Results 111 to 120 of about 6,063 (251)
The Young Age of the LAMP‐observed Frost in Lunar Polar Cold Traps
Geophysical Research Letters, 2019 The Lunar Reconnaissance Orbiter/Lyman Alpha Mapping Project (LAMP) ultraviolet instrument detected a 0.5–2% icy regolith mix on the floor of some of the southern pole permanently shadowed craters of the Moon. We present calculations indicating that most
W. M. Farrell +5 more
doaj +1 more source
Observations of the minor species Al and Fe in Mercury's exosphere
, 2017 We report here on the first observational evidence of Al and Fe in the exosphere of Mercury, based on measurements of resolved emission lines of these metals with Keck-1/HIRES. Al emission was observed on two separate runs, in 2008 and 2013, with tangent
T. Bida, R. Killen
semanticscholar +1 more source
Geophysical Research LettersThe Moon encountered an extreme space weather event (NOAA G5 class) on 10 May 2024, caused by a series of coronal mass ejections (CMEs). Chandra's Atmospheric Composition Explorer‐2 (CHACE‐2), a neutral gas mass spectrometer on board Chandrayaan‐2 ...
M. B. Dhanya +5 more
doaj +1 more source
Mercury's Seasonal Sodium Exosphere: MESSENGER Orbital Observations [PDF]
, 2014 The Mercury Atmospheric and Surface Composition Spectrometer (MASCS) Ultraviolet and Visible Spectrometer (UVVS) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft now orbiting Mercury provides the first close-up ...
Cassidy, Timothy A. +6 more
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Storm-time variability of terrestrial hydrogen exosphere: kinetic simulation results
Frontiers in Astronomy and Space SciencesRecent studies of TWINS Lyman-α observations have reported an increase in geocoronal column brightness during geomagnetic storms, indicating enhanced exospheric hydrogen atom density (NH).
Hyunju K. Connor +9 more
doaj +1 more source
Planetary environments: exosphere modelling and a new particle detection study [PDF]
, 2023 The thesis presents a study of the Mercury and Earth exospheres. For Mercury, we study and model the source and loss processes of the exosphere and compare the simulation results with observational data.
MORONI, MARTINA
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Observations and Models of the Lunar Sodium Exosphere 1988 - 1999 [PDF]
, 2012 Sodium in the lunar exosphere is easily observed from the Earth's surface due to its strong resonance emission lines in the visible region of the spectrum. Although sodium is a trace element, it is easily ejected from the surface by a number of processes.
Morgan, Thomas H. +6 more
core +1 more source
Two dimensional mapping of the sodium emission in Europa's exosphere [PDF]
, 2007 We present results of the mapping of Europa's sodium exosphere in two dimensions and through a period of time. We base this research on several observations taken in 2001 and 2002 with the McMath-Pierce Solar Telescope at Kitt Peak, Arizona.
Fraga-Encinas, Raquel
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Micro-meteoroids impact vaporization (MMIV) as source for Ca and CaO exosphere along Mercury’s orbit [PDF]
, 2022 The study of the micro-meteoroid environment is relevant to planetary science, space weathering of airless bodies and their upper atmospheric chemistry.
A. Aronica +12 more
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