiting a metal-poor star, and the hot Jupiters TOI-2714 b and TOI-2981 b
• Discovery of a cold giant planet and mass measurement of a hot super-Earth in the multi-planetary system WASP-132
• The enigma of Li-rich giants and its relation with temporal variations observed in radial velocity and stellar activity signals
• A catalogue of candidate milli-parsec separation massive black hole binaries from long term optical photometric monitoring
• Multi-band, Multi-epoch Photometry of the Spot-crossing System TOI-3884: Refined System Geometry and Spot Properties
• Comparing the frequentist and Bayesian periodic signal detection: rates of statistical mistakes and sensitivity to priors
• New Galactic $\beta$ Lyrae-type Binaries Showing Superorbital Photometric Cycles
• K2-79b and K2-222b: Mass measurements of two small exoplanets with periods beyond 10 days that overlap with periodic magnetic activity signals
• Long photometric cycle and disk evolution in the $\beta$ Lyrae type binary OGLE-BLG-ECL-157529
• A study of the rapid rotator $\zeta$ Aql: differential surface rotation?
• Automated classification of eclipsing binary systems in the VVV Survey
• A multi-wavelength view of the multiple activity cycles of $\epsilon$~Eridani
• HATS-15 b and HATS-16 b: Two massive planets transiting old G dwarf stars
• APOSTLE: Longterm Transit Monitoring and Stability Analysis of XO-2b
• Analysis of the public HARPS/ESO spectroscopic archive -- Jupiter-like planets around HD 103891 and HD 105779
• The young binary HD 102077: Orbit, spectral type, kinematics, and moving group membership
• Discovery of an inflated hot Jupiter around a slightly evolved star TOI-1789
• Automatic detection technique for solar filament oscillations in GONG data
• Long-term Periodicities of Cataclysmic Variables with Synoptic Surveys
• DMPP-3: confirmation of short-period S-type planet(s) in a compact eccentric binary star system, and warnings about long-period RV planet detections
• TOI-733 b: a planet in the small-planet radius valley orbiting a Sun-like star
• Radii, masses, and transit-timing variations of the three-planet system orbiting the naked-eye star TOI-396
• viper: High-precision radial velocities from the optical to the infrared (Reaching 3 m/s in the K band of CRIRES+ with telluric modelling)
• Photometric activity cycles in fast-rotating stars: Revisiting the reality of stellar activity cycle branches
• Recovering variable stars in large surveys: EA${}_{\mathrm{up}}$ Algol-type class in the Catalina Survey
• KOBE-1: The first planetary system from the KOBE survey. Two planets likely residing in the sub-Neptune mass regime around a late K-dwarf
• An application of a solar-type dynamo model for Epsilon Eridani
• LASR-Guided Stellar Photometric Variability Subtraction: The Linear Algorithm For Significance Reduction
• Star-disk interactions in the strongly accreting T Tauri Star S CrA N
• In-depth characterization of the Kepler-10 three-planet system with HARPS-N radial velocities and Kepler transit timing variations
• Characterisation of magnetic activity of M dwarfs. Possible impact on the surface brightness
• Is the primary CoRoT target HD43587 under a Maunder minimum phase?
• Two neighbours of the ultra-short-period Earth-sized planet K2-157 b in the warm Neptunian savanna
• The Hot-Neptune Initiative (HONEI) I. Two hot sub-Neptunes on a close-in, eccentric orbit (TOI-5800 b) and a farther-out, circular orbit (TOI-5817 b)
• Orbit of the young very low-mass spectroscopic binary CHXR 74
• Precise characterisation of HD 15337 with CHEOPS: a laboratory for planet formation and evolution
• The Puzzling Story of Flare Inactive Ultra Fast Rotating M dwarfs. II. Searching for radial velocity variations
• Photometric-Metallicity and Distance Estimates for $\sim$70,000 RR Lyrae Stars from the Zwicky Transient Facility
• Transitions in magnetic behavior at the substellar boundary
• An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b
• Precise radial velocities of giant stars XV. Mysterious nearly periodic radial velocity variations in the eccentric binary $\epsilon$ Cygni
• H${}_{\alpha }$-activity and ages for stars in the SARG survey
• The CARMENES search for exoplanets around M dwarfs. A sub-Neptunian mass planet in the habitable zone of HN Lib
• ExoplANNET: A deep learning algorithm to detect and identify planetary signals in radial velocity data
• Mid-infrared time-domain study of recent dust production events in the extreme debris disc of TYC 4209-1322-1
• A transiting super-Earth close to the inner edge of the habitable zone of an M0 dwarf star
• Do Miras show the long secondary periods?
• The Rotation Period Distribution in the Young Open Cluster NGC 6709
• On the multiscale behaviour of stellar activity and rotation of the planet host Kepler-30
• The G 305 Star-forming Region: II. Irregular variable stars
• Detection of Periodicity Based on Independence Tests - IV. Phase Distance Correlation Periodogram for Two-Dimensional Astrometry
• HADES RV programme with HARPS-N at TNG XIV. A candidate super-Earth orbiting the M-dwarf GJ 9689 with a period close to half the stellar rotation period
• Spot and Facula Activity Variations of the Eccentric Detached Eclipsing Binary KIC 8098300 Based on the Time-series Orbital Solutions
• Searching for stellar cycles on low mass stars using TESS data
• Detecting Extragalactic Axion-like Dark Matter with Polarization Measurements of Fast Radio Bursts
• Chandrasekhar's relation and the stellar rotation in the Kepler field
• A young spectroscopic binary in a quintuple system part of the Local Association
• Discovery and characterization of a dense sub-Saturn TOI-6651b
• A photospheric and chromospheric activity analysis of the quiescent retrograde-planet host $\nu$ Octantis A
• Owens Valley Radio Observatory monitoring of LS I +61°303 completes three cycles of the super-orbital modulation
• A survey of TiOλ567 nm absorption in solar-type stars
• Intermittent QPO properties of MAXI J1820+070 revealed by Insight-HXMT
• A Bootstrap Method for Sinusoid Detection in Colored Noise and Uneven Sampling. Application to Exoplanet Detection
• Measuring the Orbital Parameters of Radial Velocity Systems in Mean Motion Resonance---a Case Study of HD 200964
• Periodic variability of the z=2.0 quasar QSO B1312+7837
• The star HIP 41378 potentially misaligned with its cohort of long-period planets
• Double eclipsing binary system KIC 3832716
• The GAPS programme at TNG XLIII. A massive brown dwarf orbiting the active M dwarf TOI-5375
• Detection of a 522 s Pulsation from the Transient X-ray Source Suzaku J0102.8--7204 (SXP 523) in the Small Magellanic Cloud
• The GAPS Programme at TNG. LXV. Precise density measurement of TOI-1430 b, a young planet with an evaporating atmosphere
• Non-radial oscillations mimicking a brown dwarf orbiting the cluster giant NGC 4349 No. 127
• Magnetic activity variability from H$\alpha$ line intensive monitoring for two F-type stars having a hot-Jupiter, $\tau$ Bootis A and $\upsilon$ Andromedae A
• Chromaticity of stellar activity in radial velocities : Anti-correlated families of lines on the M dwarf EV Lac with SPIRou and SOPHIE
• A Transiting Super-Earth in the Radius Valley and An Outer Planet Candidate Around HD 307842
• Estimating a Common Period for a Set of Irregularly Sampled Functions with Applications to Periodic Variable Star Data
• Period Variations for the Cepheid VZ Cyg
• TOI-3568 b: a super-Neptune in the sub-Jovian desert
• Unveiling VVV/WISE Mira variables on the far side of the Galactic disk: Distances, kinematics and a new extinction law
• A low-mass sub-Neptune planet transiting the bright active star HD 73344
• Transient QPOs of Fermi-LAT blazars under the Curved Jet Model
• Using Doppler Imaging to model stellar activity and search for planets around Sun-like stars
• Generalized Lomb-Scargle analysis of ${}^{90}\mathrm{Sr}{/}^{90}\mathrm{Y}$ decay rate measurements from the Physikalisch-Technische Bundesanstalt
• Photometric study of hot Algol-type binaries with long cycles
• NGC 1893: a young open cluster rich in multi-type variable stars
• Modeling Stellar Surface Features on Subgiant Star with an M-dwarf Companion
• New Dynamical State and Habitability of the HD 45364 Planetary System
• TOI-3288 b and TOI-4666 b: two gas giants transiting low-mass stars characterised by NIRPS
• Strong Variability in AzV 493, an Extreme Oe-Type Star in the SMC
• Evidence for orbital motion of CW Leonis from ground-based astrometry
• The visual binary AG Tri in $\beta$ Pictoris Association: can a debris disc cause very different rotation periods of its components?
• Optimal frequency-domain analysis for spacecraft time series: Introducing the missing-data multitaper power spectrum estimator
• Characterising the short-orbital period X-ray transient Swift J1910.2-0546
• Chemical abundances of three new Ba stars from the Keck/HIRES spectra
• A Wide-Field Survey for Transiting Hot Jupiters and Eclipsing Pre-Main-Sequence Binaries in Young Stellar Associations
• Timing analysis in microlensing
• On the incidence of planet candidates in open clusters and a planet confirmation
• Quest for the tertiary component in Cyg OB2 #5
• The brown dwarf population in the star forming region NGC2264
• TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS
• Fast Bayesian spectral analysis using Convolutional Neural Networks: Applications over GONG H$\alpha$ solar data
• Analysis of KIC 7023917 -- spotted low-mass ratio eclipsing binary with $\delta$ Scuti pulsations
• K2-399 b is not a planet. The Saturn that wandered through the Neptune desert is actually a hierarchical eclipsing binary
• Abundant sub-micron grains revealed in newly discovered extreme debris discs
• Precise radial velocities of giant stars -- XVII. Distinguishing planets from intrinsically induced radial velocity signals in evolved stars
• Generalized Lomb-Scargle analysis of ${}^{36}\mathrm{Cl}$ decay rate measurements at PTB and BNL
• The GAPS Programme at TNG -- XXIII. HD 164922 d: a close-in super-Earth discovered with HARPS-N in a system with a long-period Saturn mass companion
• TOI-2322: two transiting rocky planets close to the stellar rotation period and its first harmonic
• Expectations for the confirmation of Proxima c from a long-term radial velocity follow-up
• HATS-34b and HATS-46b: Re-characterisation Using TESS and Gaia
• A guide on spectral methods applied to discrete data -- Part I: One-dimensional signals
• Radial velocity precision of ESPRESSO through the analysis of the solar twin HIP 11915
• Variable stars in the VVV globular clusters. II. NGC6441, NGC6569, NGC6626 (M28), NGC6656 (M22), 2MASS-GC02, and Terzan10
• Origin of the X-ray Broad Iron Spectral Feature in GRS 1915+105
• Not so Swift: 20 years of multiwavelength observations of Mrk 421 and Mrk 501
• Semi-supervised standardized detection of extrasolar planets
• A continuous multiple hypothesis testing framework for optimal exoplanet detection
• MANGOS II: Five new giant planets orbiting low-mass stars
• A TESS search for donor-star pulsations in High-Mass X-ray Binaries
• A Trio of Giant Planets Orbiting Evolved Star HD 184010
• A sub-Neptune transiting the young field star HD 18599 at 40 pc
• L 363-38 b: a planet newly discovered with ESPRESSO orbiting a nearby M dwarf star
• A Close-in Planet Orbiting Giant Star HD 167768
• A New Period Determination Method for Periodic Variable Stars
• Exploring membership and variability in NGC 7419: An open cluster rich in super giants and Be type stars
• Pyodine: An open, flexible reduction software for iodine-calibrated precise radial velocities
• Disentangling the neighbouring pulsars SXP 15.3 and SXP 305
• BD-14 3065b (TOI-4987b): from giant planet to brown dwarf: evidence for deuterium burning in old age?
• Gaia20bdk -- a new FUor in Sh 2-301 Star Forming Region
• Long-term stellar activity of M dwarfs: A combined K2 and TESS study of two early M-type stars
• The GAPS Programme at TNG. LIX. A characterisation study of the $\sim$300 Myr old multi-planetary system orbiting the star BD+40 2790 (TOI-2076)
• Analysis of the time series in the space maser signals
• TOI-2458 b: A mini-Neptune consistent with in situ hot Jupiter formation
• The Solar Neighborhood LII: M Dwarf Twin Binaries -- Presumed Identical Twins Appear Fraternal in Variability, Rotation, H$\alpha$, and X-rays
• A joint effort to discover and characterize two resonant mini Neptunes around TOI-1803 with TESS, HARPS-N and CHEOPS
• Characterizing planetary systems with SPIRou: Detection of a sub-Neptune in a 6-day period orbit around the M dwarf Gl 410
• HADES RV Programme with HARPS-N at TNG. XVI. A super-Earth in the habitable zone of the GJ 3998 multi-planet system
• TESS and HARPS-N unveil two planets transiting TOI-1453. A super-Earth and one of the lowest mass sub-Neptunes
• The active RS CVn-type system SZ Pictoris
• A tidally detached super Neptune on a strongly misaligned retrograde orbit
• Radio and Optical Properties of the blazar PKS 1614+051 at z=3.21
• EWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9
• A 1.48-2.48 $\mu$m R=28000 spectroscopic atlas of the L7.5 and T0.5 components of the nearest pair of brown dwarfs: Luhman 16AB
• A sub-Earth-mass planet orbiting Barnard's star: No evidence of transits in TESS photometry
• Joint Analysis of Multicolor Photometry: A New Approach to Constrain the Nature of Multiple-Star Systems Hosting Exoplanet Candidates
• An improved correction of radial-velocity systematic for the SOPHIE spectrograph
• Glimpses of stellar surfaces. II. Origins of the photometric modulations and timing variations of KOI-1452
• GRAPE: Genetic Routine for Astronomical Period Estimation
• A hundred new eclipsing binary system candidates studied in a near-infrared window in the VVV survey
• RedDots: Planetary masses in the GJ1061 system from planet-planet interaction
• Discovery of carbon monoxide emission from five debris disks around young A-type stars
• About 300 days optical quasi-periodic oscillations in the long-term light curves of the blazar PKS 2155-304
• Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions
• Radial velocity homogeneous analysis of M dwarfs observed with HARPS. II. Detection limits and planetary occurrence statistics
• Orbital obliquity sampling in the Kepler-20 system using the 3D animation software Blender
• True Masses using RV data with Hipparcos and Gaia Astrometry
• Analysis of Gaia radial-velocity standards: stability and new substellar companion candidates
• A transiting rocky super-Earth and a non-transiting sub-Neptune orbiting the M dwarf TOI-771
• Multiwavelength Variability Analysis of the Blazar PKS 0727-11: A $\sim$168 Days Quasi-periodic Oscillation in Gamma-ray
• Asteroseismology of sz lyn using multi-band high time resolution photometry from ground and space
• TILARA: Template-Independent Line-by-line Algorithm for Radial velocity Analysis. I. Description of the code and application on a Sun-like star
• Variable stars detection in the field of open cluster NGC 188
• Application of the Trend Filtering Algorithm for Photometric Time Series Data
• Variability of young stars: Determination of rotational periods of weak-line T Tauri stars in the Cepheus-Cassiopeia star-forming region
• The puzzling properties of the magnetic O star Tr16-22
• Discovery of a Nearby Habitable Zone Super-Earth Candidate Amenable to Direct Imaging
• VVV-WIT-13: an eruptive young star with cool molecular features
• Simultaneous photometric and CARMENES spectroscopic monitoring of fast-rotating M dwarf GJ 3270. Discovery of a post-flare corotating feature
• An investigation of the magnetic activity of HD 134319 based on TESS photometry and ground-based spectroscopy
• Photometric and spectroscopic variability of the blue supergiant rho Leo
• Generalized Lomb-Scargle analysis of ${}^{123}\mathrm{I}$ and ${}^{99m}\mathrm{Tc}$ decay rate measurements
• FINKER: Frequency Identification through Nonparametric KErnel Regression in astronomical time series
• The RoPES project with HARPS and HARPS-N II. A third planet in the multi-planet system HD 176986
• The SPIRou Legacy Survey: Detection of a nearby world orbiting in the habitable zone of Gl725B achieved by correcting strong telluric contamination in near-infrared radial velocities with WAPITI
• The multi-planet system TOI-5624: Four transiting sub-Neptunes with an outer companion revealed by transit-timing variations
• The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS
• A new third planet and the dynamical architecture of the HD33142 planetary system
• Comparison of the disk precession models with the photometric behavior of TT Ari in 2021-2023
• Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
• Tracking Human Behavioural Consistency by Analysing Periodicity of Household Water Consumption
• Uncovering the Rapidly Evolving Orbits of the Dynamic TOI-201 System
• The GAPS programme at TNG LXXI. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)
• SPORES-HWO. II. Companion Mass Limits and Updated Planet Properties for 120 Future Exoplanet Imaging Targets from 35 yr of Precise Doppler Monitoring
• TOI-1634 b: an Ultra-Short Period Keystone Planet Sitting Inside the M Dwarf Radius Valley
• Adaptation of the Phase Distance Correlation Periodogram to Account for Measurement Uncertainties
• Confirmation of the hot super-Neptune TOI-672 b with NIRPS and HARPS and Insights into the Neptunian desert around M dwarfs
• Discovery of a transiting hot water-world candidate orbiting Ross 176 with TESS and CARMENES
• New Insights into Time Series Analysis IV: Panchromatic and Flux Independent Period Finding Methods
• Atacama Cosmology Telescope: Observations of supermassive black hole binary candidates. Strong sinusoidal variations at 95, 147 and 225 GHz in PKS 2131$-$021 and PKS J0805$-$0111
• Simultaneous inference of periods and period-luminosity relations for Mira variable stars
• Destruction of "Peas in a Pod?" A Candidate Multi-planet System Around the Nearby, Bright Star, HD208487
• Variability Study and Searching for QPOs with day-like periods in the blazar S5 0716+714 with TESS
• The Solar Neighborhood. LV. M Dwarf Twin Binaries -- One in Five Twin Sibling Pairs Are Mismatched in Activity and/or Rotation
• Stellar-activity analysis of the nearby M dwarf GJ 526. Multi-dimensional Gaussian-process modelling of RV, FWHM and S-index
• An extensive radial velocity survey toward NGC 6253
• Constraining an exoplanets magnetic field using star-planet interactions
• Multi-wavelength photometric study of five contact binaries in the field of globular cluster M4
• TOI-1438: A rare system with two short-period sub-Neptunes and a tentative long-period Jupiter-like planet orbiting a K0V star
• Determining the incidence rate of magnetic $\delta$ Scuti candidates with CoRoT
• Measuring masses of transiting Earth-like planets: first insights from the PLATO RV data challenge
• A transiting hot Jupiter with two outer siblings orbiting an intermediate-mass post main-sequence star
• Spectral Ratio Analysis: probing of a new suite of stellar activity indicators as a tool for astrophysical noise mitigation
• Syntriod: A Robust Initial Parameter Estimator for Radial Velocity Curve Solutions Beyond Conventional Sampling Limits
• HD 183986: a high-contrast SB2 system with a pulsating component
• Activity-rotation in the dM4 star Gl 729. A possible chromospheric cycle
• Revisiting the secondary eclipses of KELT-1b using TESS observations
• Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
• Sibling Sub-Neptunes Around Sibling M Dwarfs: TOI-521 and TOI-912
• Improved characterization of the TOI-2141 system: a dense sub-Neptune with non-transiting inner and outer companions
• Recovering Signals in CoRoT Mission (RSCoRoT): I. Short Period Variable Stars
• A New Catalog of Asymptotic Giant Branch Stars in Our Galaxy
• A Multi-instrument Generalized Lomb-Scargle Periodogram Implementation
• The Multiband Imaging Survey for High-Alpha PlanetS (MISHAPS) I: Preliminary Constraints on the Occurrence Rate of Hot Jupiters in 47 Tucanae
• ExoEcho: Exoplanet Ephemerides Change Observations. III. A JWST Survey for Transit Timing Variations of 37 Exoplanets
• HAT-P-68b: A Transiting Hot Jupiter Around a K5 Dwarf Star
• TOI-6884b: A low-mass brown dwarf transiting a slightly evolved star
• Photometric Modulations on Intermediate Timescales in the Symbiotic Binaries
• TYC~2990-127-1: an Algol-type SB2 binary system of subgiant and red giant with a probable ongoing mass-transfer
• Exploring Young Stellar Variability with Gaia DR3 light curves
• Model Independent Periodogram for Scanning Astrometry
• A Warm Massive Pair of Planets around TOI-1232 Revealed with Transit-timing Variations and Doppler Spectroscopy
• A magnetic field detection in the massive O-type bright giant 63 Oph
• Transit Timing Variations of the Sub-Saturn Exoplanet HAT-P-12b
• Dynamical architecture of the HD 107148 system
• The GAPS Programme at TNG. LIII. New insights on the peculiar XO-2 system
• Rotation of young solar-type stars as seen by Gaia and K2
• First detection of variable radio emission originating from the infant planetary system V1298 Tau
• Discovery of a multi-planetary system orbiting the aged Sun-like star HD 224018
• Activity and Rotation of Nearby Field M Dwarfs in the TESS Southern Continuous Viewing Zone
• The GAPS Programme at TNG LXVIII. Characterization of the outer substellar companion around HD 72659 with a multi-technique approach
• Magnetic activity and differential rotation of HIP12653
• Neutrino-Flux Variability, Nuclear-Decay Variability, and Their Apparent Relationship
• Efficient use of simultaneous multi-band observations for variable star analysis
• SXP 15.6 -- an accreting pulsar close to spin equilibrium?
• CARMENES input catalog of M dwarfs VI. A time-resolved Ca II H&K catalog from archival data
• Searching for GEMS: Three warm Saturns and a super-Jupiter orbiting four early M-dwarfs
• Cyclic light variations and accretion disk evolution in the LMC eclipsing binary OGLE-LMC-DPV-062
• TOI-1201 b: A mini-Neptune transiting a bright and moderately young M dwarf
• The GAPS Programme at the TNG: LXX. TOI-5734b: A hot sub-Neptune orbiting a relatively young K dwarf with an Earth-like density
• Activity cycles in RS CVn type stars
• Testing X-ray Periodicity and Long-Term Trend in PG 1553+113 via Targeted Swift-XRT Monitoring
• K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant
• Filling the gap in the IERS C01 polar motion series in 1858.9-1860.9
• Revisiting BD-06 1339b: A Likely False Positive Caused by Stellar Activity
• The impact of two non-transiting planets and stellar activity on mass determinations for the super-Earth CoRoT-7b
• TOI-3757 b: A low density gas giant orbiting a solar-metallicity M dwarf