Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (48) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Temporal and Spatial Variability of Lunar Hydration As Observed by the Deep Impact Spacecraft
Authors:
Sunshine, Jessica M.; Farnham, Tony L.; Feaga, Lori M.; Groussin, Olivier; Merlin, Frédéric; Milliken, Ralph E.; A'Hearn, Michael F.
Affiliation:
AA(University of Maryland, College Park, MD 20742, USA), AB(University of Maryland, College Park, MD 20742, USA), AC(University of Maryland, College Park, MD 20742, USA), AD(Laboratoire d'Astrophysique de Marseille, 13388 Marseille, France), AE(University of Maryland, College Park, MD 20742, USA), AF(Jet Propulsion Laboratory/California Institute of Technology, Pasadena, CA 91109, USA), AG(University of Maryland, College Park, MD 20742, USA)
Publication:
Science, Volume 326, Issue 5952, pp. 565- (2009). (Sci Homepage)
Publication Date:
10/2009
Category:
PLANET SCI
Origin:
SCIENCE
DOI:
10.1126/science.1179788
Bibliographic Code:
2009Sci...326..565S

Abstract

The Moon is generally anhydrous, yet the Deep Impact spacecraft found the entire surface to be hydrated during some portions of the day. Hydroxyl (OH) and water (H2O) absorptions in the near infrared were strongest near the North Pole and are consistent with <0.5 weight percent H2O. Hydration varied with temperature, rather than cumulative solar radiation, but no inherent absorptivity differences with composition were observed. However, comparisons between data collected 1 week (a quarter lunar day) apart show a dynamic process with diurnal changes in hydration that were greater for mare basalts (~70%) than for highlands (~50%). This hydration loss and return to a steady state occurred entirely between local morning and evening, requiring a ready daytime source of water-group ions, which is consistent with a solar wind origin.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints