Global distribution of neutrons from Mars: Results from Mars Odyssey

W. C. Feldman, William V. Boynton, R. L. Tokar, T. H. Prettyman, O. Gasnault, S. W. Squyres, R. C. Elphic, D. J. Lawrence, S. L. Lawson, S. Maurice, G. W. McKinney, K. R. Moore, R. C. Reedy

Research output: Contribution to journalArticle

379 Citations (Scopus)

Abstract

Global distributions of thermal, epithermal, and fast neutron fluxes have been mapped during late southern summer/northern winter using the Mars Odyssey Neutron Spectrometer. These fluxes are selectively sensitive to the vertical and lateral spatial distributions of H and CO2 in the uppermost meter of the martian surface. Poleward of ±60° latitude is terrain rich in hydrogen, probably H2O ice buried beneath tens of centimeter-thick hydrogen-poor soil. The central portion of the north polar cap is covered by a thick CO2 layer, as is the residual south polar cap. Portions of the low to middle latitudes indicate subsurface deposits of chemically and/or physically bound H2O and/or OH.

Original languageEnglish (US)
Pages (from-to)75-78
Number of pages4
JournalScience
Volume297
Issue number5578
DOIs
StatePublished - Jul 5 2002
Externally publishedYes

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Mars
Neutrons
Hydrogen
Fast Neutrons
Ice
Soil
Hot Temperature

ASJC Scopus subject areas

  • General

Cite this

Feldman, W. C., Boynton, W. V., Tokar, R. L., Prettyman, T. H., Gasnault, O., Squyres, S. W., ... Reedy, R. C. (2002). Global distribution of neutrons from Mars: Results from Mars Odyssey. Science, 297(5578), 75-78. https://doi.org/10.1126/science.1073541

Global distribution of neutrons from Mars : Results from Mars Odyssey. / Feldman, W. C.; Boynton, William V.; Tokar, R. L.; Prettyman, T. H.; Gasnault, O.; Squyres, S. W.; Elphic, R. C.; Lawrence, D. J.; Lawson, S. L.; Maurice, S.; McKinney, G. W.; Moore, K. R.; Reedy, R. C.

In: Science, Vol. 297, No. 5578, 05.07.2002, p. 75-78.

Research output: Contribution to journalArticle

Feldman, WC, Boynton, WV, Tokar, RL, Prettyman, TH, Gasnault, O, Squyres, SW, Elphic, RC, Lawrence, DJ, Lawson, SL, Maurice, S, McKinney, GW, Moore, KR & Reedy, RC 2002, 'Global distribution of neutrons from Mars: Results from Mars Odyssey', Science, vol. 297, no. 5578, pp. 75-78. https://doi.org/10.1126/science.1073541
Feldman WC, Boynton WV, Tokar RL, Prettyman TH, Gasnault O, Squyres SW et al. Global distribution of neutrons from Mars: Results from Mars Odyssey. Science. 2002 Jul 5;297(5578):75-78. https://doi.org/10.1126/science.1073541
Feldman, W. C. ; Boynton, William V. ; Tokar, R. L. ; Prettyman, T. H. ; Gasnault, O. ; Squyres, S. W. ; Elphic, R. C. ; Lawrence, D. J. ; Lawson, S. L. ; Maurice, S. ; McKinney, G. W. ; Moore, K. R. ; Reedy, R. C. / Global distribution of neutrons from Mars : Results from Mars Odyssey. In: Science. 2002 ; Vol. 297, No. 5578. pp. 75-78.
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