Results 71 to 80 of about 872,424 (257)
The evaporation of planetary atmospheres
Contributions of the Astronomical Observatory Skalnaté PlesoIn recent years the focus of exoplanet research has shifted from the mere detection to detailed characterization. Precise measurements of the masses and radii of transiting planets have shown that some low-mass planets have extended atmospheres while others are bare rocks. Hybrid atmospheres consisting of a mixture of Hydrogen and large amount of heavy
E.W. Guenther, L. Fossati, P. Kabáth
openaire +3 more sources
A CHEMICAL KINETICS NETWORK FOR LIGHTNING AND LIFE IN PLANETARY ATMOSPHERES [PDF]
, 2015 There are many open questions about prebiotic chemistry in both planetary and exoplanetary environments. The increasing number of known exoplanets and other ultra-cool, substellar objects has propelled the desire to detect life and prebiotic chemistry ...
P. Rimmer, Christiane Helling
semanticscholar +1 more source
A Simple Model for Radiative and Convective Fluxes in Planetary Atmospheres [PDF]
, 2018 One-dimensional (vertical) models of planetary atmospheres typically balance the net solar and internal energy fluxes against the net thermal radiative and convective heat fluxes to determine an equilibrium thermal structure. Thus,simple models of shortwave and long wave radiative transport can provide insight into key processes operating within ...
arxiv +1 more source
Chemical aging of single and multicomponent biomass burning aerosol surrogate particles by OH: implications for cloud condensation nucleus activity [PDF]
Atmospheric Chemistry and Physics, 2015 Multiphase OH and O3 oxidation reactions with atmospheric organic aerosol (OA) can influence particle physicochemical properties including composition, morphology, and lifetime.
J. H. Slade +3 more
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Pre-conditioned backward Monte Carlo solutions to radiative transport in planetary atmospheres - Fundamentals: Sampling of propagation directions in polarising media [PDF]
, 2014 Context. The interpretation of polarised radiation emerging from a planetary atmosphere must rely on solutions to the vector Radiative Transport Equation (vRTE).
G. Muñoz, A., Mills, F.P
semanticscholar +1 more source
Journal of Geophysical Research: Machine Learning and ComputationThe atmosphere of Venus features stationary waves of planetary scale, which are believed to be caused by wind flowing over elevated terrains. Detecting these waves can provide valuable insight into atmospheric dynamics.
Husnu Baris Baydargil +3 more
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Stellar activity and magnetic shielding [PDF]
Proceedings IAU Symposium 264, 385-394, 2010, 2010 Stellar activity has a particularly strong influence on planets at small orbital distances, such as close-in exoplanets. For such planets, we present two extreme cases of stellar variability, namely stellar coronal mass ejections and stellar wind, which both result in the planetary environment being variable on a timescale of billions of years.
arxiv +1 more source
Interaction of infalling solid bodies with primordial atmospheres of disk-embedded planets [PDF]
A&A 618, A19 (2018), 2018 Planets that form early enough to be embedded in the circumstellar gas disk accumulate thick atmospheres of nebular gas. Models of these atmospheres need to specify the surface luminosity (i.e. energy loss rate) of the planet. This luminosity is usually associated with a continuous inflow of solid bodies, where the gravitational energy released from ...
arxiv +1 more source
Global Mapping of HCl on Mars by IRTF/iSHELL
The Planetary Science JournalHydrogen chloride (HCl)—a key marker of the chlorine cycle on Mars—has been recently discovered in the Martian atmosphere by the ExoMars/TGO mission. In-orbit data indicate that this molecule appears in the atmosphere only in a limited time period and ...
S. Aoki +8 more
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The Carbon-deficient Evolution of TRAPPIST-1c
The Astrophysical Journal, 2023 Transiting planets orbiting M dwarfs provide the best opportunity to study the atmospheres of rocky planets with current facilities. As JWST enters its second year of science operations, an important initial endeavor is to determine whether these rocky ...
Katie E. Teixeira +3 more
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