Results 41 to 50 of about 298 (156)
Prospects from TESS and Gaia to Constrain the Flatness of Planetary Systems
The Astronomical Journal, 2023 The mutual inclination between planets orbiting the same star provides key information to understand the formation and evolution of multiplanet systems.
Juan I. Espinoza-Retamal +2 more
doaj +1 more source
Tidal migration of exoplanets around M-dwarfs: frequency-dependent tidal dissipation [PDF]
, 2023 Samantha Wu +2 more
openalex +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract The identification and evaluation of abiotic methane remain an active research area due to uncertainties in traditional indicators that may lead to “false‐positive” detections. As an emerging isotopic tool, methane clumped isotope can provide novel information about the generation and post‐generation processes of methane gases.
Jiacheng Li +5 more
wiley +1 more source
Signs of Similar Stellar Obliquity Distributions for Hot and Warm Jupiters Orbiting Cool Stars
The Astronomical JournalTransiting giant planets provide a natural opportunity to examine stellar obliquities, which offer clues about the origin and dynamical histories of close-in planets.
Marvin Morgan +5 more
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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
The Astrophysical JournalThe formation and evolution of planetary systems are linked to their host stellar environment. In this study, we employ a pebble-accretion-based planet population synthesis model to explore the correlation between planetary properties and stellar mass ...
Mengrui Pan +5 more
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Orbital Alignment of the Eccentric Warm Jupiter TOI-677 b
The Astronomical Journal, 2023 Warm Jupiters lay out an excellent laboratory for testing models of planet formation and migration. Their separation from the host star makes tidal reprocessing of their orbits ineffective, which preserves the orbital architectures that result from the ...
Elyar Sedaghati +5 more
doaj +1 more source
Geodynamics of Super‐Earth GJ 486b
Journal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.Abstract Many super‐Earths are on very short orbits around their host star and, therefore, more likely to be tidally locked. Because this locking can lead to a strong contrast between the dayside and nightside surface temperatures, these super‐Earths could exhibit mantle convection patterns and tectonics that could differ significantly from those ...
Tobias G. Meier +10 more
wiley +1 more source
An Eccentric Sub-Neptune Moving Into the Evaporation Desert
The Astrophysical Journal LettersThough missions such as Kepler, K2, and TESS have discovered >2000 sub-Neptune and Neptunian planets, there is a dearth of such planets at close-in ( P ≲ 3 days) orbits. This feature, called the Neptune desert or the evaporation desert, is believed to be
Sydney A. Jenkins +33 more
doaj +1 more source
Testing the Origin of Hot Jupiters with Atmospheric Surveys
The Astrophysical JournalIn spite of their long detection history, the origin of hot Jupiters remains to be resolved. While dynamical evidence suggests high-eccentricity migration is most likely, conflicts remain when considering hot Jupiters as a population in the context of ...
Lina D’Aoust +3 more
doaj +1 more source