Results 61 to 70 of about 6,063 (251)

Surface Exospheric Interactions

Space Science Reviews, 2023
AbstractGas-surface interactions at the Moon, Mercury and other massive planetary bodies constitute, alongside production and escape, an essential element of the physics of their gravitationally bound exospheres. From condensation and accumulation of exospheric species onto the surface in response to diurnal and seasonal changes of surface temperature,
Teolis, Ben, Sarantos, Menelaos, Schorghofer, Norbert, Jones, Brant, Grava, Cesare, MURA, Alessandro, Prem, Parvathy, Greenhagen, Ben, CAPRIA, MARIA TERESA, CREMONESE, Gabriele, LUCCHETTI, Alice, GALLUZZI, VALENTINA   +11 more
openaire   +2 more sources

Untangling the Origin of Molecular Hydrogen in the Lunar Exosphere

Astrophysical Journal, 2019
In situ experiments from the Apollo missions confirmed the presence of a tenuous exosphere on the Moon comprised of atoms and light molecular species. Of the most prominent volatiles found in the exosphere, molecular hydrogen (H2) has drawn considerable ...
P. B. Crandall, J. Gillis-Davis, R. Kaiser   +2 more
semanticscholar   +1 more source

Analytical model of Europa's O2 exosphere [PDF]

, 2016
The origin of the exosphere of Europa is its water ice surface. The existing exosphere models, assuming either a collisionless environment (simple Monte Carlo techniques) or a kinetic approach (Direct Monte Carlo Method) both predict that the major ...
MURA, Alessandro, MANGANO, VALERIA, PLAINAKI, CHRISTINA, MASSETTI, Stefano, DE ANGELIS, Elisabetta, RISPOLI, ROSANNA, ORSINI, Stefano, MILILLO, Anna   +7 more
core   +1 more source

An ICME impact on the Martian hydrogen corona

Earth and Planetary Physics, 2020
The Martian hydrogen exosphere extends out of the bow shock, forming a "hydrogen corona". The solar wind interacts directly with the hydrogen corona. During an ICME event on 7 March 2015, the SWIA instrument onboard Mars Atmosphere and Volatile Evolution
Qi Xu, XiaoJun Xu, Qing Chang, JiaYing Xu, Jing Wang, YuDong Ye   +5 more
doaj   +1 more source

Latitudinal Discrepancy Between Thermospheric Density and Temperature Associated With Neutral Composition Effect

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract In this study, multi‐source thermospheric observations and TIEGCM simulations were used to explore the latitudinal variations of thermospheric temperature and total mass density at equinoxes. At nighttime, temperature and density exhibit consistent latitudinal patterns, with higher values at high latitudes.
Zhongli Li, Xiaoli Luan, Jiuhou Lei, Dexin Ren   +3 more
wiley   +1 more source

Coronagraphic observations of the lunar sodium exosphere January–June, 2017

Icarus (New York, N.Y. 1962), 2019
In order to observe the lunar sodium exosphere out to one-half degree around the Moon, we designed, built and installed a small robotically controlled coronagraph at the Winer Observatory in Sonoita, Arizona.
R. Killen, T. Morgan, A. Potter, C. Plymate, R. Tucker, Jamil D. Johnson   +5 more
semanticscholar   +1 more source

Observed variations of the exospheric hydrogen density with the exospheric temperature

Journal of Geophysical Research, 1975
Measurements of exospheric hydrogen densities at a distance of 3 RE (earth radii) are presented as a function of exospheric temperature. They imply that the density nc at the exobase level decreases with exospheric temperature Tc but not enough to keep the Jeans escape flux FJ constant.
openaire   +2 more sources

Metallic Species in Mercury's Exosphere: EMMI/New Technology Telescope Observations [PDF]

, 2009
International audienceWe performed high spectral resolution observations of Mercury's exosphere on 2005 October 30 and 31 using the European Southern Observatory-New Technology Telescope, La Silla, Chile.
Erard, S., Leblanc, François, Foellmi, C., Doressoundiram, Alain   +3 more
core   +1 more source

Eine atomistische Deutung der Brunt-Vaisälä-Periode

Meteorologische Zeitschrift, 1994
In einer kurzen Notiz wird eine atomistische Deutung der Brunt-Väisälä-Periode diskutiert. Es wird gezeigt, daß an der unteren Grenze der Exosphäre, wo per definitionem die mittlere freie Weglänge und die Skalenhöhe von gleicher Größenordnung sind, die ...
A. Muschinski
doaj   +1 more source

Martian Magnetotail Neutral Sheet Asymmetry Driven by Heavy Planetary Pickup Ions

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract In the induced magnetotail of Mars, the neutral sheet is an important channel for atmospheric ion escape, yet the role of heavy planetary pickup ions in shaping its geometry has been unclear. Using three‐dimensional hybrid simulations, we demonstrate that these ions induce a global neutral sheet asymmetry via mass loading.
Jingyi Zhou, Zhenpeng Su, Kaijun Liu, Rentong Lin, Esa Kallio, Riku Jarvinen, Yuming Wang   +6 more
wiley   +1 more source