Results 51 to 60 of about 65,635 (192)
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
Evolution of Terrestrial Planetary Bodies and Implications for Habitability
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
Exoplanet imaging data challenge
<p>Datasets for the Exoplanet imaging data challenge (<a href="https://exoplanet-imaging-challenge.github.io/">https://exoplanet-imaging-challenge.github.io</a>). </p ...
Carlos Alberto Gomez Gonzalez (7144439) +1 more
core +1 more source
Abiotic ozone and oxygen in atmospheres similar to prebiotic earth [PDF]
The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection of oxygen (O2) or ozone (O3 ...
Domagal-Goldman, Shawn D. +10 more
core +1 more source
The Tidal Venus Phenomenon: Demographics and Case Studies
The demographics of terrestrial planets and their orbits reveal a vast diversity in overall planetary energy budgets. Terrestrial exoplanets in short-period or eccentric orbits can experience intense tidal heating that, combined with stellar irradiation,
Stephen R. Kane, Emma L. Miles
doaj +1 more source
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
Survey and Modeling of Windblown Ejecta Deposits on Venus
Abstract Venus' thick atmosphere rotates in the same direction as the solid body, but ∼60 times faster. This atmospheric superrotation has produced dozens of windblown ejecta deposits (“parabolas”) on the surface of Venus. The formation and modification of parabolas is an interplay between impacts, aeolian modification, and atmospheric dynamics.
T. J. Austin +3 more
wiley +1 more source
Are WASP-107-like Systems Consistent with High-eccentricity Migration?
WASP-107 b seems to be a poster child of the long-suspected high-eccentricity migration scenario. It is on a 5.7 day, polar orbit. The planet is Jupiter-like in radius but Neptune-like in mass with exceptionally low density.
Hang Yu, Fei Dai
doaj +1 more source
Orbital Decay of Hot Jupiters due to Weakly Nonlinear Tidal Dissipation
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
Abstract Thermal convective processes in the liquid cores of terrestrial planetary bodies with the capacity to generate magnetic dynamos may be better characterized by thermal conductivity estimates of core conditions. The composition of the core of asteroid 4 Vesta as determined by geochemical studies of HED meteorites is used as an analog for the ...
E. M. Lenhart, W. Yong, R. A. Secco
wiley +1 more source

