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Spectroscopic Observations of Mercury’s Surface Reflectance During MESSENGER’s First Mercury Flyby

McClintock, W.E. and Izenberg, N.R. and Holsclaw, G.M. and Blewett, D.T. and Domingue, D.L. and Head, J.W. and Helbert, J. and McCoy, T.J. and Murchie, S.L. and Robinson, M.S. and Solomon, S.C. and Sprague, A.L. and Vilas, F. (2008) Spectroscopic Observations of Mercury’s Surface Reflectance During MESSENGER’s First Mercury Flyby. Science, 321 (5885), pp. 62-65. DOI: 10.1126/science.1159933.

Full text not available from this repository.

Abstract

During MESSENGER’s first flyby of Mercury, the Mercury Atmospheric and Surface Composition Spectrometer made simultaneous mid-ultraviolet to near-infrared (wavelengths of 200 to 1300 nanometers) reflectance observations of the surface. An ultraviolet absorption (<280 nanometers) suggests that the ferrous oxide (Fe2+) content of silicates in average surface material is low (less than 2 to 3 weight percent). This result is supported by the lack of a detectable 1-micrometer Fe2+ absorption band in high-spatial-resolution spectra of mature surface materials as well as immature crater ejecta, which suggests that the ferrous iron content may be low both on the surface and at depth. Differences in absorption features and slope among the spectra are evidence for variations in composition and regolith maturation of Mercury’s surface.

Document Type:Article
Title:Spectroscopic Observations of Mercury’s Surface Reflectance During MESSENGER’s First Mercury Flyby
Authors:
AuthorsInstitution or Email of Authors
McClintock, W.E.Laboratory for Atmospheric and Space Physics, Boulder, CO, USA
Izenberg, N.R.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
Holsclaw, G.M.Laboratory for Atmospheric and Space Physics, Boulder, CO, USA
Blewett, D.T.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
Domingue, D.L.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
Head, J.W.Department of Geological Sciences, Brown University, Providence, RI, USA
Helbert, J.UNSPECIFIED
McCoy, T.J.National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
Murchie, S.L.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
Robinson, M.S.Department of Geological Sciences, Arizona State University, Tempe, AZ, USA
Solomon, S.C.Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, USA
Sprague, A.L.Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA
Vilas, F.MMT Observatory, University of Arizona, Tucson, AZ, USA
Date:July 2008
Journal or Publication Title:Science
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:321
DOI:10.1126/science.1159933
Page Range:pp. 62-65
Status:Published
Keywords:MESSENGER, Mercury, Atmospheric and Surface Composition Spectrometer, spectra, Iron content, ultraviolet absorption
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Vergleichende Planetologie (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Stefanie Hempel
Deposited On:15 Dec 2008
Last Modified:27 Apr 2009 15:35

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