Some molecular abundances in Halley's UV spectra

Details Some molecular abundances in Halley's UV spectra Some molecular abundances in Halley's UV spectra

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c...7w&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 7-10 (SEE N87-26714 20

Computer Science

Abundance, Comet Nuclei, Halley'S Comet, Molecular Spectra, Ultraviolet Spectroscopy, Diatomic Molecules, Iue, Mass Spectrometers, Nitric Oxide, Sulfur, Sulfur Compounds

Scientific paper

The abundances of diatomic molecules seen in the UV both give clues to the parent compounds and help unravel the gas and ion mass spectrometry. From IUE spectra of comet Halley, the authors find limits on SH and CS+column densities, and estimates of probable NO, S2 and SO. In particular, judged from the 226 nm y-band, NO was relatively abundant at 2 - 8×1013cm-2 on 9 - 14 March. The production rate of S2 was around 1×1027molecules/s at that time, but both showed day-to-day variability by 2 - 3 times.

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