Near infrared spectroscopy of Mars: Study of the surface mineralogy

Details Near infrared spectroscopy of Mars: Study of the surface mineralogy Near infrared spectroscopy of Mars: Study of the surface mineralogy

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290...61e&link_type=abstract

In ESA, Infrared Spectroscopy in Astronomy p 61-66(SEE N90-19084 11-89)

Astronomy and Astrophysics

Astronomy

1

Infrared Spectroscopy, Mars (Planet), Mineralogy, Near Infrared Radiation, Planetary Geology, Bandwidth, Line Spectra, Mars Surface, Surface Properties

Scientific paper

Spectra of Mars are presented. They were recorded in September and October 1988, at the 1 meter telescope of the European Southern Observatory (Chile), between 2.8 and 5.2 microns with a circular variable filter and a resolving power of 60. Spectra were recorded at the center of the disk, the north region and the south pole with an aperture of 5 arcsec. In all the spectra, a strong absorption around 3 microns due to the OH bond in hydrated silicates, is observed. Weak absorption features seem to be superimposed at 3.4 and 3.8 microns in some spectra. Other absorption features are visible. An absorption feature appears around 5.0 microns, which probably indicates the presence of carbon monoxide chemically bound, on the martian surface.

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