Results 81 to 90 of about 872,424 (257)
Impact-driven planetary desiccation: The origin of the dry Venus [PDF]
Earth and Planetary Science Letters, 429, 181-190, 2015, 2015 The fate of surface water on Venus is one of the most important outstanding problems in comparative planetology. Here a new concept is proposed to explain water removal on a steam-covered proto Venus, referred to as impact-driven planetary desiccation.
arxiv +1 more source
Photochemistry of Planetary Atmospheres [PDF]
Eos, Transactions American Geophysical Union, 1999 From the distant, small, and icy bodies of the solar system, such as comets and Pluto, to the gas giants, Jupiter and Saturn, and the rocky inner planets (except Mercury), chemistry driven by the Sun plays a central role. Some of the most abundant constituents of the atmosphere become a principal source of a variety of minor constituents following the ...
openaire +3 more sources
Nonthermal Atmospheric Escape on the Kepler-11 “Super-Earths” Driven by Stellar Wind Sputtering
The Astrophysical Journal, 2023 Jeans escape or hydrodynamic escape is believed to dominate atmospheric loss for hot Jupiters. However, nonthermal mechanisms likely contribute substantially on hydrogen-rich “super-Earths” with relatively cold and extended atmospheres.
Hao Gu +4 more
doaj +1 more source
Atmospheres of Hot Super-Earths [PDF]
, 2011 Hot super-Earths likely possess minimal atmospheres established through vapor saturation equilibrium with the ground. We solve the hydrodynamics of these tenuous atmospheres at the surface of Corot-7b, Kepler 10b and 55 Cnc-e, including idealized treatments of magnetic drag and ohmic dissipation. We find that atmospheric pressures remain close to their
arxiv +1 more source
Sonic anemometry of planetary atmospheres [PDF]
Journal of Geophysical Research: Planets, 2003 The application of a recently developed model of sonic anemometers measuring process has revealed that these sensors cannot be considered as absolute ones when measuring spectral characteristics of turbulent wind speed since it is demonstrated that the ratios of measured to real spectral density functions depend on the composition and temperature of ...
Cuerva Tejero, Alvaro +1 more
openaire +3 more sources
Terminator Habitability: The Case for Limited Water Availability on M-dwarf Planets
The Astrophysical Journal, 2023 Rocky planets orbiting M-dwarf stars are among the most promising and abundant astronomical targets for detecting habitable climates. Planets in the M-dwarf habitable zone are likely synchronously rotating, such that we expect significant day–night ...
Ana H. Lobo +3 more
doaj +1 more source
Stellar winds and planetary atmospheres [PDF]
arXiv, 2021 Interactions between the winds of stars and the magnetospheres and atmospheres of planets involve many processes, including the acceleration of particles, heating of upper atmospheres, and a diverse range of atmospheric loss processes. Winds remove angular momentum from their host stars causing rotational spin-down and a decay in magnetic activity ...
arxiv
Origin and Evolution of Planetary Atmospheres [PDF]
Annual Review of Earth and Planetary Sciences, 1980 Spacecraft and groundbased observations of the atmospheres of solar system objects have provided a definition of their present characteristics and have yielded clues about their past history. Table 1 presents a summary of our current knowledge of the atmospheric properties of all the planets, except Pluto, and several satellites.
Pollack, James B., Yung, Yuk L.
openaire +4 more sources
The Kinetic Monte Carlo Model of the Auroral Electron Precipitation into N2-O2 Planetary Atmospheres
Universe, 2022 Auroral events are the prominent manifestation of solar/stellar forcing on planetary atmospheres. They are closely related to the energy deposition by and evolution of planetary atmospheres, and their observations are widely used to analyze the ...
Dmitri Bisikalo +2 more
doaj +1 more source
A SYSTEMATIC RETRIEVAL ANALYSIS OF SECONDARY ECLIPSE SPECTRA. III. DIAGNOSING CHEMICAL DISEQUILIBRIUM IN PLANETARY ATMOSPHERES [PDF]
, 2013 Chemical disequilibrium has recently become a relevant topic in the study of the atmospheres of transiting extrasolar planets, brown dwarfs, and directly imaged exoplanets.
M. Line, Y. Yung
semanticscholar +1 more source