Vaporization of ices containing S2 - Implications for comets

Details Vaporization of ices containing S2 - Implications for comets Vaporization of ices containing S2 - Implications for comets

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..399m&link_type=abstract

Icarus (ISSN 0019-1035), vol. 74, June 1988, p. 399-412.

Astronomy and Astrophysics

Astronomy

13

Comet Heads, Ice, Iras-Araki-Alcock Comet, Sulfur, Vaporizing, Astronomical Spectroscopy, Comet Nuclei, Free Radicals, Ultraviolet Spectra, Comets, Ice, Vaporization, Sulfur, Iras-Araki-Alcock, Parent Molecules, Origin, Comae, Spectra, Ultraviolet, Matrix, Argon, Krypton, Water, Warming, Intensity, Annealing, Absorption, Spectrometry, Experiments, Residue, Comet Nuclei, Laboratory Studies, Equipment, Diagrams

Scientific paper

An effort is made to ascertain whether the S2 detected in Comet IRAS-Araki-Alcock 1983d can be stored in ices during warming, and is released during the vaporization of its water ice matrix, in view of data on the UV spectrum of S2 in Ar and Kr matrices and water ice in which the ratio of matrix or molecular ice to S2 is of the order of 500:1. The results obtained support the hypothesis that the S2:H2O ratio in the solid phase may not be a predictor of the gas phase ratio. It is concluded that similar vaporization from a cometary nucleus would not release most of the S2 contained in the ice.

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