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Upper Limits of SO AND SO2 in Comets
- Source :
- ICARUS. 90
- Publication Year :
- 1991
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1991.
-
Abstract
- We have calculated synthetic spectra of SO and compared them with spectra of Comets I-A-A and P/Halley, in which Wallis and Krishna-Swamy claimed a tentative identification of SO. We found no evidence for the presence of So in these spectra. The derived upper limits on the production rates of SO and S02 in Comet I-A-A were found to be at least 50 times less than the S2 production rate. We also found that the SO and S02 upper limits in Comets P/Halley, P/Encke, and Bradfield (1979X) were less than the S2 abundance, reported in Comet IRAS-Araki-Alcock. Our result, contradict recent irradiation experiments, which produced abundant SO compared with S2 under most circumstances. This may suggest totally different models of the S2 producing mechanism in comets.
- Subjects :
- Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 00191035
- Volume :
- 90
- Database :
- NASA Technical Reports
- Journal :
- ICARUS
- Notes :
- NAGw-902, , NAG5-1272
- Publication Type :
- Report
- Accession number :
- edsnas.19970015348
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1016/0019-1035(91)90070-A