SOHO SWAN Lyα Models Supporting LRO LAMP: 2008–2023

The Lunar Reconnaissance Orbiter Lyman-Alpha Mapping Project (LAMP) has been mapping the Moon since its launch in 2009. Faint ultraviolet illumination of the lunar dark side includes light from stars and from hydrogen Ly α emissions, mostly attributed to sunlight scattered by hydrogen atoms near the...

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Bibliographic Details
Published in:The planetary science journal 2024-09, Vol.5 (9), p.210
Main Authors: Pryor, Wayne R., Tobiska, W. Kent, Retherford, Kurt D., Grava, Cesare, Egan, Anthony, Greathouse, Thomas K., Gladstone, G. Randall, Quémerais, Eric
Format: Article
Language:English
Subjects:
Heliosphere
Sciences of the Universe
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Summary:The Lunar Reconnaissance Orbiter Lyman-Alpha Mapping Project (LAMP) has been mapping the Moon since its launch in 2009. Faint ultraviolet illumination of the lunar dark side includes light from stars and from hydrogen Ly α emissions, mostly attributed to sunlight scattered by hydrogen atoms near the Sun with a smaller contribution from the whole Galaxy. Models of the lunar illumination by time-dependent Ly α photons have allowed the LAMP team to map polar shadowed craters suspected of harboring water ice and other volatiles. This paper describes the model that provides daily all-sky Ly α maps tuned by comparisons with all-sky Ly α maps from the SOlar and Heliospheric Observatory Solar Wind ANisotropy Experiment stationed at the Sun–Earth L1 point.
ISSN:2632-3338
2632-3338
DOI:10.3847/PSJ/ad7502