Some molecular abundances in Halley's UV spectra

Krishnaswamy, K. S. ; Wallis Max, K. (1986) Some molecular abundances in Halley's UV spectra Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet, 3 . pp. 7-10.

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Abstract

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 1×1027 molecules/s at that time, but both showed day-to-day variability by 2 - 3 times.

Item Type:Article
Source:Copyright of this article belongs to Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet.
Keywords:Abundance; Comet Nuclei; Halley's Comet; Molecular Spectra; Ultraviolet Spectroscopy; Diatomic Molecules; IUE; Mass Spectrometers; Nitric Oxide; Sulfur; Sulfur Compounds
ID Code:87407
Deposited On:19 Mar 2012 06:45
Last Modified:19 Mar 2012 06:45

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