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The spatial distribution of polar hydrogen deposits on the Moon

✍ Scribed by V.R. Eke; L.F.A. Teodoro; R.C. Elphic

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 1000 KB
Volume: 200
Category: Article
ISSN: 0019-1035
DOI: 10.1016/j.icarus.2008.10.013

No coin nor oath required. For personal study only.

✦ Synopsis

A new analysis of the Lunar Prospector epithermal neutron data is presented, providing an improved map of the distribution of hydrogen near to the lunar poles. This is achieved using a specially developed pixon image reconstruction algorithm to deconvolve the instrumental response of the Lunar Prospector's neutron spectrometer from the observed data, while simultaneously suppressing the statistical noise. The results show that these data alone require the hydrogen to be concentrated into the cold traps at up to 1 wt% water-equivalent hydrogen. This combination of localisation and high concentration suggests that the hydrogen is present either in the form of a volatile compound or as solar wind protons implanted into small regolith grains.

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