Results 1 to 10 of about 13,237 (160)

Molecular Dications in Planetary Atmospheric Escape [PDF]

open access: yesAtmosphere, 2016
Fundamental properties of multiply charged molecular ions, such as energetics, structure, stability, lifetime and fragmentation dynamics, are relevant to understand and model the behavior of gaseous plasmas as well as ionosphere and astrophysical ...
Stefano Falcinelli   +7 more
doaj   +4 more sources

Atmospheric Escape and the Evolution of Close-In Exoplanets [PDF]

open access: yesAnnual Review of Earth and Planetary Sciences, 2019
Exoplanets with substantial hydrogen/helium atmospheres have been discovered in abundance, many residing extremely close to their parent stars. The extreme irradiation levels that these atmospheres experience cause them to undergo hydrodynamic atmospheric escape.
James E Owen
exaly   +4 more sources

On the Dual Nature of Atmospheric Escape

open access: yesThe Astrophysical Journal
Planetary atmospheres cannot remain hydrostatic at all altitudes because they approach finite density at infinite radius, implying infinite mass. Classical treatments address this in two directions: either retain a hydrostatic structure while allowing ...
Darius Modirrousta-Galian, Jun Korenaga
doaj   +3 more sources

Atmospheric Escape From Earth and Mars: Response to Solar and Solar Wind Drivers of Oxygen Escape

open access: yesGeophysical Research Letters
Habitability at the surface of a planet depends on having an atmosphere long enough for life to develop. The loss of atmosphere to space is an important component in assessing planetary surface habitability.
W. K. Peterson   +5 more
doaj   +2 more sources

Atmospheric escape from the TRAPPIST-1 planets and implications for habitability [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Chuanfei Dong   +2 more
exaly   +2 more sources

Wind‐induced atmospheric escape: Titan [PDF]

open access: yesGeophysical Research Letters, 2012
Rapid thermospheric flows can significantly enhance the atmospheric loss rates and structures of atmospheric coronae of planetary bodies. Using descriptions of atmospheric escape based on molecular kinetic models, we show that such flows at the exobase of Titan could significantly increase the calculated constituent thermal and nonthermal escape rates.
R E Hartle, Menelaos Sarantos
exaly   +2 more sources

Anomalous transient enhancement of planetary ion escape at Mars [PDF]

open access: yesNature Communications
Atmospheric ion escape plays a crucial role in the evolution of planetary climate and habitability. While Mars has been the focus of extensive in-situ spacecraft observations, our understanding of ion escape at Mars has been constrained by single-point ...
Chi Zhang   +19 more
doaj   +2 more sources

MAVEN-based investigation of Martian exobase temperatures: Diurnal and solar cycle variations

open access: yes地球与行星物理论评, 2023
The exobase is a key concept for understanding atmospheric escape and evolution on Mars. With the aid of neutral density data measured via the Neutral Gas and Ion Mass Spectrometer onboard the Mars Atmosphere and Volatile Evolution spacecraft, we ...
Hao Gu   +5 more
doaj   +1 more source

Quantifying the Key Factors Affecting the Escape of Planetary Atmospheres

open access: yesThe Astrophysical Journal, 2023
The habitability of Earth-like planets is an increasingly important subject in astrophysics and in planetary sciences. Atmospheric escape plays a vital role in the evolution of the habitability of Earth-like planets.
J. Luo, H.-Q. He, G.-S. Tong, Jiao Li
doaj   +1 more source

Atmospheric Escape Processes and Planetary Atmospheric Evolution [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2020
Abstract The habitability of the surface of any planet is determined by a complex evolution of its interior, surface, and atmosphere. The electromagnetic and particle radiation of stars drive thermal, chemical, and physical alteration of planetary atmospheres, including escape. Many known extrasolar planets experience vastly different
G. Gronoff   +19 more
openaire   +3 more sources

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