Why is there a Dearth of Close-In Planets around Fast-Rotating stars?

Abstract

We propose that the reported dearth of $Kepler$ Objects of Interest (KOIs) with orbital periods $P_{\mathrm{orb}}\lesssim 2-3$days around stars with rotation periods $P_{\mathrm{rot}}\lesssim 5-10$days can be attributed to tidal ingestion of close-in planets by their host stars. We show that the planet distribution in this region of the $\log P_{\mathrm{orb}}-\log P_{\mathrm{rot}}$ plane is qualitatively reproduced with a model that incorporates tidal interaction and magnetic braking as well as the dependence on the stellar core--envelope coupling timescale. We demonstrate the consistency of this scenario with the inferred break in the $P_{\mathrm{orb}}$ distribution of close-in KOIs and point out a potentially testable prediction of this interpretation.

arXiv comment8 pages, 3 figures, accepted for publication in The Astrophysical Journal

References in corpus (30)

• Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler
• The false positive rate of Kepler and the occurrence of planets
• Kepler planets: a tale of evaporation
• Architecture and Dynamics of Kepler's Candidate Multiple Transiting Planet Systems
• Hot Stars with Hot Jupiters Have High Obliquities
• KEPLER's First Rocky Planet: Kepler-10b
• The Role of Core Mass in Controlling Evaporation: the Kepler Radius Distribution and the Kepler-36 Density Dichotomy
• Asteroseismic fundamental properties of solar-type stars observed by the NASA Kepler Mission
• Improved angular momentum evolution model for solar-like stars
• Tidal dissipation in rotating solar-type stars
• The Frequency of Hot Jupiters Orbiting Nearby Solar-Type Stars
• Orbital Evolution and Migration of Giant Planets: Modeling Extrasolar Planets
• On the tidal evolution of Hot Jupiters on inclined orbits
• The Kepler Cluster Study: Stellar Rotation in NGC6811
• Tidal Evolution of Close-in Planets
• Stellar Rotation Periods of the Kepler Objects of Interest: A Dearth of Close-in Planets around Fast Rotators
• The Exoplanet Census: A General Method, Applied to Kepler
• Observational Evidence for Tidal Destruction of Exoplanets
• Spin-Orbit Evolution Of Short-Period Planets
• Asteroseismology of the solar analogs 16 Cyg A & B from Kepler observations
• Rotation Periods, Variability Properties and Ages for Kepler Exoplanet Candidate Host Stars
• Weighing The Non-Transiting Hot Jupiter Tau BOO b
• A precise asteroseismic age and radius for the evolved Sun-like star KIC 11026764
• Empirical evidence for tidal evolution in transiting planetary systems
• Angular Momentum Transport In Solar-Type Stars: Testing the Timescale For Core-Envelope Coupling
• The Color-Period Diagram and Stellar Rotational Evolution - New Rotation Period Measurements in the Open Cluster M34
• Optical and X-ray Transients from Planet-Star Mergers
• Hot Jupiters and the evolution of stellar angular momentum
• Effect of the stellar spin history on the tidal evolution of close-in planets
• The Impact of Hot Jupiters on the Spin-down of their Host Stars

Cited by in corpus (43)

• The Occurrence and Architecture of Exoplanetary Systems
• The Apparently Decaying Orbit of WASP-12
• Orbital decay of hot Jupiters due to nonlinear tidal dissipation within solar-type hosts
• Hot Jupiters are Destroyed by Tides While Their Host Stars are on the Main Sequence
• Effect of the rotation and tidal dissipation history of stars on the evolution of close-in planets
• On the origin of the sub-Jovian desert in the orbital-period--planetary-mass plane
• The continuing search for evidence of tidal orbital decay of hot Jupiters
• Tidal dissipation in rotating low-mass stars and implications for the orbital evolution of close-in planets I. From the PMS to the RGB at solar metallicity
• From Hot Jupiters to Super-Earths via Roche Lobe Overflow
• Tidal Dissipation in WASP-12
• Evolution of angular-momentum-losing exoplanetary systems : Revisiting Darwin stability
• Are Tidal Effects Responsible for Exoplanetary Spin-Orbit Alignment?
• POET: A Model for (P)lanetary (O)rbital (E)volution due to (T)ides on Evolving Stars
• WASP-167b/KELT-13b: Joint discovery of a hot Jupiter transiting a rapidly-rotating F1V star
• The Dynamics of the Multi-planet System Orbiting Kepler-56
• WASP-4 is Accelerating Toward the Earth
• Discovery of XO-6b: a hot Jupiter transiting a fast rotating F5 star on an oblique orbit
• Evolution of star-planet systems under magnetic braking and tidal interaction
• A hot Jupiter for breakfast? --- Early stellar ingestion of planets may be common
• Stellar rotational periods in the planet hosting open cluster Praesepe
• Interplay of tidal evolution and stellar wind braking in the rotation of stars hosting massive close-in planets
• The CARMENES search for exoplanets around M dwarfs: Stable radial-velocity variations at the rotation period of AD~Leonis -- A test case study of current limitations to treating stellar activity
• Magnetic and tidal migration of close-in planets. Influence of secular evolution on their population
• Secular orbital evolution of planetary systems and the dearth of close-in planets around fast rotators
• AD Leonis: Radial velocity signal of stellar rotation or spin-orbit resonance?
• On the Stability of Extrasolar Planetary Systems and other Closely Orbiting Pairs
• Signature of Planetary Mergers on Stellar Spins
• Instability of mass transfer in a planet-star system
• On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters
• Protostellar spin-down: a planetary lift?
• On the origin of dynamically isolated hot Earths
• Roche-lobe overflow in eccentric planet-star systems
• Optical-infrared flares and radio afterglows by Jovian planets inspiraling into their host stars
• Stellar spectral-type (mass) dependence of the dearth of close-in planets around fast-rotating stars. Architecture of Kepler confirmed single-exoplanet systems compared to star-planet evolution models
• A model for spin-orbit commensurability and synchronous starspot activity in stars with close-by planets
• A dearth of close-in planets around rapidly rotating stars or a dearth of data?
• The Rate of Planet-star Coalescences Due to Tides and Stellar Evolution
• Planet Across Space and Time (PAST). VII. The origin and tidal evolution of hot Jupiters constrained by a broken age-frequency relation
• On the behaviour of spin-orbit connection of exoplanets
• Tidal Evolution of Close-in Exoplanets and Host Stars
• Accretion of Planetary Material onto Host Stars
• Rotation of planet-harbouring stars
• Could star-planet magnetic interactions lead to planet migration and influence stellar rotation ?