Results 31 to 40 of about 10,991 (143)
Constraints on planetary tidal dissipation from a detailed study of Kepler 91b [PDF]
A&A 669, A2 (2023), 2022 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 ...
arxiv +1 more source
Orbital Decay of Hot Jupiters due to Weakly Nonlinear Tidal Dissipation
The Astrophysical Journal, 2023 We study tidal dissipation in hot Jupiter host stars due to the nonlinear damping of tidally driven g -modes, extending the calculations of Essick & Weinberg to a wide variety of stellar host types. This process causes the planet’s orbit to decay and has
Nevin N. Weinberg +5 more
doaj +1 more source
Observational Evidence for Tidal Destruction of Exoplanets [PDF]
Astrophys.J.698:1357-1366,2009, 2009 The distribution of the orbits of close-in exoplanets shows evidence for on-going removal and destruction by tides. Tides raised on a planet's host star cause the planet's orbit to decay, even after the orbital eccentricity has dropped to zero. Comparison of the observed orbital distribution and predictions of tidal theory show good qualitative ...
arxiv +1 more source
Tidal Dissipation in Stratified and Semi-convective Regions of Giant Planets
The Astrophysical Journal, 2023 We study how stably stratified or semi-convective layers alter the tidal dissipation rates associated with the generation of internal waves in planetary interiors.
Christina M. Pontin +2 more
doaj +1 more source
The Astrophysical Journal, 2023 We study how stably stratified or semiconvective layers alter tidal dissipation rates associated with the generation of inertial, gravito-inertial, interfacial, and surface gravity waves in rotating giant planets.
Christina M. Pontin +2 more
doaj +1 more source
Transiting exoplanets: From planet statistics to their physical nature
EPJ Web of Conferences, 2011 The colloquium "Detection and Dynamics of Transiting Exoplanets" was held at the Observatoire de Haute-Provence and discussed the status of transiting exoplanet investigations in a 4.5 day meeting.
Rauer H.
doaj +1 more source
Spin evolution of Venus-like planets subjected to gravitational and thermal tides [PDF]
, 2023 The arrival of powerful instruments will provide valuable data for the characterization of rocky exoplanets. It is then crucial to accurately model the dynamical state of exoplanets. Rocky planets with sufficiently large orbits should have non-zero eccentricities and/or obliquities.
arxiv +1 more source
Potential Melting of Extrasolar Planets by Tidal Dissipation
The Astrophysical JournalTidal heating on Io due to its finite eccentricity was predicted to drive surface volcanic activity, which was subsequently confirmed by the Voyager spacecraft.
Darryl Z. Seligman +8 more
doaj +1 more source
Initial Thermal States of Super‐Earth Exoplanets and Implications for Early Dynamos
Journal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.Abstract The accretion of Earth and the formation of a metallic core released a large amount of primordial heat and may have enabled its evolution into a habitable world. Metal‐silicate segregation likely occurs in super‐Earth exoplanets as well, but its influence on their initial thermal states has not been fully examined.
Nathaniel I. White, Jie Li
wiley +1 more source
Polar Neptunes Are Stable to Tides
The Astrophysical JournalThere is an intriguing and growing population of Neptune-sized planets with stellar obliquities near ∼90°. One previously proposed formation pathway is a disk-driven resonance, which can take place at the end stages of planet formation in a system ...
Emma M. Louden, Sarah C. Millholland
doaj +1 more source