Constraints on planetary tidal dissipation from a detailed study of Kepler 91b

Abstract

Context. With the detection of thousands of exoplanets, characterising their dynamical evolution in detail represents a key step in the understanding of their formation. Studying the dissipation of tides occurring both in the host star and in the planets is of great relevance in order to investigate the distribution of the angular momentum occurring among the objects populating the system and to studying the evolution of the orbital parameters. From a theoretical point of view, the dissipation of tides throughout a body may be studied by relying on the so-called phase or time-lag equilibrium tides model in which the reduced tidal quality factor Q'p, or equivalently the product between the love number and the time lag (k2DeltaT), describe how efficiently tides are dissipated within the perturbed body. Constraining these factors by looking at the current configuration of the exoplanetary system is extremely challenging, and simulations accounting for the evolution of the system as a whole might help to shed some light on the mechanisms governing this process. Aims. We aim to constrain the tidal dissipation factors of hot-Jupiter-like planets by studying the orbital evolution of Kepler-91b. Methods. We firstly carried out a detailed asteroseismc characterisation of Kepler-91 and computed a dedicated stellar model using both classical and astereoseismic constraints. We then coupled the evolution of the star to the one of the planets by means of our orbital evolution code and studied the evolution of the system by accounting for tides dissipated both in the planet and in the host star. Results. We found that the maximum value for k2DeltaT (or equivalently the minimum value for Q'p) determining the efficiency of equilibrium tides dissipation occurring within Kepler-91b is 0.4 pm 0.25 s (4.5+5.8 * 10^5).

arXiv commentaccepted for publication in Astronomy & Astrophysics

References in corpus (49)

• The chemical composition of the Sun
• Gaia Data Release 2. Summary of the contents and survey properties
• The Transiting Exoplanet Survey Satellite
• The NASA Exoplanet Archive: Data and Tools for Exoplanet Research
• The CoRoT satellite in flight : description and performance
• Solar fusion cross sections II: the pp chain and CNO cycles
• Origins of Hot Jupiters
• Galactic Reddening in 3D from Stellar Photometry - An Improved Map
• Tidal Decay of Close Planetary Orbits
• Evolution of "51Peg b-like" Planets
• Is tidal heating sufficient to explain bloated exoplanets? Consistent calculations accounting for finite initial eccentricity
• Stellar Spin-Orbit Misalignment in a Multiplanet System
• The Orbital Evolution of Gas Giant Planets around Giant Stars
• Synthetic Stellar Photometry - I. General considerations and new transformations for broad-band systems
• CLES, Code Liegeois d'Evolution Stellaire
• Magnetic Braking Formulation for Sun-Like Stars: Dependence on Dipole Field Strength and Rotation Rate
• Photoevaporation and High-Eccentricity Migration Created the Sub-Jovian Desert
• A new correction of stellar oscillation frequencies for near-surface effects
• Hot Jupiters and Cool Stars
• Strong tidal dissipation in Saturn and constraints on Enceladus' thermal state from astrometry
• The Apparently Decaying Orbit of WASP-12
• Calibration of Equilibrium Tide Theory for Extrasolar Planet Systems
• Tides in rotating barotropic fluid bodies: the contribution of inertial waves and the role of internal structure
• The Liege Oscillation Code
• Kepler-91b: a planet at the end of its life. Planet and giant host star properties via light-curve variations
• Calibration of Equilibrium Tide Theory for Extrasolar Planet Systems II
• Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems
• AIMS - A new tool for stellar parameter determinations using asteroseismic constraints
• Effect of the rotation and tidal dissipation history of stars on the evolution of close-in planets
• Radial Velocity Observations and Light Curve Noise Modeling Confirm That Kepler-91b is a Giant Planet Orbiting a Giant Star
• Synthetic Stellar Photometry - II. Testing the bolometric flux scale, and tables of bolometric corrections for the Hipparcos/Tycho, Pan-STARRS1, SkyMapper and JWST systems
• Star-planet interactions: II. Is planet engulfment the origin of fast rotating red giants?
• K2-97b: A (Re-?)Inflated Planet Orbiting a Red Giant Star
• Star-planet interactions: I. Stellar rotation and planetary orbits
• Star-planet interactions. V. Dynamical and equilibrium tides in convective zones
• Dynamical Constraints on the Core Mass of Hot Jupiter HAT-P-13b
• The K2-ESPRINT Project V: a short-period giant planet orbiting a subgiant star
• Slow Cooling and Fast Reinflation for Hot Jupiters
• 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
• TESS Giants Transiting Giants II: The hottest Jupiters orbiting evolved stars
• Precise Radial Velocity Measurements for Kepler Giants Hosting Planetary Candidates: Kepler-91 and KOI-1894
• Spatially Resolved Modeling of Optical Albedos for a Sample of Six Hot Jupiters
• Asteroseismology of evolved stars to constrain the internal transport of angular momentum. IV. Internal rotation of Kepler 56 from an MCMC analysis of the rotational splittings
• Kepler-93: a testbed for detailed seismic modelling and orbital evolution of super-earths around solar-like stars
• Revisiting Kepler-444. II. Rotational, orbital and high-energy fluxes evolution of the system
• The key impact of the host star's rotational history on the evolution of TOI-849b
• Star-planet interactions. IV. Possibility of detecting the orbit-shrinking of a planet around a red giant
• Coralie radial-velocity search for companions around evolved stars (CASCADES) III. A new Jupiter host-star: in-depth analysis of HD 29399 using TESS data

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• Is planetary inward migration responsible for GJ 504's fast rotation and bright X-ray luminosity? New constraints from eROSITA
• Asteroseismic modelling of main-sequence solar-like stars and Kepler exoplanet host stars with the FICO procedure I. Catalogue of fundamental stellar properties
• Quantification of Tides in Giant Planets from Observations
• How to measure tidal dissipation in long resonant chains
• TOI-7154b: A Close-in Massive Brown Dwarf in an Eccentric Orbit