1. SOHO SWAN Lyα Models Supporting LRO LAMP: 2008–2023
- Author
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Wayne R. Pryor, W. Kent Tobiska, Kurt D. Retherford, Cesare Grava, Anthony Egan, Thomas K. Greathouse, G. Randall Gladstone, and Eric Quémerais
- Subjects
Heliosphere ,Astronomy ,QB1-991 - Abstract
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.
- Published
- 2024
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