2021
DOI: 10.21203/rs.3.rs-777152/v1
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An Exogenic Origin for the Volatiles Sampled by the LCROSS Impact

Abstract: Returning humans to the Moon presents an unprecedented opportunity to determine the origin of volatiles stored in the permanently shaded regions (PSRs), which trace the history of lunar volcanic activity, solar wind surface chemistry, and volatile delivery to the Earth and Moon through impacts of comets, asteroids, and micrometeoroids. So far, the source of the volatiles sampled by the Lunar Crater Observation and Sensing Satellite (LCROSS) plume (1, 2) has remained undetermined. We show here that the source c… Show more

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Cited by 3 publications
(2 citation statements)
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“…Our 1D model is based on the diffusion equation applied in our photochemical model previously applied to Titan (de La Haye et al 2008;Mandt et al 2012aMandt et al , 2012b, Pluto (Luspay-Kuti et al 2017;Mandt et al 2017), and Triton (Mandt & Luspay-Kuti 2019). This model calculates the abundance of atmospheric species as a function of altitude based on the composition of the atmosphere at the surface, the temperature profile, and diffusion processes.…”
Section: Scope Of This Studymentioning
confidence: 99%
“…Our 1D model is based on the diffusion equation applied in our photochemical model previously applied to Titan (de La Haye et al 2008;Mandt et al 2012aMandt et al , 2012b, Pluto (Luspay-Kuti et al 2017;Mandt et al 2017), and Triton (Mandt & Luspay-Kuti 2019). This model calculates the abundance of atmospheric species as a function of altitude based on the composition of the atmosphere at the surface, the temperature profile, and diffusion processes.…”
Section: Scope Of This Studymentioning
confidence: 99%
“…A confirmation of the presence of water ice itself came in 2009 with the impact of the Lunar CRater Observation and Sensing Satellite (LCROSS) into Cabeus crater, which identified spectroscopic signatures of water ice in the ejected debris plume from the sediment within the PSR (Colaprete et al., 2010). Further analysis of the spectroscopic signatures suggests that this ice likely was cometary in origin (Mandt et al., 2022).…”
Section: Introductionmentioning
confidence: 99%