Results 121 to 130 of about 6,063 (251)
The Planetary Science JournalWe introduce a numerically efficient approach to include lunar surface topography in Monte Carlo exosphere simulations by sampling slope and azimuth angles from latitude-dependent Lunar Orbiter Laser Altimeter distributions and rotating particle release ...
Alexander Peschel +3 more
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The Astrophysical JournalOur ability to understand the formation of the exospheres of airless bodies such as the Moon and Mercury has been hindered by uncertainties in how surface processes influence exospheric sources.
Liam S. Morrissey +11 more
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Meteoritic influence on sodium and potassium abundance in the lunar exosphere measured by LADEE
Geophysical Research Letters, 2016 The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX), Ultraviolet‐Visible Spectrometer (UVS), and Neutral Mass Spectrometer (NMS).
Jamey R. Szalay +3 more
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The Planetary Science JournalTo better assess the role that electrons play in exosphere production on icy bodies, we measured the total and O _2 sputtering yields from H _2 O ice for electrons with energies between 0.75 and 10 keV and temperatures between 15 and 124.5 K.
Rebecca A. Carmack, Mark J. Loeffler
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Seasonal Effects of the Changing Photon Scattering Rates on Mercury’s Exospheric Structure
The Planetary Science JournalEmission in Mercury’s exosphere observed from the ground and by spacecraft is produced by resonant scattering of sunlight. The process of resonant scattering changes the structure of the exosphere owing to the transfer of momentum between the incident ...
Matthew H. Burger +5 more
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Geophysical Research LettersMercury is surrounded by a tenuous neutral exosphere composed primarily of sodium atoms, which can be continuously ionized. The production of sodium ions is concentrated on the dayside, and these ions can subsequently be transported to the magnetotail ...
Yuxi Chen, Chuanfei Dong, Weijie Sun
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The Evolution Of Mercury'S Exosphere Through Four Years of Observation With Themis [PDF]
, 2010 International audienceAlmost twenty years of ground based observations have highlighted several features of Mercury's exosphere which will further explore by two forthcoming space missions to Mercury, MESSENGER to be inserted in 2011 and Bepi-Colombo to ...
Leblanc, François +1 more
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Frontiers in Astronomy and Space SciencesHighly charged ions in the solar wind undergo charge exchange with neutral atoms in the Earth’s exosphere, particularly within the magnetosheath and cusps.
Jaewoong Jung +5 more
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A New Mechanism for Early-Time Plasmaspheric Refilling: The Role of Charge Exchange Reactions in the Transport of Energy and Mass Throughout the Ring Current-Plasmasphere System. [PDF]
J Geophys Res Space Phys, 2022 Liu J, Ilie R, Borovsky JE, Liemohn MW.
europepmc +1 more source
Surface Response of Mercury’s Sulfides under Solar Wind Ion Irradiation
The Planetary Science JournalThe MESSENGER mission revealed unexpectedly high sulfur content within Mercury’s surface, deviating from the lunar regolith, which was until recently considered a good Mercury analog.
Noah Jäggi, Catherine A. Dukes
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