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Maillard et al. 1995

Maillard, J.-P., Drossart, P., Bézard, B., de Bergh, C., Lellouch, E., Marten, A., Caldwell, J., Hilico, J.-C. and Atreya, S.K. (1995). Methane and carbon monoxide infrared emissions observed at the Canada-France-Hawaii Telescope during the collision of comet SL-9 with Jupiter. Geophysical Research Letters 22: doi: 10.1029/95GL01019. issn: 0094-8276.

Observations with the Fourier Transform Spectrometer were conducted in spectral ranges from 1.6 to 4.7 &mgr;m, from July 17 to 21 (UT) on the hot plumes appearing on the limb as well as hours or days after the impacts. We present here an analysis of the methane emission observed at 3.3 &mgr;m some 10 min after the C impact, indicating the presence of a very small (less than 100 km wide) hot region with temperatures in the 750--1500 K range within the 0.1- to 0.01-mbar region. We also report the detection of CO emission at 4.7 &mgr;m 4.5 hrs after the L impact, indicative of a temperature of 274¿10 K at the ~1016 CO molec cm-2 level. The observations suggest that the stratospheric temperature decreases with depth by at least 30 K over two CO pressure decades. ¿ American Geophysical Union 1995

BACKGROUND DATA FILES

	Abstract

Keywords
Planetology, Comets and Small Bodies, General or miscellaneous, Planetology, Comets and Small Bodies, Impact phenomena

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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