Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics

Abstract

While the strong anti-correlation between chromospheric activity and age has led to the common use of the Ca II H & K emission index (R'_HK = L_HK/L_bol) as an empirical age estimator for solar type dwarfs, existing activity-age relations produce implausible ages at both high and low activity levels. We have compiled R'_HK data from the literature for young stellar clusters, richly populating for the first time the young end of the activity-age relation. Combining the cluster activity data with modern cluster age estimates, and analyzing the color-dependence of the chromospheric activity age index, we derive an improved activity-age calibration for F7-K2 dwarfs (0.5 < B-V < 0.9 mag). We also present a more fundamentally motivated activity-age calibration that relies on conversion of R'_HK values through the Rossby number to rotation periods, and then makes use of improved gyrochronology relations. We demonstrate that our new activity-age calibration has typical age precision of ~0.2 dex for normal solar-type dwarfs aged between the Hyades and the Sun (~0.6-4.5 Gyr). Inferring ages through activity-rotation-age relations accounts for some color-dependent effects, and systematically improves the age estimates (albeit only slightly). We demonstrate that coronal activity as measured through the fractional X-ray luminosity (R_X = L_X/L_bol) has nearly the same age- and rotation-inferring capability as chromospheric activity measured through R'_HK. As a first application of our calibrations, we provide new activity-derived age estimates for the nearest 100 solar-type field dwarfs (d < 15 pc).

78 pages, 15 figures, ApJ, in press. Files can also be downloaded from http://www.cfa.harvard.edu/~emamajek/cahk/

References in corpus (59)

• The Geneva-Copenhagen survey of the Solar neighbourhood: Ages, metallicities, and kinematic properties of 14,000 F and G dwarfs
• A Hipparcos census of the nearby OB associations
• Ages for illustrative field stars using gyrochronology: viability, limitations and errors
• SB9: The Ninth Catalogue of Spectroscopic Binary Orbits
• Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5 Low-Mass Star Spectroscopic Sample
• Chromospheric CaII Emission in Nearby F, G, K, and M stars
• Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
• Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Northern Sample I
• Keck Spectra of Pleiades Brown Dwarf Candidates and a Precise Determination of the Lithium Depletion Edge in the Pleiades
• Some Revised Observational Constraints on the Formation and Evolution of the Galactic Disk
• Stellar Iron Abundances: non-LTE Effects
• Post-T Tauri Stars in the Nearest OB Association
• The Y^2 Stellar Evolutionary Tracks
• The evolution of X-ray emission in young stars
• Catalogue of [Fe/H] determinations for FGK stars : 2001 edition
• A Moving Cluster Distance to the Exoplanet 2M1207 B in the TW Hya Association
• Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC2391: Lithium depletion and Halpha emission
• The Complete Census of 70-um-Bright Debris Disks within the FEPS (Formation and Evolution of Planetary Systems) Spitzer Legacy Survey of Sun-like Stars
• Patterns of photometric and chromospheric variation among Sun-like stars: A 20-year perspective
• Median Statistics, H_0, and the Accelerating Universe
• A catalogue of [Fe/H] determinations : 1996 edition
• The formation and evolution of planetary systems: Grain growth and chemical processing of dust in T Tauri systems
• A Spectroscopic Survey of Subarcsecond Binaries in the Taurus-Auriga Dark Cloud with the Hubble Space Telescope
• A Hipparcos study of the Hyades open cluster: Improved colour-absolute magnitude and Hertzsprung-Russell diagrams
• Constraining fundamental stellar parameters using seismology. Application to Alpha Centauri AB
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• The Age of AB Dor
• The Age-Activity-Rotation Relationship in Solar-Type Stars
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• Analysis of alpha Centauri AB including seismic constraints
• Formation and Evolution of Planetary Systems: Placing Our Solar System in Context with Spitzer
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• Searching for Planets in the Hyades II: Some Implications of Stellar Magnetic Activity
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• Asteroseismology of alpha Cen A. Evidence of rotational splitting
• Are Debris Disks and Massive Planets Correlated?
• The Formation and Evolution of Planetary Systems: First Results from a Spitzer Legacy Science Program
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• A Survey of Chromospheric Activity in the Solar-Type Stars in the Open Cluster M67
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• Erratum: "Post-T Tauri Stars in the Nearest OB Association" (AJ, 124, 1670 [2002])
• Pre-Main Sequence Evolutions of Solar Abundance Lowmass Stars

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• Rotation Period Evolution in Low-Mass Binary Stars: The Impact of Tidal Torques and Magnetic Braking
• The GAPS Programme with HARPS-N@TNG V. A comprehensive analysis of the XO-2 stellar and planetary systems
• Calibration of the Halpha Age-Activity relation for M dwarfs
• HAT-P-15b: A 10.9-day Extrasolar Planet Transiting a Solar-type Star
• WTS-2 b: a hot Jupiter orbiting near its tidal destruction radius around a K-dwarf
• Thermal emission at 3.6-8 micron from WASP-19b: a hot Jupiter without a stratosphere orbiting an active star
• The Initial-Final Mass Relation among White Dwarfs in Wide Binaries
• HIP 38939B: A New Benchmark T Dwarf in the Galactic Plane Discovered with Pan-STARRS1
• An Overabundance of Low-density Neptune-like Planets
• Orbit and Dynamical Mass of the Late-T Dwarf Gl 758 B
• Evaluating Rotation Periods of M Dwarfs Across the Ages
• Magnetic fields of young solar twins
• The Effects of Close Companions (and Rotation) on the Magnetic Activity of M Dwarfs
• The Stellar Activity of TRAPPIST-1 and Consequences for the Planetary Atmospheres
• Ultraviolet-Selected Field and Pre-Main-Sequence Stars Towards Taurus and Upper Scorpius
• The Kepler-19 system: a thick-envelope super-Earth with two Neptune-mass companions characterized using Radial Velocities and Transit Timing Variations
• High atmospheric metal enrichment for a Saturn-mass planet
• Lithium in M67: From the main sequence to the red giant branch
• The GAPS Programme with HARPS-N at TNG VIII: Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10
• The effect of dust composition and shape on radiation-pressure forces and blowout sizes of particles in debris disks
• Sounding stellar cycles with Kepler - II. Ground-based observations
• A giant planet in the triple system HD132563
• The solar wind in time: a change in the behaviour of older winds?
• SCExAO/CHARIS Direct Imaging Discovery of a 20 au Separation, Low-Mass Ratio Brown Dwarf Companion to an Accelerating Sun-like Star
• Rapid Rotation in the Kepler Field: Not a Single Star Phenomenon
• The SOPHIE search for northern extrasolar planets. IV. Massive companions in the planet-brown dwarf boundary
• The HD 40307 Planetary System: Super-Earths or Mini-Neptunes?
• Blue not brown: UKIDSS T dwarfs with suppressed K-band flux
• Improved parameters of seven Kepler giant companions characterized with SOPHIE and HARPS-N
• A First Look at Rotation in Inactive Late-Type M Dwarfs
• Exploring the Morphology of RAVE Stellar Spectra
• An Improved Age-Activity Relationship for Cool Stars older than a Gigayear
• The Solar Twin Planet Search. V. Close-in, low-mass planet candidates and evidence of planet accretion in the solar twin HIP 68468
• WASP-23b: a transiting hot Jupiter around a K dwarf and its Rossiter-McLaughlin effect
• A Schmidt-Kennicutt law for star formation in the Milky Way disk
• Astrophysical Insights into Radial Velocity Jitter from an Analysis of 600 Planet-search Stars
• Estimates of the Planet Yield from Ground-Based High-Contrast Imaging Observations as a Function of Stellar Mass
• Revisiting the correlation between stellar activity and planetary surface gravity
• GJ 273: On the formation, dynamical evolution and habitability of a planetary system hosted by an M dwarf at 3.75 parsec
• Confusion limited surveys: using WISE to quantify the rarity of warm dust around Kepler stars
• High-contrast Imaging with Spitzer: Deep Observations of Vega, Fomalhaut, and epsilon Eridani
• Hot, rocky and warm, puffy super-Earths orbiting TOI-402 (HD 15337)
• Orbital and Evolutionary Constraints on the Planet Hosting Binary GJ 86 from the Hubble Space Telescope
• A critical reassessment of the fundamental properties of GJ 504: Chemical composition and age
• A 4 Gyr M-dwarf Gyrochrone from CFHT/MegaPrime Monitoring of the Open Cluster M67
• The HADES RV Programme with HARPS-N@TNG. III. Flux-flux and activity-rotation relationships of early-M dwarfs
• The SOPHIE search for northern extrasolar planets. XVI. HD 158259: A compact planetary system in a near-3:2 mean motion resonance chain
• Time evolution of high-energy emissions of low-mass stars:I. Age determination using stellar chronology with white dwarfs in wide binaries
• A Herschel resolved far-infrared dust ring around HD 207129
• The Epsilon Eridani System Resolved by Millimeter Interferometry
• The TRENDS High-Contrast Imaging Survey. VI. Discovery of a Mass, Age, and Metallicity Benchmark Brown Dwarf
• Transiting exoplanets from the CoRoT space mission. XIII. CoRoT-13b: a dense hot Jupiter in transit around a star with solar metallicity and super-solar lithium content
• The young HD 73583 (TOI-560) planetary system: Two 10-M${}_{\oplus }$ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf
• The debris disk host star HD 61005: a member of the Argus Association?
• KELT-19Ab: A P~4.6 Day Hot Jupiter Transiting a Likely Am Star with a Distant Stellar Companion
• The Transiting Multi-planet System HD15337: Two Nearly Equal-mass Planets Straddling the Radius Gap
• BAFFLES: Bayesian Ages for Field Lower-Mass Stars
• Herschel discovery of a new class of cold, faint debris discs
• A Catalog of Stellar Unified Properties (CATSUP) for 951 FGK-Stars Within 30 pc
• Populating the brown dwarf and stellar boundary: Five stars with transiting companions near the hydrogen-burning mass limit
• Keck/NIRSPEC studies of He I in the atmospheres of two inflated hot gas giants orbiting K dwarfs: WASP-52b and WASP-177b
• Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS
• Benchmark ages for the Gaia benchmark stars
• Zodiacal Exoplanets in Time (ZEIT) II. A "Super-Earth" Orbiting a Young K Dwarf in the Pleiades Neighborhood
• First Detection of Thermal Radio Emission from Solar-Type Stars with the Karl G. Jansky Very Large Array
• The age-mass-metallicity-activity relation for solar-type stars: Comparisons with asteroseismology and the NGC 188 open cluster
• Constraining the evolution of stellar rotation using solar twins
• WASP-36b: A new transiting planet around a metal-poor G-dwarf, and an investigation into analyses based on a single transit light curve
• Rotating Stars from Kepler Observed with Gaia DR1
• Exploring the evolution of stellar rotation using Galactic kinematics
• Rotation and Lithium Confirmation of a 500 Parsec Halo for the Open Cluster NGC 2516
• The CORALIE survey for southern extrasolar planets XVIII. Three new massive planets and two low mass brown dwarfs at separation larger than 5 AU
• K2-111: an old system with two planets in near-resonance
• The Chromospheric Activity, Age, Metallicty and Space Motions of 36 Wide Binaries
• Mass, energy, and momentum capture from stellar winds by magnetized and unmagnetized planets: implications for atmospheric erosion and habitability
• The Rotation-Activity Correlations in K and M dwarfs. I. Stellar parameters, compilations of $v\sin i$ and $P/\sin i$ for a large sample of late-K and M dwarfs
• TOI-2076 and TOI-1807: Two young, comoving planetary systems within 50 pc identified by TESS that are ideal candidates for further follow-up
• Median Statistics Estimate of the Distance to the Galactic Center
• Variability in stellar granulation and convective blueshift with spectral type and magnetic activity. II. From young to old main-sequence K-G-F stars
• Exploring the realm of scaled Solar System analogs with HARPS
• Ca II H&K stellar activity parameter: a proxy for stellar Extreme Ultraviolet Fluxes
• Three Small Planets Transiting a Hyades Star
• Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
• TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
• Constraining differential rotation of Sun-like stars from asteroseismic and starspot rotation periods
• Close-in sub-Neptunes reveal the past rotation history of their host stars: atmospheric evolution of planets in the HD3167 and K2-32 planetary systems
• The Kepler-11 system: evolution of the stellar high-energy emission and {initial planetary} atmospheric mass fractions
• The Hercules-Lyra Association revisited New age estimation and multiplicity study
• Gyro-Kinematic Ages for around 30,000 Kepler Stars
• TOI-811b and TOI-852b: New transiting brown dwarfs with similar masses and very different radii and ages from the TESS mission
• WASP-117b: a 10-day-period Saturn in an eccentric and misaligned orbit
• HD219666b: A hot-Neptune from TESS Sector 1
• Zodiacal Exoplanets in Time (ZEIT) VII: A Temperate Candidate Super-Earth in the Hyades Cluster
• The Gaia-ESO Survey: A new approach to chemically characterising young open clusters II. Abundances of the neutron-capture elements Cu, Sr, Y, Zr, Ba, La, and Ce
• Galactic Kinematics and Observed Flare Rates of a Volume-Complete Sample of Mid-to-Late M-dwarfs: Constraints on the History of the Stellar Radiation Environment of Planets Orbiting Low-mass Stars
• Revisiting the 16 Cygni planet host at unprecedented precision and exploring automated tools for precise abundances
• Understanding the Limitations of Gyrochronology for Old Field Stars
• Deep LMT/AzTEC millimeter observations of Epsilon Eridani and its surroundings
• The rotational behavior of Kepler Stars with Planets
• The Magellan-TESS Survey I: Survey Description and Mid-Survey Results
• Zodiacal Exoplanets in Time. X. The Orbit and Atmosphere of the Young "Neptune Desert"-Dwelling Planet K2-100b
• Evaluating Gyrochronology on the Zero-Age-Main-Sequence: Rotation Periods in the Southern Open Cluster Blanco 1 from the KELT-South Survey
• Rossiter-McLaughlin Observations of 55 Cnc e
• The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion
• Chromospheric activity and evolutionary age of the Sun and four solar twins
• From scattered-light to millimeter emission: A comprehensive view of the Gyr-old system of HD 202628 and its eccentric debris ring
• Revisiting the connection between magnetic activity, rotation period, and convective turnover time for main-sequence stars
• Using rotation, magnetic activity and lithium to estimate the ages of low mass stars
• New Rotation Periods in the Open Cluster NGC 1039 (M 34), and a Derivation of its Gyrochronology Age
• The Debris Disk of Solar Analogue $\tau$ Ceti: Herschel Observations and Dynamical Simulations of the Proposed Multiplanet System
• A Pan-STARRS1 study of the relationship between wide binarity and planet occurrence in the Kepler field
• Bridging the gap -- the disappearance of the intermediate period gap for fully convective stars, uncovered by new ZTF rotation periods
• Common dynamo scaling in slowly rotating young and evolved stars
• Characterization of the HD 17156 planetary system
• ISPY -- NACO Imaging Survey for Planets around Young stars: Survey description and results from the first 2.5 years of observations
• Rotation, activity, and lithium abundance in cool binary stars
• Activity and Magnetic Field Structure of the Sun-Like Planet Hosting Star HD 1237
• A critical assessment of the applicability of the energy-limited approximation for estimating exoplanetary mass-loss rates
• A method to estimate stellar ages from kinematical data
• Photometric variability as a proxy for magnetic activity and its dependence on metallicity
• Astrophysical false positives in direct imaging for exoplanets: a white dwarf close to a rejuvenated star
• The Sizes of the Nearest Young Stars
• Dynamical Mass of the Young Substellar Companion HD 984 B
• Characterisation of the HD 219134 multi-planet system I. Observations of stellar magnetism, wind, and high-energy flux
• Direct imaging of sub-Jupiter mass exoplanets with James Webb Space Telescope coronagraphy
• An investigation of chromospheric activity spanning the Vaughan--Preston gap: impact on stellar ages
• Temporal evolution and correlations of optical activity indicators measured in Sun-as-a-star observations
• The GAPS Programme at TNG XXVIII -- A pair of hot-Neptunes orbiting the young star TOI-942
• Rotation periods for cool stars in the open cluster NGC 3532. The transition from fast to slow rotation
• Stellar rotational periods in the planet hosting open cluster Praesepe
• The open flux evolution of a solar-mass star on the main sequence
• Further Evidence of Modified Spin-down in Sun-like Stars: Pileups in the Temperature-Period Distribution
• Magnetodynamo Lifetimes for Rocky, Earth-Mass Exoplanets with Contrasting Mantle Convection Regimes
• Solar twins and the Barium puzzle
• Deep HST/STIS Visible-Light Imaging of Debris Systems around Solar Analog Hosts
• The correlation between photometric variability and radial velocity jitter, based on TESS and HARPS observations
• High precision analysis of the solar twin HIP 100963
• From Pebbles and Planetesimals to Planets and Dust: the Protoplanetary Disk--Debris Disk Connection
• TOI-1759 b: a transiting sub-Neptune around a low mass star characterized with SPIRou and TESS
• Discovery of a Transiting Planet Near the Snow-Line
• The Host Stars of Keplers Habitable Exoplanets: Superflares, Rotation and Activity
• The habitability of stagnant-lid Earths around dwarf stars
• Rotation Distributions around the Kraft Break with TESS and Kepler: The Influences of Age, Metallicity, and Binarity
• Uniform Forward-Modeling Analysis of Ultracool Dwarfs. I. Methodology and Benchmarking
• Discovery of a Transiting Adolescent Sub-Neptune Exoplanet with K2
• The SOPHIE search for northern extrasolar planets. X. Detection and characterization of giant planets by the dozen
• Constraining the Orbit and Mass of epsilon Eridani b with Radial Velocities, Hipparcos IAD-Gaia DR2 Astrometry, and Multi-epoch Vortex Coronagraphy Upper Limits
• Planet Detectability in the Alpha Centauri System
• The Rotation-Activity Correlations in K and M dwarfs. II. New constraints on the dynamo mechanisms in late-K and M dwarfs before and at the transition to complete convection
• Untangling the Galaxy. IV. Empirical Constraints on Angular Momentum Evolution and Gyrochronology for Young Stars in the Field
• A peculiar class of debris disks from Herschel/DUNES - A steep fall off in the far infrared
• Two planetary companions around the K7 dwarf GJ 221 : a hot super-Earth and a candidate in the sub-Saturn desert range
• The Discovery of a Planetary Companion Interior to Hot Jupiter WASP-132 b
• The Inner 25 AU Debris Distribution in the epsilon Eri System
• Minimalist coupled evolution model for stellar x-ray activity, rotation, mass loss, and magnetic field
• A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)
• Detections of solar-like oscillations in dwarfs and subgiants with Kepler DR25 short-cadence data
• WASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South survey
• Direct Imaging Constraints on the Putative Exoplanet 14 Her c
• Debris Disks around Solar-Type Stars: Observations of the Pleiades with Spitzer Space Telescope
• A color-period diagram for the open cluster M 48 (NGC 2548), and its rotational age
• First long-term activity study of AU Microscopii: a possible chromospheric cycle
• Star-planet interactions and selection effects from planet detection methods
• Stellar Properties of Active G and K Stars: Exploring the Connection Between Starspots and Chromospheric Activity
• On the correlation between stellar chromospheric flux and the surface gravity of close-in planets
• MESA models with magnetic braking
• Activity time series of old stars from late F to early K. I. Simulating radial velocity, astrometry, photometry, and chromospheric emission
• ALMA Observations of the Debris Disk of Solar Analogue Tau Ceti
• Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions
• Sun-like stars produce superflares roughly once per century
• Chromospherically Active Stars in the RAVE Survey. I. The Catalogue
• TOI-5005 b: A super-Neptune in the savanna near the ridge
• New Coronae and Stellar Associations Revealed by a Clustering Analysis of the Solar Neighborhood
• Precision Millimeter Astrometry of the $\alpha$ Centauri AB System
• A new sample of warm extreme debris disks from the ALLWISE catalog
• Gyrochronological dating of the stellar moving group Group X
• The HARPS search for southern extra-solar planets XXXVI: Five new long-period giant planets and a system update
• Testing Models of Stellar Structure and Evolution I. Comparison with Detached Eclipsing Binaries
• ROOSTER: a machine-learning analysis tool for Kepler stellar rotation periods
• WISE2150-7520AB: A very low mass, wide co-moving brown dwarf system discovered through the citizen science project Backyard Worlds: Planet 9
• Stellar activity as a tracer of moving groups
• Stellar X-ray activity across the Hertzsprung-Russell diagram. I. Catalogs
• Stellar chromospheric activity and age relation from open clusters in the LAMOST Survey
• The Orbital Eccentricities of Directly Imaged Companions Using Observable-Based Priors: Implications for Population-level Distributions
• A vigorous activity cycle mimicking a planetary system in HD200466
• The effect of ISM absorption on stellar activity measurements and its relevance for exoplanet studies
• Suppressed Far-UV Stellar Activity and Low Planetary Mass Loss in the WASP-18 System
• K2-231 b: A sub-Neptune exoplanet transiting a solar twin in Ruprecht 147
• SALT observations of the Chromospheric Activity of Transiting Planet Hosts: Mass Loss and Star Planet Interactions
• Very Low Mass Stellar and Substellar Companions to Solar-like Stars From MARVELS IV: A Candidate Brown Dwarf or Low-Mass Stellar Companion to HIP 67526
• Multi-Epoch Observations of HD69830: High Resolution Spectroscopy and Limits to Variability
• Spin-orbit measurements and refined parameters for the exoplanet systems WASP-22 and WASP-26
• LRG-BEASTS: sodium absorption and Rayleigh scattering in the atmosphere of WASP-94A b using NTT/EFOSC2
• The VAST Survey - IV. A wide brown dwarf companion to the A3V star $\zeta$ Delphini
• The Origin of Systems of Tightly Packed Inner Planets with Misaligned, Ultra-Short-Period Companions
• Chromospherically Active Stars in the RAVE Survey. II. Young dwarfs in the Solar neighborhood
• The SOPHIE search for northern extrasolar planets. XI. Three new companions and an orbit update: Giant planets in the habitable zone
• Gaia Data Release 3. Stellar chromospheric activity and mass accretion from Ca II IRT observed by the Radial Velocity Spectrometer
• The test case of HD26965: difficulties disentangling weak Doppler signals from stellar activity
• Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a planetary companion
• High Contrast Imaging with Spitzer : Constraining the Frequency of Giant Planets out to 1000 AU separations
• Rotationally Driven Ultraviolet Emission of Red Giant Stars
• The HARPS search for southern extra-solar planets. XXXIX. HD175607 b, the most metal-poor G dwarf with an orbiting sub-Neptune
• Optimized modeling of Gaia-Hipparcos astrometry for the detection of the smallest cold Jupiter and confirmation of seven low mass companions
• Enhanced stellar activity for slow antisolar differential rotation?
• Evidence of a massive planet candidate orbiting the young active K5V star BD+20 1790
• Optimizing exoplanet transit searches around low-mass stars with inclination constraints
• High contrast imaging at 10 microns, a search for exoplanets around: Eps Indi A, Eps Eri, Tau Ceti, Sirius A and Sirius B
• Characterizing two solar-type Kepler subgiants with asteroseismology: KIC10920273 and KIC11395018
• Two long-period transiting exoplanets on eccentric orbits: NGTS-20 b (TOI-5152 b) and TOI-5153 b
• A 12-Year Activity Cycle for HD 219134
• Stellar Superflares Observed Simultaneously with Kepler and XMM-Newton
• The SOPHIE search for northern extrasolar planets. II. A multi-planet system around HD9446
• HD 5388 b is a 69 M_Jup companion instead of a planet
• The first super-Earth Detection from the High Cadence and High Radial Velocity Precision Dharma Planet Survey
• Long-Term Stability of Tightly Packed Multi-Planet Systems in Prograde, Coplanar, Circumstellar Orbits within the $\alpha$ Centauri AB System
• Activity time series of old stars from late F to early K. II. Radial velocity jitter and exoplanet detectability
• The HARPS search for southern extra-solar planets. XX. Planets around the active star BD-08:2823
• Employing a New BVIc Photometric Survey of IC 4665 to Investigate the Age of this Young Open Cluster
• Signature of Planetary Mergers on Stellar Spins
• Stellar Rotation and Structure of the $\alpha$ Persei Complex: When Does Gyrochronology Start to Work?
• Forming the first planetary systems: debris around Galactic thick disc stars
• Spectral and atmospheric characterisation of a new benchmark brown dwarf HD13724B
• 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
• GPI Spectroscopy of the Mass, Age, and Metallicity Benchmark Brown Dwarf HD 4747 B
• The well-aligned orbit of WASP-84b: evidence for disc migration
• Chemo-kinematic ages of eccentric-planet-hosting M dwarf stars
• High-Contrast 3.8 Micron Imaging Of The Brown Dwarf/Planet-Mass Companion to GJ 758
• A Mini-Neptune from TESS and CHEOPS Around the 120 Myr Old AB Dor member HIP 94235
• The spin-orbit alignment of visual binaries
• Three small planets transiting the bright young field star K2-233
• A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system
• Magnetic and Rotational Evolution of $\rho$ CrB from Asteroseismology with TESS
• Three new brown dwarfs and a massive hot Jupiter revealed by TESS around early-type stars
• In Search of Future Earths: Assessing the possibility of finding Earth analogues in the later stages of their habitable lifetimes
• The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter
• Detection of Alpha Centauri at radio wavelengths: chromospheric emission and search for star-planet interaction
• Orbital and spectral characterization of the benchmark T-type brown dwarf HD 19467B
• Magnetic activity evolution of solar-like stars: I. S_ph-Age relation derived from Kepler observations
• Non-Gaussian Error Distributions of LMC Distance Moduli Measurements
• Orbital and spectral analysis of the benchmark brown dwarf HD 4747B
• Discovery of a Low-Mass Companion to the F7V star HD 984
• On the Nature of Small Planets around the Coolest Kepler Stars
• The Sun and stars as the primary energy input in planetary atmospheres
• Rotation periods for cool stars in the open cluster Ruprecht 147 (NGC 6774): Implications for gyrochronology
• The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
• Robust Transiting Exoplanet Radii in the Presence of Starspots from Ingress and Egress Durations
• Magnetic braking with MESA evolutionary models in the single star and LMXB regimes
• A near-infrared interferometric survey of debris-disk stars. VII. The hot/warm dust connection
• MCMCI: A code to fully characterise an exoplanetary system
• A dusty benchmark brown dwarf near the ice line of HD 72946
• On the origin of the non-detection of metastable HeI in the upper atmosphere of the hot Jupiter WASP-80b
• Far-UV spectroscopy of the planet-hosting star WASP-13: high-energy irradiance, distance, age, planetary mass-loss rate, and circumstellar environment
• The Solar Wind Environment in Time
• The Evolution of Dusty Debris Disks Around Solar Type Stars
• K2-265 b: A Transiting Rocky Super-Earth
• The chemical composition of $\alpha$ Cen AB revisited
• Directly Determined Properties of HD 97658 from Interferometric Observations
• On the Identification of Wide Binaries in the Kepler Field
• HD 28109 hosts a trio of transiting Neptunian planets including a near-resonant pair, confirmed by ASTEP from Antarctica
• Rotation Periods of Wide Binaries in the Kepler Field
• The TOI-763 system: sub-Neptunes orbiting a Sun-like star
• TOI-2196 b: Rare planet in the hot Neptune desert transiting a G-type star
• Two Warm Neptunes transiting HIP 9618 revealed by TESS & Cheops
• Confirmation of an He I evaporating atmosphere around the 650-Myr-old sub-Neptune HD235088 b (TOI-1430 b) with CARMENES
• The LEECH Exoplanet Imaging Survey: Orbit and Component Masses of the Intermediate Age, Late-Type Binary NO UMa
• Linking Stellar Coronal Activity and Rotation at 500 Myr: A Deep Chandra Observation of M37
• The Ca II H&K Rotation-Activity Relation in 53 mid-to-late type M-Dwarfs
• The McDonald Accelerating Stars Survey (MASS): Discovery of a Long-Period Substellar Companion Orbiting the Old Solar Analog HD 47127
• The Chemical Nature of the Young 120-Myr-old Nearby Pisces-Eridanus Stellar Stream Flowing through the Galactic Disk
• The EBLM project. VII. Spin-orbit alignment for the circumbinary planet host EBLM J0608-59 A/TOI-1338 A
• Age Aspects of Habitability
• Asteroseismology of the Hyades with K2: first detection of main-sequence solar-like oscillations in an open cluster
• The homogeneous characterisation of Ariel host stars
• An extreme planetary system around HD219828. One long-period super Jupiter to a hot-neptune host star
• Tracers of chromospheric structure. I. CaII H$\&$K emission distribution of 13000 F, G and K stars in SDSS DR7 spectroscopic sample
• Fine structure of the age-chromospheric activity relation in solar-type stars I: The Ca II infrared triplet: Absolute flux calibration
• The Oceanus Moving Group: A New 500 Myr-Old Host for the Nearest Brown Dwarf
• X-ray emission from the super-Earth host GJ 1214
• Extending the FIP bias sample to magnetically active stars. Challenging the FIP bias paradigm?
• Transition from spot to faculae domination -- An alternate explanation for the dearth of intermediate \textit{Kepler} rotation periods
• Stellar Aspects of Habitability: Characterizing Target Stars for Terrestrial Planet Search Missions
• The Origin of Superflares on G-Type Dwarf Stars of Various Ages
• TOI 694 b and TIC 220568520 b: Two Low-Mass Companions Near the Hydrogen Burning Mass Limit Orbiting Sun-like Stars
• Target star catalog for Darwin: Nearby Stellar sample for a search for terrestrial planets
• MagAO Imaging of Long-period Objects (MILO). I. A Benchmark M Dwarf Companion Exciting a Massive Planet around the Sun-like Star HD 7449
• The Observed Distribution of Spectroscopic Binaries from the Anglo-Australian Planet Search
• HAZMAT. VIII. A Spectroscopic Analysis of the Ultraviolet Evolution of K Stars: Additional Evidence for K Dwarf Rotational Stalling in the First Gigayear
• TOI-1416: A system with a super-Earth planet with a 1.07d period
• Imaging radial velocity planets with SPHERE
• TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to have Originated from High-Eccentricity Migration
• Collisional modelling of the debris disc around HIP 17439
• The Prototypical Young L/T-Transition Dwarf HD 203030B Likely Has Planetary Mass
• TOI-1268b: the youngest, hot, Saturn-mass transiting exoplanet
• An extremely low-density and temperate giant exoplanet
• Coronal mass ejections and type II radio emission variability during a magnetic cycle on the solar-type star $\epsilon$ Eridani
• Short Gas Dissipation Timescales: Diskless Stars in Taurus and Chamaeleon I
• Searching for new solar twins: The Inti survey for the Northern Sky
• Testing the Limits of Precise Subgiant Characterization with APOGEE and Gaia: Opening a Window to Unprecedented Astrophysical Studies
• Characterization of a set of small planets with TESS and CHEOPS and an analysis of photometric performance
• Planetesimals Around Stars with TESS (PAST): I. Transient Dimming of a Binary Solar Analog at the End of the Planet Accretion Era
• A nonextensive approach to the stellar rotational evolution I. F and G type stars
• The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one
• Deep GALEX UV Survey of the Kepler Field I: Point Source Catalog
• Non-Gaussian Error Distribution of ${}^7\mathrm{Li}$ Abundance Measurements
• An Integrated Analysis with Predictions on the Architecture of the tau Ceti Planetary System, Including a Habitable Zone Planet
• Signatures of magnetic activity: On the relation between stellar properties and p-mode frequency variations
• Quest for finding the lost siblings of the Sun
• The Factory and the Beehive. IV. A Comprehensive Study of the Rotation X-ray Activity Relation in Praesepe and the Hyades
• Large Interferometer For Exoplanets (LIFE). X. Detectability of currently known exoplanets and synergies with future IR/O/UV reflected-starlight imaging missions
• MADYS: the Manifold Age Determination for Young Stars
• Fundamental properties of Kepler and CoRoT targets -- IV. Masses and radii from frequencies of minimum $\Delta \nu$ and their implications
• Modeling stellar Ca II H & K emission variations. I. Effect of inclination on the S-index
• A Tidal Origin for a 3-body Resonance in Kepler-221
• Dynamical Masses of Young Stars II: Young Taurus Binaries Hubble~4, FF~Tau, and HP~Tau/G3
• Rotation and magnetic activity evolution of Sun-like stars
• A Distance-Limited Imaging Survey of Sub-Stellar Companions to Solar Neighborhood Stars
• Stellar Chromospheric Activity Database of Solar-like Stars Based on the LAMOST Low-Resolution Spectroscopic Survey
• The SOPHIE search for northern extrasolar planets-XIX. A system including a cold sub-Neptune potentially transiting a V = 6.5 star HD88986
• The ancient main-sequence solar proxy HIP 102152 unveils the activity and rotational fate of our Sun
• Potential multi-component structure of the debris disk around HIP 17439 revealed by Herschel/DUNES
• A Young, Low-Density Stellar Stream in the Milky Way Disk: Theia 456
• HD 4915: A Maunder Minimum Candidate
• Expected performances of the Characterising Exoplanet Satellite (CHEOPS) II. The CHEOPS simulator
• G 112-29 (=NLTT 18149), a Very Wide Companion to GJ 282 AB with a Common Proper Motion, Common Parallax, Common Radial Velocity and Common Age
• The Sun in Time: Age, Rotation, and Magnetic Activity of the Sun and Solar-type Stars and Effects on Hosted Planets
• SAGE: A tool to constrain impacts of stellar activity on transmission spectroscopy
• HD 20329b: An ultra-short-period planet around a solar-type star found by TESS
• The HD 93963 A transiting system: A 1.04d super-Earth and a 3.65 d sub-Neptune discovered by TESS and CHEOPS
• Direct-imaging Discovery of a Substellar Companion Orbiting the Accelerating Variable Star, HIP 39017
• No "Maunder minimum" candidates in M67: mitigating interstellar contamination of chromospheric emission lines
• The early instability scenario: Mars' mass explained by Jupiter's orbit
• The Epoch of Giant Planet Migration Planet Search Program. I. Near-Infrared Radial Velocity Jitter of Young Sun-like Stars
• Benchmark cool companions: Ages and abundances for the PZ Tel system
• The transmission spectrum of WASP-17 b from the optical to the near-infrared wavelengths: combining STIS, WFC3 and IRAC datasets
• Expanding the frontiers of cool-dwarf asteroseismology with ESPRESSO. Detection of solar-like oscillations in the K5 dwarf $\epsilon$ Indi
• TOI-1842b: A Transiting Warm Saturn Undergoing Re-Inflation around an Evolving Subgiant
• The Effect of Magnetic Variability on Stellar Angular Momentum Loss II: The Sun, 61 Cygni A, $\epsilon$ Eridani, $\xi$ Bootis A and $\tau$ Bootis A
• HD207897 b: A dense sub-Neptune transiting a nearby and bright K-type star
• TOI-179: a young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit
• TOI-1075 b: A Dense, Massive, Ultra-Short Period Hot Super-Earth Straddling the Radius Gap
• Very Low-mass Stellar and Substellar Companions to Solar-like Stars from MARVELS II: A Short-period Companion Orbiting an F Star with Evidence of a Stellar Tertiary And Significant Mutual Inclination
• A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654
• Deconvolving the HD 81809 binary: rotational and activity evidence for a subgiant with a Sun-like cycle
• HD 38858: a solar type star with a $\sim$10.8 yr activity cycle. Searching for Balmer and metallic line variations
• Spectroscopic Survey of G and K Dwarfs in the Hipparcos Catalog. I. Comparison between the Hipparcos and Photometric Parallaxes
• So close, so different: characterization of the K2-36 planetary system with HARPS-N
• The AMBRE Project: searching for the closest solar siblings
• Discovery of a White Dwarf Companion to HD 159062
• A massive hot Jupiter orbiting a metal-rich early-M star discovered in the TESS full frame images
• A warm super-Neptune around the G-dwarf star TOI-1710 revealed with TESS, SOPHIE and HARPS-N
• A Knee-Point in the Rotation-Activity Scaling of Late-type Stars with a Connection to Dynamo Transitions
• K2-263b: A 50-day period sub-Neptune with a mass measurement using HARPS-N
• Are Starspots and Plages Co-Located on Active G and K Stars?
• The TRENDS High-Contrast Imaging Survey. VII. Discovery of a Nearby Sirius-like White Dwarf System (HD 169889)
• NGTS clusters survey -- III: A low-mass eclipsing binary in the Blanco 1 open cluster spanning the fully convective boundary
• EMISSA -- Exploring Millimeter Indicators of Solar-Stellar Activity I. The Initial mm-cm Main Sequence Star Sample
• The HARPS search for southern extra-solar planets. XLVI: 12 super-Earths around the solar type stars HD39194, HD93385, HD96700, HD154088, and HD189567
• TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star
• Angular Momentum Evolution of Young Stars in the Nearby Scorpius-Centaurus OB Association
• Rotation period distribution of CoRoT and Kepler Sun-like stars
• Benchmarking Substellar Evolutionary Models Using New Age Estimates for HD 4747 B and HD 19467 B
• Hot planets around cool stars -- two short-period mini-Neptunes transiting the late K-dwarf TOI-1260
• The HARPS search for southern extra-solar planets. XXIV. Companions to HD 85390, HD 90156 and HD 103197: A Neptune analogue and two intermediate mass planets
• Activity time series of old stars from late F to early K. V. Effect on exoplanet detectability with high-precision astrometry
• Star-planet tidal interaction and the limits of gyrochronology
• The GALAH Survey: Lithium-strong KM dwarfs
• The GAPS Programme with HARPS-N at TNG XVIII. Two new giant planets around the metal-poor stars HD 220197 and HD 233832
• An Age Constraint for the Very Low-Mass Stellar/Brown Dwarf Binary 2MASS J03202839-0446358AB
• On the origin of the dichotomy of stellar activity cycles
• On the Ages of Planetary Systems with Mean Motion Resonances
• A new estimation of astrometric exoplanet detection limits in the habitable zone around nearby stars
• Rotation of Kepler field dwarfs and sub giants: Spectroscopic $v\sin I$ from APOGEE
• The K2 M67 Study: Establishing the Limits of Stellar Rotation Period Measurements in M67 with K2 Campaign 5 Data
• From the stellar properties of HD219134 to the internal compositions of its transiting exoplanets
• Activity time series of old stars from late F to early K VI. Exoplanet mass characterisation and detectability in radial velocity
• The HARPS search for southern extra-solar planets XL. Searching for Neptunes around metal-poor stars
• Stellar chromospheric activities revealed from the LAMOST-K2 time-domain survey
• The big sibling of AU Mic: a cold dust-rich debris disk around CP-72 2713 in the $\beta$ Pic moving group
• Project 1640 Observations of Brown Dwarf GJ 758 B: Near-Infrared Spectrum and Atmospheric Modeling
• A Combined Chandra and LAMOST Study of Stellar Activity
• Very Low-mass Stellar and Substellar Companions to Solar-like Stars from Marvels III: A Short-Period Brown Dwarf Candidate Around An Active G0Iv Subgiant
• Kepler main-sequence solar-like stars: surface rotation and magnetic-activity evolution
• The GAPS Programme with HARPS-N@TNG XII: Characterization of the planetary system around HD108874
• A Probabilistic Case For A Large Missing Carbon Sink On Mars After 3.5 Billion Years Ago
• A dense mini-Neptune orbiting the bright young star HD 18599
• A collage of small planets from the Lick Carnegie Exoplanet Survey : Exploring the super-Earth and sub-Neptune mass regime
• The $\text{Gaia}$ Ultra-Cool Dwarf Sample $-$ III: Seven new multiple systems containing at least one $\text{Gaia}$ DR2 ultra-cool dwarf
• Closeby Habitable Exoplanet Survey (CHES). I. Astrometric Noise and Planetary Detection Efficiency due to Stellar Spots and Faculae
• Stellar Parameters for HD 69830, a Nearby Star with Three Neptune Mass Planets and an Asteroid Belt
• Further evidence of the link between activity and metallicity using the flaring properties of stars in the Kepler field
• Detection of 2$-$4 GHz Continuum Emission from $\epsilon$ Eridani
• TESS and CHEOPS Discover Two Warm Sub-Neptunes Transiting the Bright K-dwarf HD 15906
• Are the gyro-ages of field stars underestimated?
• Is [Y/Mg] a Reliable Age Diagnostic for FGK Stars?
• From CoRoT 102899501 to the Sun. A time evolution model of chromospheric activity on the main sequence
• Implications of the spectroscopic abundances in α Centauri A and B
• Highly structured inner planetary system debris around the intermediate age Sun-like star TYC 8830 410 1
• A detailed understanding of the rotation-activity relationship using the 300 Myr old open cluster NGC 3532
• Component masses of young, wide, non-magnetic white dwarf binaries in the SDSS DR7
• On the characterization of GJ 504: a magnetically active planet-host star observed by the Transiting Exoplanet Survey Satellite (TESS)
• Wide binaries demonstrate the consistency of rotational evolution between open cluster and field stars
• The California-Kepler Survey. XI. A Survey of Chromospheric Activity Through the Lens of Precise Stellar Properties
• Combining high contrast imaging and radial velocities to constrain the planetary architecture of nearby stars
• Solar-cycle irradiance variations over the last four billion years
• WASP-157b, a Transiting Hot Jupiter Observed with K2
• Coronal X-ray emission and planetary irradiation in HD 209458
• Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs
• On the Evolution of Rotational Modulation Amplitude in Solar-mass Main-sequence Stars
• Stellar winds as a mechanism to tilt the spin axes of Sun-like stars
• Examining the Rotation Period Distribution of the 40 Myr Tucana-Horologium Association with TESS
• A Crystallizing White Dwarf in a Sirius-Like Quadruple System
• TOI-1736 and TOI-2141: two systems including sub-Neptunes around solar analogs revealed by TESS and SOPHIE
• Significant mutual inclinations between the stellar spin and the orbits of both planets in the HAT-P-11 system
• A spectroscopically confirmed Gaia-selected sample of 318 new young stars within $\sim$200 pc
• TOI-1296b and TOI-1298b observed with TESS and SOPHIE: Two hot Saturn-mass exoplanets with different densities around metal-rich stars
• Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843
• Estimating the ages of open star clusters from properties of their extended tidal tails
• The SHARDDS survey: limits on planet occurrence rates based on point sources analysis via the Auto-RSM framework
• SCExAO and Keck Direct Imaging Discovery of a Low-Mass Companion Around the Accelerating F5 Star HIP 5319
• Revisiting the HD 21749 Planetary System with Stellar Activity Modeling
• A Framework for Relative Biosignature Yields from Future Direct Imaging Missions
• Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS
• The GAPS programme at TNG XXXIV. Activity-rotation, flux-flux relationships, and active region evolution through stellar age
• The putative old, nearby cluster Lodén 1 does not exist
• Hiding Dust Around $\epsilon$ Eridani
• The GAPS Programme at TNG -- XXIV. An eccentric Neptune-mass planet near the inner edge of the BD-11 4672 habitable zone
• Charting nearby stellar systems: The intensity of Galactic cosmic rays for a sample of solar-type stars
• Searching for new young stars in the northern hemisphere: The Pisces Moving Group
• Stellar obliquities of eight close-in gas giant exoplanets
• Characterization of seven transiting systems including four warm Jupiters from SOPHIE and TESS
• Solar-Type Activity: Epochs of Cycle Formation
• Tidally Heated Exomoons around $\epsilon$ Eridani b: Observability and prospects for characterization
• A Geologically Robust Procedure For Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen is an Earth-Like Biosignature
• Determination of Starspot Covering Fraction as a function of Stellar Age from Observational Data
• Revisiting the cycle-rotation connection for late-type stars
• The breakdown of current gyrochronology as evidenced by old coeval stars
• Minute-cadence Observations of the LAMOST Fields with the TMTS: III. Statistic Study of the Flare Stars from the First Two Years
• A study of Pulsation & Rotation in a sample of A-K type stars in the Kepler field
• Nature or nurture of coplanar Tatooines: the aligned circumbinary Kuiper belt analogue around HD 131511
• Fine Structure of the Age-Chromospheric Activity Relation in Solar-Type Stars: II. H$\alpha$ Line
• Sun-like Stars Shed Light on Solar Climate Forcing
• Stellar activity with LAMOST. III. Temporal variability pattern in Pleiades, Praesepe, and Hyades
• TOI-837 b: characterisation, formation and evolutionary history of an infant warm Saturn-mass planet
• Activity time series of old stars from late F to early K IV. Diagnosis from photometry
• TESS and HARPS reveal two sub-Neptunes around TOI 1062
• An Integrative Analysis of the Rich Planetary System of the Nearby Star e Eridani: Ideal Targets For Exoplanet Imaging and Biosignature Searches
• The cosmic waltz of Coma Berenices and Latyshev 2 (Group X). Membership, phase-space structure, mass, and energy distributions
• The Fundamental Stellar Parameters of FGK Stars in the SEEDS Survey
• A New Age-Activity Relation For Solar Analogs that Accounts for Metallicity
• Characterization of Exoplanet-Host Stars
• Limits on the presence of planets in systems with debris disks: HD 92945 and HD 107146
• A Catalog of Periodic Variables in Open Clusters M35 and NGC 2158
• TOI-712: a system of adolescent mini-Neptunes extending to the habitable zone
• Signature of spin-down stalling in stellar magnetic activity. The case of the open cluster NGC 6811
• ATREIDES I. Embarking on a trek across the exo-Neptunian landscape with the TOI-421 system
• Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion
• The K2 M67 Study: A Curiously Young Star in an Eclipsing Binary in an Old Open Cluster
• The multi-planet system TOI-421 -- A warm Neptune and a super puffy mini-Neptune transiting a G9 V star in a visual binary
• Stellar X-ray activity and habitability revealed by ROSAT sky survey
• HD 183579b: A Warm Sub-Neptune Transiting a Solar Twin Detected by TESS
• First Millimeter Flares Detected from Epsilon Eridani with ALMA
• The magnetic future of the Sun
• Change in activity character of coronae of low-mass stars of various spectral types
• The HARPS search for southern extra-solar planets. XLVII. Five Jupiter-mass planets in long-period orbits, one highly irradiated Neptune, one brown dwarf, and five stellar binaries
• Stellar magnetic activity and Star-Planet Interactions (invited review)
• Nature vs. nurture: a Bayesian framework for assessing apparent correlations between planetary orbital properties and stellar ages
• The GAPS programme at TNG LXIV: An inner eccentric sub-Neptune and an outer sub-Neptune-mass candidate around BD+00 444 (TOI-2443)
• A Homogeneous Catalog of Oscillating Solar-Type Stars Observed by the Kepler Mission and a New Amplitude Scaling Relation Including Chromospheric Activity
• Seismic Signatures of Stellar Magnetic Activity -- What Can We Expect from TESS?
• Bright Southern Variable Stars in the bRing Survey
• Clusters: age scales for stellar physics
• Exploring the short-term variability of H$\alpha$ and H$\beta$ emissions in a sample of M dwarfs
• Magnetic activity of the solar-like star HD 140538
• The Impact of Tidal Migration of Hot Jupiters on the Rotation of Sun-like Main-sequence Stars
• Characterization of debris disks observed with SPHERE
• The partial ionisation zone of heavy elements in F-stars: a study on how it correlates with rotation
• HATS-15 b and HATS-16 b: Two massive planets transiting old G dwarf stars
• Stellar Chromospheric Activity Database of Solar-like Stars Based on the LAMOST Low-Resolution Spectroscopic Survey: II. the bolometric and photospheric calibration
• Thirty-Three New Stellar Angular Diameters from the NPOI, and Nearly 180 NPOI Diameters as an Ensemble
• Physical properties and optical-infrared transmission spectrum of the giant planet XO-1b
• Contemporaneous Observations of $H\alpha$ Luminosities and Photometric Amplitudes for M Dwarfs
• A Monte Carlo Method for Evaluating Empirical Gyrochronology Models and its Application to Wide Binary Benchmarks
• Quiet Please: Detrending Radial Velocity Variations from Stellar Activity with a Physically Motivated Spot Model
• The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems
• A Low-mass, Pre-main-sequence Eclipsing Binary in the 40 Myr Columba Association -- Fundamental Stellar Parameters and Modeling the Effect of Star Spots
• Discovery of a cold giant planet and mass measurement of a hot super-Earth in the multi-planetary system WASP-132
• The Aligned Orbit of a Hot Jupiter around the M Dwarf TOI-4201
• Tidally-induced migration of TESS gas giants orbiting M dwarfs
• What is the mass of alpha Cen B b?
• H${}_{\alpha }$-activity and ages for stars in the SARG survey
• Planet Hunters TESS V: a planetary system around a binary star, including a mini-Neptune in the habitable zone
• The apparent absence of forward scattering in the HD 53143 debris disk
• Hubble Space Telescope Astrometry of the Metal-Poor Visual Binary $\mu$ Cassiopeiae: Dynamical Masses, Helium Content, and Age
• 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)
• Two neighbours of the ultra-short-period Earth-sized planet K2-157 b in the warm Neptunian savanna
• Ages for exoplanet host stars
• ExoplANNET: A deep learning algorithm to detect and identify planetary signals in radial velocity data
• A young hierarchical triple system harbouring a candidate debris disc
• Radii, masses, and transit-timing variations of the three-planet system orbiting the naked-eye star TOI-396
• The age of the Galaxy's thick disk
• The Rotation Period Distribution in the Young Open Cluster NGC 6709
• Age-Related Observations of Low Mass Pre-Main and Young Main Sequence Stars (Invited Review)
• The Young Solar Analogs Project: I. Spectroscopic and Photometric Methods and Multi-year Timescale Spectroscopic Results
• NGTS-21b: An Inflated Super-Jupiter Orbiting a Metal-poor K dwarf
• A magnitude-limited catalogue of unresolved white dwarf-main sequence binaries from Gaia DR3
• High Spatial Resolution Thermal-Infrared Spectroscopy with ALES: Resolved Spectra of the Benchmark Brown Dwarf Binary HD 130948BC
• NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b
• ${\zeta }^1+{\zeta }^2$ Reticuli binary system: A puzzling chromospheric activity pattern
• The Direct Mid-Infrared Detectability of Habitable-zone Exoplanets Around Nearby Stars
• Dynamical Masses and Ages of Sirius-like Systems
• The GAPS programme at TNG XLIII. A massive brown dwarf orbiting the active M dwarf TOI-5375
• Chandrasekhar's relation and the stellar rotation in the Kepler field
• Four ages of rotating stars in the rotation--activity relationship and gyrochronology
• A comprehensive study of the relations between the properties of planetary systems and the chemical compositions of their host stars
• The GAPS Programme at TNG. LXV. Precise density measurement of TOI-1430 b, a young planet with an evaporating atmosphere
• NGTS-EB-7, an eccentric, long-period, low-mass eclipsing binary
• Correlating Intrinsic Stellar Parameters with Mg II Self-Reversal Depths
• Unravelling the Period Gap using LAMOST Chromospheric Activity Indices
• Theoretical and Observational Evidence for Coriolis Effects in Coronal Magnetic Fields Via Direct Current Driven Flaring Events
• Modelling early-type stars in eclipsing binaries of open clusters: a new method for age determination from ratio of radii
• SEEDS direct imaging of the RV-detected companion to V450 Andromedae, and characterization of the system
• Obliquities of Exoplanet Host Stars from Precise Distances and Stellar Angular Diameters
• A multi-technique detection of an eccentric giant planet around accelerating star HD 57625
• FR Cnc Revisited: Photometry, Polarimetry and Spectroscopy
• Discovering planets with PLATO: Comparison of algorithms for stellar activity filtering
• Homogeneous planet masses I: Reanalysis of archival HARPS radial velocities
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. VI: Confirmation of a Long-Period Giant Planet Discovered with a Single TESS Transit
• Companion Mass Limits for 17 Binary Systems Obtained with Binary Differential Imaging and MagAO/Clio
• YOUNG Star detrending for Transiting Exoplanet Recovery (YOUNGSTER) II: Using Self-Organising Maps to explore young star variability in Sectors 1-13 of TESS data
• MAISTEP -- a new grid-based machine learning tool for inferring stellar parameters I. Ages of giant-planet host stars
• Low-mass and sub-stellar eclipsing binaries in stellar clusters
• Chromospheric Activity in 55 Cancri: I. Results from Theoretical Wave Studies
• A low-mass sub-Neptune planet transiting the bright active star HD 73344
• Planetary system architectures with low-mass inner planets: Direct imaging exploration of mature systems beyond 1 au
• A Transiting Super-Earth in the Radius Valley and An Outer Planet Candidate Around HD 307842
• Investigating stellar variability in the open cluster region NGC 381
• Optimal frequency-domain analysis for spacecraft time series: Introducing the missing-data multitaper power spectrum estimator
• Can Planets Exist in the Habitable Zone of 55~Cancri?
• TESS discovery of a super-Earth and two sub-Neptunes orbiting the bright, nearby, Sun-like star HD 22946
• The visual binary AG Tri in $\beta$ Pictoris Association: can a debris disc cause very different rotation periods of its components?
• Stellar rotation and its connection to the evolution of hydrogen-dominated atmospheres of exoplanets
• The triple system AT Mic AB + AU Mic in the beta Pictoris Association
• GTC/CanariCam deep mid-infrared imaging survey of northern stars within 5 pc
• SAFARI I: A SPHERE discovery of a super metal-rich M dwarf companion to the star HD 86006
• How accurately can we age-date solar-type dwarfs using activity/rotation diagnostics?
• The Evolution of the Solar-Stellar Activity
• TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS
• Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES
• X-ray Activity from Different Types of Stars
• The Solar Neighborhood L: Spectroscopic Discovery of K Dwarfs Younger Than 1 Gyr and New Binaries within 30 pc
• The 3D Galactocentric velocities of Kepler stars: marginalizing over missing RVs
• Validation of TOI-1221 b: A warm sub-Neptune exhibiting TTVs around a Sun-like star
• A Theoretical Study of the Outer Layers of Eight Kepler F-stars: The Relevance of Ionization Processes
• 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-2458 b: A mini-Neptune consistent with in situ hot Jupiter formation
• 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)
• Theoretical Studies of Comets in the 55 Cancri System
• Chromospheric Activity in 55 Cancri: II. Theoretical Wave Studies versus Observations
• JWST/MIRI Imaging of the Warm Dust Component of the Epsilon Eridani Debris Disk
• Flare frequency in M dwarfs belonging to Young Moving Groups
• TESS and HARPS-N unveil two planets transiting TOI-1453. A super-Earth and one of the lowest mass sub-Neptunes
• A sub-Neptune transiting the young field star HD 18599 at 40 pc
• Dynamical model for spindown of solar-type stars
• Using Magnetic Activity and Galactic Dynamics to Constrain the Ages of M Dwarfs
• Confronting compositional confusion through the characterisation of the sub-Neptune orbiting HD 77946
• A search for stellar siblings of the ~ 200 Myr TOI-251b planetary system
• Radial velocity analysis of stars with debris discs
• Magnetic field evolution in solar-type stars
• Asteroseismology of low-mass stars: the balance between partial ionisation and Coulomb interactions
• Constraints on HD113337 fundamental parameters and planetary system. Combining long-base visible interferometry, disk imaging and high-contrast imaging
• Nearly 30,000 late-type main-sequence stars with stellar age from LAMOST DR5
• Precise Masses and Orbits for Nine Radial Velocity Exoplanets
• The low mass companion of HIP 45314 (HR 3672)
• On the age of the magnetically active WW Psa and TX Psa members of the beta Pictoris association
• Characterizing Exoplanets for Assessing Their Potential Habitability
• Light Curve Modulation of Low Mass Stars in K2. I. Identification of 508 Fast Rotators in the Solar Neighborhood
• Stellar Characterization and a Chromospheric Activity Analysis of a K2 Sample of Planet-Hosting Stars
• A tidally detached super Neptune on a strongly misaligned retrograde orbit
• SDSS J100711.74+193056.2: A Candidate Common Motion Substellar Companion to the Nearest B-Type Star Regulus
• The Brown Dwarf Kinematics Project (BDKP). II. Details on Nine Wide Common Proper Motion Very Low-Mass Companions to Nearby Stars
• Continuous Habitable Zones: Using Bayesian Methods to Prioritize Characterization of Potentially Habitable Worlds
• 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)
• Discovery of a transiting hot water-world candidate orbiting Ross 176 with TESS and CARMENES
• Apache Point Observatory follow-up of ACcelerating Candidate ExopLanet host Stars (APO ACCELS): Ages for 166 Accelerating Stars in the Northern Hemisphere
• A study of the electrostatic properties of the interiors of low-mass stars: Possible implications for the observed rotational properties
• Orbital characterization of GJ1108A system, and comparison of dynamical mass with model-derived mass for resolved binaries
• TIC 172900988: A Transiting Circumbinary Planet Detected in One Sector of TESS Data
• SPORES-HWO. II. Companion Mass Limits and Updated Planet Properties for 120 Future Exoplanet Imaging Targets from 35 yr of Precise Doppler Monitoring
• A Mid-Infrared Search for Substellar Companions of Nearby Planet-Host Stars
• Gyrochronology and its usage for main sequence cool star ages
• On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg
• Tidal effects on stellar activity
• The long-term evolution of stellar activity
• The discontinuous nature of chromospheric activity evolution
• TESS unveils the optical phase curve of KELT-1b. Thermal emission and ellipsoidal variation from the brown dwarf companion, and activity from the star
• The GAPS Programme at TNG. LIII. New insights on the peculiar XO-2 system
• Searching for Faint Comoving Companions to the $\alpha$ Centauri system in the VVV Survey Infrared Images
• Towards age/rotation/magnetic activity relation with seismology
• Constraining stellar rotation and planetary atmospheric evolution of a dozen systems hosting sub-Neptunes and super-Earths
• Chromospheric emission of solar-type stars with asteroseismic ages
• The Solar Twin Planet Search: IV. The Sun as a typical rotator and evidence for a new rotational braking law for Sun-like stars
• A New Type of Exoplanet Direct Imaging Search: The SCExAO/CHARIS Survey of Accelerating Stars
• Improved characterization of the TOI-2141 system: a dense sub-Neptune with non-transiting inner and outer companions
• Nature vs. Nurture: Investigating the Effects of Measurement Uncertainties in the Assessment of Potential Trends Between Planetary and Stellar Properties
• Constraints on the Spindown of Fully-Convective M Dwarfs Using Wide Field Binaries
• Zeeman Doppler Imaging of $\tau$Ceti: The Weakest Magnetic Field Detected in a Sun-like Star
• Stellar multiplicity and stellar rotation: Insights from APOGEE
• TOI-1438: A rare system with two short-period sub-Neptunes and a tentative long-period Jupiter-like planet orbiting a K0V star
• The GAPS Programme at TNG LXVIII. Characterization of the outer substellar companion around HD 72659 with a multi-technique approach
• Role of non-thermal processes in the quiescent and active millimeter spectrum of a young M dwarf
• TOI-333b: A Neptune Desert planet around a F7V star
• Interaction between Winds from Weak-lined T Tauri Stars with Exoplanetary Magnetospheres
• Sibling Sub-Neptunes Around Sibling M Dwarfs: TOI-521 and TOI-912
• StelNet: Hierarchical Neural Network for Automatic Inference in Stellar Characterization
• The GAPS Programme at the TNG: LXX. TOI-5734b: A hot sub-Neptune orbiting a relatively young K dwarf with an Earth-like density
• The TESS-Keck Survey. XI. Mass Measurements for Four Transiting sub-Neptunes orbiting K dwarf TOI-1246
• The SOL $\text{(Solar Origin and Life)}$ Project: Detailed characterization of candidates for the ZAMS and Subgiant stages
• Atmospheric mass loss and stellar wind effects in young and old systems I: comparative 3D study of TOI-942 and TOI-421 systems
• Atmospheric mass loss and stellar wind effects in young and old systems II: Is TOI-942 the past of TOI-421 system?
• Resonant structures in exozodiacal clouds created by exo-Earths in the habitable zone of late-type stars
• Confronting Substellar Theoretical Models with Stellar Ages
• SpinSpotter: An Automated Algorithm for Identifying Stellar Rotation Periods With Autocorrelation Analysis