Results 41 to 50 of about 134,248 (173)
The Astrophysical Journal Letters, 2023 High-eccentricity migration is a likely formation mechanism for many observed hot Jupiters, particularly those with a large misalignment between the stellar spin axis and orbital angular momentum axis of the planet.
Michelle Vick, Yubo Su, Dong Lai
doaj +1 more source
TIDAL LIMITS TO PLANETARY HABITABILITY [PDF]
, 2009 The habitable zones (HZs) of main-sequence stars have traditionally been defined as the range of orbits that intercept the appropriate amount of stellar flux to permit surface water on a planet. Terrestrial exoplanets discovered to orbit M stars in these
R. Barnes +3 more
semanticscholar +1 more source
Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution
AGU Advances, Volume 6, Issue 6, December 2025.Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer +3 more
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
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The roles of tidal evolution and evaporative mass loss in the origin of CoRoT-7 b [PDF]
, 2010 CoRoT-7 b is the first confirmed rocky exoplanet, but, with an orbital semimajor axis of 0.0172 au, its origins may be unlike any rocky planet in our Solar system. In this study, we consider the roles of tidal evolution and evaporative mass loss in CoRoT-
B. Jackson +5 more
semanticscholar +1 more source
Evolution of Terrestrial Planetary Bodies and Implications for Habitability
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract The terrestrial planetary bodies of our solar system—Mercury, Venus, Earth, and Mars—share a common origin through nebular accretion and early magma ocean differentiation, yet they diverged significantly in geological evolution, tectonic regimes, and habitability.
Peter A. Cawood +4 more
wiley +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
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Nonlinear and Nonmonotonic Effect of Ocean Tidal Mixing on Exoplanet Climates and Habitability
Astrophysical Journal LettersTides play an important role in the circulation and mean state of the Earth’s oceans through inducing significant mixing. On other planets, tidal forcings could be highly amplified compared to Earth, such as planets orbiting relatively close to low-mass ...
Maria Di Paolo +3 more
semanticscholar +1 more source
The composition of transiting giant extrasolar planets [PDF]
, 2007 In principle, the combined measurements of the mass and radius of a giant exoplanet allow one to determine the relative fraction of hydrogen and helium and of heavy elements in the planet.
Tristan Guillot
semanticscholar +1 more source
Journal for the Theory of Social Behaviour, Volume 55, Issue 4, December 2025.ABSTRACT Humanity seems stuck on different ways to fail to meet the challenge posed by a declared climate emergency and manifest problems of ecological breakdown. Rather than reprise these failures, we use the Fermi Paradox and simulation hypothesis to make a simple point about agency. The argument unfolds in two sections.
Jamie Morgan
wiley +1 more source