Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2

Abstract

One bottleneck for the exploitation of data from the $Kepler$ mission for stellar astrophysics and exoplanet research has been the lack of precise radii and evolutionary states for most of the observed stars. We report revised radii of 177,911 $Kepler$ stars derived by combining parallaxes from $Gaia$ Data Release 2 with the DR25 $Kepler$ Stellar Properties Catalog. The median radius precision is $\approx$ 8%, a typical improvement by a factor of 4-5 over previous estimates for typical $Kepler$ stars. We find that $\approx$ 67% ($\approx$ 120,000) of all $Kepler$ targets are main-sequence stars, $\approx$ 21% ($\approx$ 37,000) are subgiants, and $\approx$ 12% ($\approx$ 21,000) are red giants, demonstrating that subgiant contamination is less severe than some previous estimates and that Kepler targets are mostly main-sequence stars. Using the revised stellar radii, we recalculate the radii for 2123 confirmed and 1922 candidate exoplanets. We confirm the presence of a gap in the radius distribution of small, close-in planets, but find that the gap is mostly limited to incident fluxes $>$ 200$F_{\oplus }$ and its location may be at a slightly larger radius (closer to $\approx$ 2$R_{\oplus }$) when compared to previous results. Further, we find several confirmed exoplanets occupying a previously-described "hot super-Earth desert" at high irradiance, show the relation between gas-giant planet radius and incident flux, and establish a bona-fide sample of eight confirmed planets and 30 planet candidates with $R_{\mathrm{p}}$ $<$ 2$R_{\oplus }$ in circumstellar "habitable zones" (incident fluxes between 0.25--1.50 $F_{\oplus }$). The results presented here demonstrate the potential for transformative characterization of stellar and exoplanet populations using $Gaia$ data.

arXiv comment17 pages, 10 figures, 2 tables. Accepted for publication in ApJ. Electronic versions of Tables 1 & 2 are available as ancillary files (sidebar on the right). For a brief video explaining this paper, see https://youtu.be/RmzkKjtaVf4

References in corpus (76)

• Astropy: A Community Python Package for Astronomy
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
• The California-Kepler Survey. III. A Gap in the Radius Distribution of Small Planets
• Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler
• The NASA Exoplanet Archive: Data and Tools for Exoplanet Research
• Kepler Input Catalog: Photometric Calibration and Stellar Classification
• Kepler planets: a tale of evaporation
• The evaporation valley in the Kepler planets
• Rotation Periods of 34,030 Kepler Main-Sequence Stars: The Full Autocorrelation Sample
• How to Constrain Your M Dwarf: measuring effective temperature, bolometric luminosity, mass, and radius
• The Occurrence Rate of Small Planets around Small Stars
• The Role of Core Mass in Controlling Evaporation: the Kepler Radius Distribution and the Kepler-36 Density Dichotomy
• Core-powered mass loss and the radius distribution of small exoplanets
• Estimating distances from parallaxes
• Revised Stellar Properties of Kepler Targets for the Quarter 1-16 Transit Detection Run
• A Three-Dimensional Map of Milky-Way Dust
• Galactic Reddening in 3D from Stellar Photometry - An Improved Map
• Gaia broad band photometry
• Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25
• How Thermal Evolution and Mass Loss Sculpt Populations of Super-Earths and Sub-Neptunes: Application to the Kepler-11 System and Beyond
• Asteroseismic fundamental properties of solar-type stars observed by the NASA Kepler Mission
• Terrestrial Planet Occurrence Rates for the Kepler GK Dwarf Sample
• Fundamental Properties of Kepler Planet-Candidate Host Stars using Asteroseismology
• The Kepler Catalog of Stellar Flares
• Improved spectroscopic parameters for transiting planet hosts
• The California-Kepler Survey. I. High Resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets
• Selection, Prioritization, and Characteristics of Kepler Target Stars
• The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
• Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
• Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run
• Super-Earth Atmospheres: Self-Consistent Gas Accretion and Retention
• A Revised Effective Temperature Scale for the Kepler Input Catalog
• Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes
• Compositional imprints in density-distance-time: a rocky composition for close-in low-mass exoplanets from the location of the valley of evaporation
• SOPHIE velocimetry of Kepler transit candidates XVII. The physical properties of giant exoplanets within 400 days of period
• On Galactic density modeling in the presence of dust extinction
• Hot super-Earths stripped by their host stars
• Asteroseismic classification of stellar populations among 13000 red giants observed by Kepler
• Interstellar Extinction Law in the J, H, and Ks Bands toward the Galactic Center
• Lack of Inflated Radii for Kepler Giant Planet Candidates Receiving Modest Stellar Irradiation
• Characterization of the power excess of solar-like oscillations in red giants with Kepler
• On the Radii of Close-in Giant Planets
• Atmospheres of low-mass planets: the "boil-off"
• On the Anomalous Radii of the Transiting Extrasolar Planets
• They are Small Worlds After All: Revised Properties of Kepler M Dwarf Stars and their Planets
• The California-Kepler Survey. II. Precise Physical Properties of 2025 Kepler Planets and Their Host Stars
• Born Dry in the Photo-Evaporation Desert: Kepler's Ultra-Short-Period Planets Formed Water-Poor
• Estimating distances from parallaxes. II. Performance of Bayesian distance estimators on a Gaia-like catalogue
• A Catalog of Kepler Habitable Zone Exoplanet Candidates
• LAMOST observations in the Kepler field. Database of low-resolution spectra
• Zodiacal Exoplanets in Time (ZEIT) IV: seven transiting planets in the Praesepe cluster
• Robotic Laser-Adaptive-Optics Imaging of 715 Kepler Exoplanet Candidates using Robo-AO
• An observational correlation between stellar brightness variations and surface gravity
• Hot-Jupiters and hot-Neptunes: a common origin?
• The Metallicities of Stars With and Without Transiting Planets
• The Exoplanet Eccentricity Distribution from Kepler Planet Candidates
• Characterisation of red-giant stars in the public Kepler data
• Global asteroseismic properties of solar-like oscillations observed by Kepler : A comparison of complementary analysis methods
• Spectroscopy of Faint Kepler Mission Exoplanet Candidate Host Stars
• On the Metallicities of Kepler Stars
• Re-inflated Warm Jupiters Around Red Giants
• LAMOST telescope reveals that Neptunian cousins of hot Jupiters are mostly single offspring of stars that are rich in heavy elements
• Radial Velocity Observations and Light Curve Noise Modeling Confirm That Kepler-91b is a Giant Planet Orbiting a Giant Star
• Seeing double with K2: Testing re-inflation with two remarkably similar planets around red giant branch stars
• A High False Positive Rate for Kepler Planetary Candidates of Giant Stars using Asterodensity Profiling
• Objects in Kepler's Mirror May be Larger Than They Appear: Bias and Selection Effects in Transiting Planet Surveys
• K2-97b: A (Re-?)Inflated Planet Orbiting a Red Giant Star
• The Equilibrium Temperature of Planets in Elliptical Orbits
• Accurate Gravities of F, G, and K stars from High Resolution Spectra Without External Constraints
• Survival of a planet in short-period Neptunian desert under effect of photo-evaporation
• Robo-AO Kepler Survey IV: the effect of nearby stars on 3857 planetary candidate systems
• The Eccentricity Distribution of Short-Period Planet Candidates Detected by Kepler in Occultation
• Identifying Young $Kepler$ Planet Host Stars from Keck-HIRES Spectra of Lithium
• Systematics-insensitive periodic signal search with K2
• Kepler's Earth-like Planets Should Not Be Confirmed Without Independent Detection: The Case of Kepler-452b

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• The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
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• Microarcsecond Astrometry: Science Highlights from Gaia
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• The Exoplanet Population Observation Simulator. II -- Population Synthesis in the Era of Kepler
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• Constraints on the mass and atmospheric composition and evolution of the low-density young planet DS Tuc A b
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• Precise mass and radius of a transiting super-Earth planet orbiting the M dwarf TOI-1235: a planet in the radius gap?
• 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
• A Closer Look at Exoplanet Occurrence Rates: Considering the Multiplicity of Stars Without Detected Planets
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• Prospects of Finding Detached Black Hole-Star Binaries with TESS
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• An unusually low-density super-Earth transiting the bright early-type M-dwarf GJ 1018 (TOI-244)
• K2-264: A transiting multi-planet system in the Praesepe open cluster
• Caught in the Act: Core-powered Mass-loss Predictions for Observing Atmospheric Escape
• Revisiting the Long-Period Transiting Planets from Kepler
• CHES: a space-borne astrometric mission for the detection of habitable planets of the nearby solar-type stars
• New Perspectives on the Exoplanet Radius Gap from a Mathematica Tool and Visualized Water Equation of State
• The TESS-Keck Survey: Science Goals and Target Selection
• Accounting for Multiplicity in Calculating Eta Earth
• Exoplanet weather and climate regimes with clouds and thermal ionospheres: A model grid study in support of large-scale observational campaigns
• Rotation Distributions around the Kraft Break with TESS and Kepler: The Influences of Age, Metallicity, and Binarity
• The impact of stripped cores on the frequency of Earth-size planets in the habitable zone
• Predicting radial-velocity jitter induced by stellar oscillations based on Kepler data
• Formation of planetary systems by pebble accretion and migration: Hot super-Earth systems from breaking compact resonant chains
• Detections of solar-like oscillations in dwarfs and subgiants with Kepler DR25 short-cadence data
• The misaligned orbit of the Earth-sized planet Kepler-408b
• A New Method for Estimating Starspot Lifetimes Based on Autocorrelation Functions
• The intrinsic multiplicity distribution of exoplanets revealed from the radial velocity method
• Constraints on Stellar Flare Energy Ratios in the NUV and Optical From a Multiwavelength Study of GALEX and Kepler Flare Stars
• Modeling Kepler Eclipsing Binaries: Homogeneous Inference of Orbital & Stellar Properties
• Dynamical instabilities in systems of multiple short-period planets are likely driven by secular chaos: a case study of Kepler-102
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• Revised extinctions and radii for 1.5 million stars observed by APOGEE, GALAH, and RAVE
• TOI-1468: A system of two transiting planets, a super-Earth and a mini-Neptune, on opposite sides of the radius valley
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