Mars Express Spicam Observations Of The Uv Nightglow And Auroral Emissions Of Mars

Details Mars Express Spicam Observations Of The Uv Nightglow And Auroral Emissions Of Mars Mars Express Spicam Observations Of The Uv Nightglow And Auroral Emissions Of Mars

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.6017s&link_type=abstract

American Astronomical Society, DPS meeting #38, #60.17; Bulletin of the American Astronomical Society, Vol. 38, p.600

Astronomy and Astrophysics

Astronomy

Scientific paper

The SPICAM UV Spectrometer (UVS) aboard the ESA Mars Express (MEX) spacecraft is the first ultraviolet spectrometer to operate at Mars since the Mariner 9 UVS ceased opering in 1972. SPICAM (Bertaux et al. 2003) covers the wavelength range of 108-317 nm. We present results of SPICAM observations of the night side limb of Mars obtained between 15 October 2004 and 22 August 2005. We find that Mars's nightglow emission spectrum consists primarily of the gamma and delta bands of NO radiating between 190 and 270 nm, H I Lyman alpha emission at 121.6 nm, and fainter emission features due to atomic O and C and the CO fourth positive band system. Evidence for auroral excitation is seen when SPICAM's observing line of sight passes over a region of high crustal magnetic field.

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