EXOFAST: A fast exoplanetary fitting suite in IDL

Abstract

We present EXOFAST, a fast, robust suite of routines written in IDL which is designed to fit exoplanetary transits and radial velocity variations simultaneously or separately, and characterize the parameter uncertainties and covariances with a Differential Evolution Markov Chain Monte Carlo method. We describe how our code incorporates both data sets to simultaneously derive stellar parameters along with the transit and RV parameters, resulting in more self-consistent results on an example fit of the discovery data of HAT-P-3b that is well-mixed in under five minutes on a standard desktop computer. We describe in detail how our code works and outline ways in which the code can be extended to include additional effects or generalized for the characterization of other data sets -- including non-planetary data sets. We discuss the pros and cons of several common ways to parameterize eccentricity, highlight a subtle mistake in the implementation of MCMC that could bias the inferred eccentricity of intrinsically circular orbits to significantly non-zero results, discuss a problem with IDL's built-in random number generator in its application to large MCMC fits, and derive a method to analytically fit the linear and quadratic limb darkening coefficients of a planetary transit. Finally, we explain how we achieved improved accuracy and over a factor of 100 improvement in the execution time of the transit model calculation. Our entire source code, along with an easy-to-use online interface for several basic features of our transit and radial velocity fitting, are available online at http://astroutils.astronomy.ohio-state.edu/exofast .

Source code and online interface available at http://astroutils.astronomy.ohio-state.edu/exofast/ 26 pages, 8 figures, updated to match published version

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• A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)
• A Second Earth-Sized Planet in the Habitable Zone of the M Dwarf, TOI-700
• An Unusual Transmission Spectrum for the Sub-Saturn KELT-11b Suggestive of a Sub-Solar Water Abundance
• The Factory and the Beehive III: PTFEB132.707+19.810, a Low-Mass Eclipsing Binary in Praesepe Observed by PTF and K2
• TKS III: A Stellar Obliquity Measurement of TOI-1726 c
• The GAPS Programme at TNG LV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system
• The Curious Case of KOI 4: Confirming Kepler's First Exoplanet
• Transits of Known Planets Orbiting a Naked-Eye Star
• Magnetic Inflation and Stellar Mass I: Revised Parameters for the Component Stars of the Kepler Low-mass Eclipsing Binary T-Cyg1-12664
• Exoplanet Catalogues
• Hot Rocks Survey I : A possible shallow eclipse for LHS 1478 b
• 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
• Three Short Period Jupiters from TESS
• The Stellar Obliquity and the Long-period planet in the HAT-P-17 Exoplanetary System
• K2-231 b: A sub-Neptune exoplanet transiting a solar twin in Ruprecht 147
• Constraining planetary mass-loss rates by simulating Parker wind profiles with Cloudy
• Three Temperate Neptunes Orbiting Nearby Stars
• TOI-132 b: A short-period planet in the Neptune desert transiting a $V=11.3$ G-type star
• Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves
• How Low Can You Go? The Photoeccentric Effect for Planets of Various Sizes
• Qatar Exoplanet Survey : Qatar-3b, Qatar-4b and Qatar-5b
• An ultra-short period rocky super-Earth orbiting the G2-star HD 80653
• TOI-1231 b: A Temperate, Neptune-Sized Planet Transiting the Nearby M3 Dwarf NLTT 24399
• TOI-836: A super-Earth and mini-Neptune transiting a nearby K-dwarf
• The GAPS Programme at TNG XXXIII. HARPS-N detects multiple atomic species in emission from the dayside of KELT-20b
• Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths
• Refined physical properties and g',r',i',z',J,H,K transmission spectrum of WASP-23b from the ground
• Modeling Indications of Technology in Planetary Transit Light Curves -- Dark-side illumination
• Another Shipment of Six Short-Period Giant Planets from TESS
• An eclipsing double-line spectroscopic binary at the stellar/substellar boundary in the Upper Scorpius OB association
• A sub-Earth-mass planet orbiting Barnard's star
• Planet Hunters X: Searching for Nearby Neighbors of 75 Planet and Eclipsing Binary Candidates from the K2 Kepler Extended Mission
• Diffuser-assisted Photometric Follow-up Observations of the Neptune-sized Planets K2-28b and K2-100b
• KELT-14b and KELT-15b: An Independent Discovery of WASP-122b and a New Hot Jupiter
• $\text{TESS}$ Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant
• Detection of a very low mass star in an Eclipsing Binary system
• TESS Reveals HD 118203 b to be a Transiting Planet
• The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter
• Orbital and spectral characterization of the benchmark T-type brown dwarf HD 19467B
• Characterization of the Kepler-101 planetary system with HARPS-N. A hot super-Neptune with an Earth-sized low-mass companion
• DREAM: III.A helium survey in exoplanets on the edge of the hot Neptune desert with GIANO-B@TNG
• VLT/SPHERE astrometric confirmation and orbital analysis of the brown dwarf companion HR 2562 B
• An accurate mass determination for Kepler-1655b, a moderately-irradiated world with a significant volatile envelope
• Transiting Exoplanet Monitoring Project (TEMP). II. Refined System Parameters and Transit Timing Analysis of HAT-P-33b
• The TESS Grand Unified Hot Jupiter Survey. I. Ten TESS Planets
• TOI-532b: The Habitable-zone Planet Finder confirms a Large Super Neptune in the Neptune Desert orbiting a metal-rich M dwarf host
• MCMCI: A code to fully characterise an exoplanetary system
• Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP-40 and WASP-21 systems
• A dusty benchmark brown dwarf near the ice line of HD 72946
• Polarization in exoplanetary systems caused by transits, grazing transits, and starspots
• Two Hot Jupiters from K2 Campaign 4
• High-resolution emission spectroscopy retrievals of MASCARA-1b with CRIRES+: Strong detections of CO, H${}_2$O and Fe emission lines and a C$/$O consistent with solar
• Distinguishing Polar and Co-planar Circumbinary Exoplanets by Eclipsing Timing Variations
• Magnetic Inflation and Stellar Mass IV. Four Low-mass Kepler Eclipsing Binaries Consistent with Non-magnetic Stellar Evolutionary Models
• KELT-24b: A 5M${}_{\mathrm{J}}$ Planet on a 5.6 day Well-Aligned Orbit around the Young V=8.3 F-star HD 93148
• The Thermal Emission Spectrum of the Nearby Rocky Exoplanet LTT 1445A b from JWST MIRI/LRS
• Exoplanet Transits Registered at the Universidad de Monterrey Observatory. Part I: HAT-P-12b, HAT-P-13b, HAT-P-16b, HAT-P-23b and WASP-10b
• K2-19b and c are in a 3:2 Commensurability but out of Resonance: A Challenge to Planet Assembly by Convergent Migration
• Kepler-503b: An Object at the Hydrogen Burning Mass Limit Orbiting a Subgiant Star
• Directly Determined Properties of HD 97658 from Interferometric Observations
• NEID Rossiter-McLaughlin Measurement of TOI-1268b: A Young Warm Saturn Aligned with Its Cool Host Star
• K2-31b, a grazing transiting hot Jupiter on an 1.26-day orbit around a bright G7V star
• The TESS-Keck Survey. XV. Precise Properties of 108 TESS Planets and Their Host Stars
• Two Stars Two Ways: Confirming a Microlensing Binary Lens Solution with a Spectroscopic Measurement of the Orbit
• The GAPS Programme with HARPS-N at TNG. XXXI. The WASP-33 system revisited with HARPS-N
• The EBLM project. VII. Spin-orbit alignment for the circumbinary planet host EBLM J0608-59 A/TOI-1338 A
• Transiting Exoplanet Monitoring Project (TEMP). IV. Refined System Parameters, Transit Timing Variations and Orbital Stability of the Transiting Planetary System HAT-P-25
• TOI-1859b: A 64-Day Warm Jupiter on an Eccentric and Misaligned Orbit
• The GAPS Programme with HARPS-N@TNG VI: The Curious Case of TrES-4b
• An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b
• Transiting Exoplanet Monitoring Project (TEMP). I. Refined System Parameters and Transit Timing Variations of HAT-P-29b
• TOI-1416: A system with a super-Earth planet with a 1.07d period
• Hot Rocks Survey III: A deep eclipse for LHS 1140c and a new Gaussian process method to account for correlated noise in individual pixels
• Spectroscopic binaries in the Solar Twin Planet Search program: from substellar-mass to M dwarf companions
• Transit Timing Variations in the three-planet system: TOI-270
• Two warm, low-density sub-Jovian planets orbiting bright stars in K2 campaigns 13 and 14
• Testing the Limits of Precise Subgiant Characterization with APOGEE and Gaia: Opening a Window to Unprecedented Astrophysical Studies
• A Lack of Variability Between Repeated Spitzer Phase Curves of WASP-43b
• TOI-1259Ab -- a gas giant planet with 2.7% deep transits and a bound white dwarf companion
• Transit timing analysis of the exoplanet TrES-5 b. Possible existence of the exoplanet TrES-5 c
• The K2 and TESS Synergy. I. Updated Ephemerides and Parameters for K2-114, K2-167, K2-237, and K2-261
• Probing atmospheric escape through metastable He I triplet lines in 15 exoplanets observed with SPIRou
• Visual Analysis and Demographics of Kepler Transit Timing Variations
• PEXO: a global modeling framework for nanosecond timing, microsecond astrometry, and $\mu$m/s radial velocities
• The White Dwarf Binary Pathways Survey VII: Evidence for a bi-modal distribution of post mass transfer systems?
• A Simplified Photodynamical Model for Planetary Mass Determination in Low-Eccentricity Multi-Transiting Systems
• Resonance in the K2-19 system is at odds with its high reported eccentricities
• celmech: A Python package for celestial mechanics
• HADES RV Programme with HARPS-N at TNG VI. GJ 3942 b behind dominant activity signals
• Very Low Mass Stellar and Substellar Companions to Solar-Like Stars From MARVELS V: A Low Eccentricity Brown Dwarf from the Driest Part of the Desert, MARVELS-6b
• HIP 33609 b: An Eccentric Brown Dwarf Transiting a V=7.3 Rapidly Rotating B-Star
• High-resolution atmospheric retrievals of WASP-76b transmission spectroscopy with ESPRESSO: Monitoring limb asymmetries across multiple transits
• It takes two planets in resonance to tango around K2-146
• YETI observations of the young transiting planet candidate CVSO 30 b
• TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS
• Going back to basics: accelerating exoplanet transit modelling using Taylor-series expansion of the orbital motion
• Investigation of an orbital decay and global modeling of the planet WASP-43 b
• WASP-14 b: Transit Timing analysis of 19 light curves
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. I. Confirmation of an Eccentric, Cool Jupiter With an Interior Earth-sized Planet Orbiting Kepler-1514
• KELT-22Ab: A Massive Hot Jupiter Transiting a Near Solar Twin
• A deeper view of the CoRoT-9 planetary system. A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering
• A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654
• HD207897 b: A dense sub-Neptune transiting a nearby and bright K-type star
• KELT-12b: A $P\sim 5$ Day, Highly Inflated Hot Jupiter Transiting a Mildly Evolved Hot Star
• Beating stellar systematic error floors using transit-based densities
• TOI-179: a young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit
• A dynamical mass for GJ 463 b: A massive super-Jupiter companion beyond the snow line of a nearby M dwarf
• XO-2b: a hot Jupiter with a variable host star that potentially affects its measured transit depth
• The HADES RV Programme with HARPS-N at TNG XI. GJ 685 b: a warm super-Earth around an active M dwarf
• PlanetPack3: a radial-velocity and transit analysis tool for exoplanets
• Time Resolved Absorption of Six Chemical Species With MAROON-X Points to Strong Drag in the Ultra Hot Jupiter TOI-1518 b
• Homogeneous Transit Timing Analyses of Ten Exoplanet Systems
• HAT-TR-318-007: a double-lined M-dwarf binary with total secondary eclipses discovered by HATNet and observed by K2
• A Long Stream of Metal-Poor Cool Gas around a Massive Starburst Galaxy at z = 2.67
• Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Year, Highly Eccentric Orbit
• A Search for Lost Planets in the Kepler Multi-planet Systems and the Discovery of the Long-period, Neptune-sized Exoplanet Kepler-150 f
• No variations in transit times for Qatar-1 b
• K2-263b: A 50-day period sub-Neptune with a mass measurement using HARPS-N
• A warm super-Neptune around the G-dwarf star TOI-1710 revealed with TESS, SOPHIE and HARPS-N
• Pandora: A fast open-source exomoon transit detection algorithm
• TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star
• Probing Kepler's hottest small planets via homogeneous search and analysis of optical secondary eclipses and phase variations
• The peculiar chemical pattern of the WASP-160 binary system: signatures of planetary formation and evolution?
• Two Massive Jupiters in Eccentric Orbits from the TESS Full Frame Images
• The GAPS Programme with HARPS-N at TNG XVIII. Two new giant planets around the metal-poor stars HD 220197 and HD 233832
• Bayesian inference for orbital eccentricities
• KELT-18b: Puffy Planet, Hot Host, Probably Perturbed
• Using HARPS-N to characterise the long-period planets in the PH-2 and Kepler-103 systems
• Light Curve Analysis of Ground-Based Data from Exoplanets Transit Database
• A Reanalysis of the Composition of K2-106b: an Ultra-short Period Super-Mercury Candidate
• GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion
• Power of wavelets in analyses of transit and phase curves in the presence of stellar variability and instrumental noise. II. Accuracy of the transit parameters
• TOI-954 b and K2-329 b: Short-Period Saturn-Mass Planets that Test whether Irradiation Leads to Inflation
• Two planetary systems with transiting Earth-size and super-Earth planets orbiting late-type dwarf stars
• Qatar Exoplanet Survey: Qatar-6b -- a grazing transiting hot Jupiter
• MASCARA-3b: A hot Jupiter transiting a bright F7 star in an aligned orbit
• KOI-1003: A new spotted, eclipsing RS CVn binary in the Kepler field
• The GAPS Programme with HARPS-N@TNG XII: Characterization of the planetary system around HD108874
• Transiting exoplanets with the Mid-InfraRed Instrument on board the James Webb Space Telescope: From simulations to observations
• Hyades Member K2-136c: The Smallest Planet in an Open Cluster with a Precisely Measured Mass
• A Cautionary Tale: MARVELS Brown Dwarf Candidate Reveals Itself To Be A Very Long Period, Highly Eccentric Spectroscopic Stellar Binary
• Probing Transit Timing Variations of Three Hot-Jupiters: HATP-36b, HATP-56b, and WASP-52b
• Photometric Follow-up Transit (Primary Eclipse) Observations of WASP-43 b and TrES-3b and A Study on Their Transit Timing Variations
• First radial velocity results from the MINiature Exoplanet Radial Velocity Array (MINERVA)
• Implicit biases in transit models using stellar pseudo-density
• The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits
• Revisiting the Transit Timing Variations in the TrES-3 and Qatar-1 systems with TESS data
• Allesfitter: Flexible Star and Exoplanet Inference From Photometry and Radial Velocity
• 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
• First exoplanet transit observation with the Stratospheric Observatory for Infrared Astronomy: Confirmation of Rayleigh scattering in HD 189733 b with HIPO
• KELT-23Ab: A Hot Jupiter Transiting a Near-Solar Twin Close to the TESS and JWST Continuous Viewing Zones
• A celestial matryoshka: Dynamical and spectroscopic analysis of the Albireo system
• A Jupiter-mass planet around the K0 giant HD 208897
• The K2 & TESS Synergy II: Revisiting 26 systems in the TESS Primary Mission
• TESS Timings of 31 Hot Jupiters with Ephemeris Uncertainties
• TESS Observations of the Hot Jupiter Exoplanet XO-6b: No Evidence of Transit Timing Variations
• The DEdicated MONitor of EXotransits (DEMONEX): Seven Transits of XO-4b
• A modified CoRoT detrend algorithm and the discovery of a new planetary companion
• Affordable echelle spectroscopy of the eccentric HAT-P-2, WASP-14 and XO-3 planetary systems with a sub-meter-class telescope
• The Value-Added Catalog of ASAS-SN Eclipsing Binaries III: Masses and Radii of Gaia Spectroscopic Binaries
• Multi-filter transit observations of HAT-P-3b and TrES-3b with multiple Northern Hemisphere telescopes
• A close-in puffy Neptune with hidden friends: The enigma of TOI 620
• Accurate modeling of grazing transits using umbrella sampling
• New approach for modeling of transiting exoplanets for arbitrary limb-darkening law
• Characterization of seven transiting systems including four warm Jupiters from SOPHIE and TESS
• Frequentist confidence intervals for orbits
• Project Solaris, a Global Network of Autonomous Observatories: Design, Commissioning, and First Science Results
• An old warm Jupiter orbiting the metal-poor G-dwarf TOI-5542
• The White Dwarf Binary Pathways Survey III: contamination from hierarchical triples containing a white dwarf
• Are There Transit Timing Variations for the Exoplanet Qatar-1b ?
• Greening of the Brown Dwarf Desert. EPIC 212036875 b -- a 51 M${}_{\mathrm{J}}$ object in a 5 day orbit around an F7 V star
• Non-Sinusoidal Transit Timing Variations for the Exoplanet HAT-P-12b
• Spinning up a Daze: TESS Uncovers a Hot Jupiter orbiting the Rapid-Rotator TOI-778
• Looking For Timing Variations in the Transits of 16 Exoplanets
• Characterization of the HD 108236 system with CHEOPS and TESS. Confirmation of a fifth transiting planet
• Untangling the Sources of Abundance Dispersion in Low-Metallicity Stars
• The GAPS Programme at TNG -- XXIV. An eccentric Neptune-mass planet near the inner edge of the BD-11 4672 habitable zone
• Multi-band characterization of the hot Jupiters: WASP-5b, WASP-44b and WASP-46b
• Thermal Emission from the hot Jupiter WASP-103b in J and Ks Bands
• Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars III: A High Mass & Low Envelope Fraction for the Warm Neptune K2-55b
• Nii: a Bayesian orbit retrieval code applied to differential astrometry
• Light-curve analysis of KOI 2700b: the second extrasolar planet with a comet-like tail
• Multiplexing Precision RVs: Searching for Close in Gas Giants in Open Clusters
• The GAPS Programme at TNG. XXX: Characterization of the low-density gas giant HAT-P-67 b with GIARPS
• Characterisation of TOI-406 as showcase of the THIRSTEE program: A 2-planet system straddling the M-dwarf density gap
• Prospects for detecting the Rossiter-McLaughlin effect of Earth-like planets: the test case of TRAPPIST-1b and c
• The Mass of the White Dwarf Companion in the Self-Lensing Binary KOI-3278: Einstein vs. Newton
• A highly mutually-inclined, compact warm-Jupiter system KOI-984 ?
• Improved Analysis of Clarke Exobelt Detectability
• Binary orbits from combined astrometric and spectroscopic data
• A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134
• Validation and Initial Characterization of the Long Period Planet Kepler-1654 b
• The GAPS programme at TNG LXIV: An inner eccentric sub-Neptune and an outer sub-Neptune-mass candidate around BD+00 444 (TOI-2443)
• SOPHIE velocimetry of Kepler transit candidates. XIX. The transiting temperate giant planet KOI-3680b
• Determination of mass and orbital parameters of a low-mass star HD 213597B
• TOI-1696 and TOI-2136: Constraining the Masses of Two Mini-Neptunes with HPF
• New perspectives on MASCARA-1b: A combined analysis of pre- and post-eclipse emission data using CRIRES+
• TOI-5108 b and TOI 5786 b: Two transiting sub-Saturns detected and characterized with TESS, MaHPS and SOPHIE
• APOSTLE: Longterm Transit Monitoring and Stability Analysis of XO-2b
• Determining Which Binary Component Hosts the TESS Transiting Planet
• A Low-mass, Pre-main-sequence Eclipsing Binary in the 40 Myr Columba Association -- Fundamental Stellar Parameters and Modeling the Effect of Star Spots
• Exploiting the transit timing capabilities of Ariel
• On the follow-up efforts of long-period transiting planet candidates detected with Gaia astrometry
• Revisiting the Full Sets of Orbital Parameters for the XO-3 System: No evidence for Temporal Variation of the Spin-Orbit Angle
• NGTS-13b: A hot 4.8 Jupiter-mass planet transiting a subgiant star
• HATS-15 b and HATS-16 b: Two massive planets transiting old G dwarf stars
• Time-resolved image polarimetry of Trappist-1 during planetary transits
• Fundamental properties of the pre-main sequence eclipsing stars of MML 53 and the mass of the tertiary
• The inflated, eccentric warm Jupiter TOI-4914 b orbiting a metal-poor star, and the hot Jupiters TOI-2714 b and TOI-2981 b
• TIC~257060897b: an inflated, low-density, hot-Jupiter transiting a rapidly evolving subgiant star
• Colorado Ultraviolet Transit Experiment Data Simulator
• Revised Properties and Dynamical History for the HD 17156 System
• HST Transmission Spectra of the Hot-Neptune HD 219666 b: Detection of Water and the Challenge of Constraining Both Water and Methane
• In-depth characterization of the Kepler-10 three-planet system with HARPS-N radial velocities and Kepler transit timing variations
• Detecting and Monitoring Tidal Dissipation of Hot Jupiters in the Era of SiTian
• 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)
• 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
• The EBLM project -- XIV. TESS light curves for eclipsing binaries with very low mass companions
• An asynchronous object-oriented approach to the automation of the 0.8-meter George Mason University campus telescope in Python
• NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b
• The CARMENES search for exoplanets around M dwarfs. A sub-Neptunian mass planet in the habitable zone of HN Lib
• An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b
• Tentative Evidence for Transit Timing Variations of WASP-161b
• TOI-858 B b: A hot Jupiter on a polar orbit in a loose binary
• TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment
• Kepler-102: Masses and Compositions for a Super-Earth and Sub-Neptune Orbiting an Active Star
• Numerical search for a potential planet sculpting the young disc of HD 115600
• Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System
• Refined Ephemeris for Four Hot Jupiters using Ground-Based and TESS Observations
• Simultaneous multicolour optical and near-IR transit photometry of GJ 1214b with SOFIA
• Kepler Bonus: Aperture Photometry Light Curves of EXBA Sources
• Model-independent exoplanet transit spectroscopy
• The effects of stellar gravity darkening on high-resolution transmission spectra
• Migration and Evolution of giant ExoPlanets (MEEP) II: Super-Jupiters and Lithium-rich Host Stars
• Transit timing variation analysis of the low-mass brown dwarf KELT-1 b
• Accurate and efficient photo-eccentric transit modeling
• TESS Unveils the Full Phase Curve of WASP-19b
• Comprehensive analysis of TESS Full Orbital Phase Curve of WASP-121b
• A Substellar Companion to a Hot Star in K2's Campaign 0 Field
• Spectroscopy of TOI-1259B -- an unpolluted white dwarf companion to an inflated warm Saturn
• CUTE Data Simulator and Reduction Pipeline
• Detection and characterisation of a 106-day transiting Jupiter : TOI-2449 b / NGTS-36 b
• Disentangling Blended K2 Photometry: Determining the Planetary Host Star
• Discovery of a Nearby Habitable Zone Super-Earth Candidate Amenable to Direct Imaging
• A transiting rocky super-Earth and a non-transiting sub-Neptune orbiting the M dwarf TOI-771
• Transit Timing Variations of Five Transiting Planets
• A tidally detached super Neptune on a strongly misaligned retrograde orbit
• A Pair of Dynamically Interacting Sub-Neptunes Around TOI-6054
• A differentiable N-body code for transit timing and dynamical modelling -- II. Photodynamics
• Methane on the temperate exo-Saturn TOI-199b
• Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate
• The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog
• Grazing, non-transiting disintegrating exoplanets observed with the planned Ariel space observatory -- A case study using Kepler-1520b
• TOI-3362b: A Proto-Hot Jupiter Undergoing High-Eccentricity Tidal Migration
• The dark and featureless surface of rocky exoplanet LHS 3844 b from JWST mid-infrared spectroscopy
• The RoPES project with HARPS and HARPS-N II. A third planet in the multi-planet system HD 176986
• TOI-1634 b: an Ultra-Short Period Keystone Planet Sitting Inside the M Dwarf Radius Valley
• Near-Infrared Transit Photometry of Extra-Solar Planet HAT-P-54b
• Period Study by the Transit Method with Ground-Based Observations
• A large sub-Neptune transiting the thick-disk M4V TOI-2406
• TOI-3757 b: A low density gas giant orbiting a solar-metallicity M dwarf
• Transit Timing Variations of the Sub-Saturn Exoplanet HAT-P-12b
• 5 Years of Defocused Observations of Exoplanet Transits with T100: Timing Perspective
• The GAPS Programme at TNG LXVIII. Characterization of the outer substellar companion around HD 72659 with a multi-technique approach
• Radius Study of Ten Transiting Hot Jupiter Exoplanets with Ground-Based Observations
• Exoplanet Research with the Stratospheric Observatory for Infrared Astronomy (SOFIA)
• Optimization Applied to Selected Exoplanets
• Improving exoplanet mass characterisation with Bayesian model selection using the Learned Harmonic Mean Estimator
• A Homogeneous Catalog of Rossiter-McLaughlin Systems: Distinct $e$-$\lambda$ Trends in Three Gas-Giant Mass Regimes
• The Observational Effects and Signatures of Tidally Distorted Solid Exoplanets
• Estimation of the Total Mass of 10 Exoplanets and their Host Stars Based on the Primary Transit Method
• The GAPS Programme at the TNG: LXX. TOI-5734b: A hot sub-Neptune orbiting a relatively young K dwarf with an Earth-like density
• A Uniform Search for Nearby Planetary Companions to Hot Jupiters in TESS Data Reveals Hot Jupiters are Still Lonely
• K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant
• Exploring Long-period Architectures: Four New Planet Candidates from Kepler with Periods >342 days
• Characterizing the WASP-4 system with TESS and radial velocity data: Constraints on the cause of the hot Jupiter's changing orbit and evidence of an outer planet
• Sibling Sub-Neptunes Around Sibling M Dwarfs: TOI-521 and TOI-912