Giant planet occurrence within 0.2 AU of low-luminosity red giant branch stars with K2

Abstract

Every Sun-like star will eventually evolve into a red giant, a transition which can profoundly affect the evolution of a surrounding planetary system. The timescale of dynamical planet evolution and orbital decay has important implications for planetary habitability, as well as post-main sequence star and planet interaction, evolution and internal structure. Here, we investigate these effects by estimating planet occurrence around 2476 low-luminosity red giant branch (LLRGB) stars observed by the NASA K2 mission. We measure stellar masses and radii using asteroseismology, with median random uncertainties of 3.7% in mass and 2.2% in radius. We compare this planet population to the known population of planets around dwarf Sun-like stars, accounting for detection efficiency differences between the stellar populations. We find that 0.51% +/- 0.29% of LLRGB stars host planets larger than Jupiter with orbital periods less than 10 days, tentatively higher than main sequence stars hosting similar planets (0.15% +/- 0.06%). Our results suggest that the effects of stellar evolution on the occurrence of close-in planets larger than Jupiter is not significant until stars have begun ascending substantially up the red giant branch (>~ 5-6 Rsun).

arXiv comment15 pages, 10 figures, accepted for publication in ApJ, please email [email protected] for complete machine-readable version of Table 1

References in corpus (63)

• emcee: The MCMC Hammer
• Gaia Data Release 2. Summary of the contents and survey properties
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• The K2 Mission: Characterization and Early results
• Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler
• The false positive rate of Kepler and the occurrence of planets
• Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction
• Fast and scalable Gaussian process modeling with applications to astronomical time series
• A box-fitting algorithm in the search for periodic transits
• Prevalence of Earth-size planets orbiting Sun-like stars
• The evaporation valley in the Kepler planets
• Giant Planet Occurrence in the Stellar Mass-Metallicity Plane
• A Technique for Extracting Highly Precise Photometry for the Two-Wheeled Kepler Mission
• The Radial Velocity Experiment (RAVE): Fifth Data Release
• A new implementation of the infrared flux method using the 2MASS catalogue
• Giant Planets at Small Orbital Distances
• Testing Scaling Relations for Solar-Like Oscillations from the Main Sequence to Red Giants using Kepler Data
• Asteroseismic fundamental properties of solar-type stars observed by the NASA Kepler Mission
• Fundamental Properties of Kepler Planet-Candidate Host Stars using Asteroseismology
• The California-Kepler Survey. I. High Resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets
• Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2
• The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
• The Orbital Evolution of Gas Giant Planets around Giant Stars
• Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes
• Evidence for a Long-period Planet Orbiting Epsilon Eridani
• On Galactic density modeling in the presence of dust extinction
• Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity
• EVEREST: Pixel Level Decorrelation of K2 Light curves
• Asteroseismology of 16000 Kepler Red Giants: Global Oscillation Parameters, Masses, and Radii
• The relation between $\Delta \nu$ and ${\nu }_{max}$ for solar-like oscillations
• Hot Jupiters and Cool Stars
• Stellar population synthesis based modelling of the Milky Way using asteroseismology of 13000 Kepler red giants
• The Apparently Decaying Orbit of WASP-12
• The California-Kepler Survey. II. Precise Physical Properties of 2025 Kepler Planets and Their Host Stars
• Statistics of Long Period Gas Giant Planets in Known Planetary Systems
• 275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
• Stellar Diameters and Temperatures IV. Predicting Stellar Angular Diameters
• The asteroseismic potential of TESS: exoplanet-host stars
• Retired A Stars Revisited: An Updated Giant Planet Occurrence Rate as a Function of Stellar Metallicity and Mass
• Orbital decay of hot Jupiters due to nonlinear tidal dissipation within solar-type hosts
• Oscillating red giants observed during Campaign 1 of the Kepler K2 mission: New prospects for galactic archaeology
• Re-inflated Warm Jupiters Around Red Giants
• A Hot Saturn Orbiting An Oscillating Late Subgiant Discovered by TESS
• 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
• Detection of Stars within $\sim$0.8 arcseconds of Kepler Objects of Interest
• The K2 Galactic Archaeology Program Data Release 1: Asteroseismic results from Campaign 1
• A High False Positive Rate for Kepler Planetary Candidates of Giant Stars using Asterodensity Profiling
• Improving the Accuracy of Planet Occurrence Rates from Kepler using Approximate Bayesian Computation
• K2-97b: A (Re-?)Inflated Planet Orbiting a Red Giant Star
• Four new planets around giant stars and the mass-metallicity correlation of planet-hosting stars
• Deep Learning Classification in Asteroseismology Using an Improved Neural Network: Results on 15000 Kepler Red Giants and Applications to K2 and TESS Data
• The occurrence of planets and other substellar bodies around white dwarfs using K2
• The angular sizes of dwarf stars and subgiants - Non-linear surface brightness relations in BVRcIc from interferometry
• Stellar Metallicity of the Extended Disk and Distance of the Spiral Galaxy NGC 3621
• The K2-ESPRINT Project V: a short-period giant planet orbiting a subgiant star
• Do close-in giant planets orbiting evolved stars prefer eccentric orbits?
• Radial velocity confirmation of Kepler-91 b. Additional evidence of its planetary nature using the Calar Alto/CAFE instrument
• Asteroseismology of 1523 misclassified red giants using $\text{Kepler}$ data
• The late type eclipsing binaries in the Large Magellanic Cloud: catalogue of fundamental physical parameters
• Aldebaran b's temperate past uncovered in planet search data
• Predicting Granulation "Flicker" and Radial Velocity "Jitter" from Spectroscopic Observables
• The Bayesian Asteroseismology data Modeling pipeline and its application to $K2$ data

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• The Gaia-Kepler Stellar Properties Catalog. II. Planet Radius Demographics as a Function of Stellar Mass and Age
• Hot Jupiters: Origins, Structure, Atmospheres
• TESS Giants Transiting Giants II: The hottest Jupiters orbiting evolved stars
• Age-Dating Red Giant Stars Associated with Galactic Disk and Halo Substructures
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• $\text{TESS}$ Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant
• TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076
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• Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
• Constraining planet formation around 6$M_{\odot }$-8$M_{\odot }$ stars
• Beyond Gaia: Asteroseismic Distances of M giants using Ground-Based Transient Surveys
• TESS Giants Transiting Giants III: An eccentric warm Jupiter supports a period-eccentricity relation for giant planets transiting evolved stars
• Inflation of Migrated Hot Jupiters
• The K2 Asteroseismic KEYSTONE sample of Dwarf and Subgiant Solar-Like Oscillators. I: Data and Asteroseismic parameters
• The grain size survival threshold in one-planet post-main-sequence exoplanetary systems
• Revisiting the Red-giant Branch Hosts KOI-3886 and $\iota$ Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters
• TESS Giants Transiting Giants V -- Two hot Jupiters orbiting red-giant hosts
• Occurrence rate of hot Jupiters orbiting red giant stars
• Asteroid belt survival through stellar evolution: dependence on the stellar mass
• Spinning up a Daze: TESS Uncovers a Hot Jupiter orbiting the Rapid-Rotator TOI-778
• NGTS-13b: A hot 4.8 Jupiter-mass planet transiting a subgiant star
• TIC~257060897b: an inflated, low-density, hot-Jupiter transiting a rapidly evolving subgiant star
• Constraining the Planet Occurrence Rate around Halo Stars of Potentially Extragalactic Origin
• Planetary magnetosphere evolution around post-main-sequence stars
• A Close-in Planet Orbiting Giant Star HD 167768
• Spitzer phase curve observations and circulation models of the inflated ultra-hot Jupiter WASP-76b
• Search for giant planets in M67 V: a warm Jupiter orbiting the turn-off star S1429
• Asteroseismology of iota Draconis and Discovery of an Additional Long-Period Companion
• The tidal quality of the hot Jupiter WASP-12b
• HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit