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Spatially resolved spectrophotometry of Comet P/Stephan-OtermaObservations of Comet P/Stephan-Oterma were made with an Intensified Dissector Scanner spectrograph on the McDonald Observatory 2.7-m telescope during the period from July 1980 to February 1981. These spectra cover a range of heliocentric distances from 2.3 AU preperihelion to 1.8 AU postperihelion. A small aperture was used to map the spatial distributions of the gases in the coma. Column densities of the observed cometary emissions (CN, C3, CH, and C2) were calculated, and it is shown that Stephan-Oterma appeared nearly spherically symmetric. These date are used by Cochran (1985) to constrain chemical models of Stephan-Oterma.
Document ID
19850053935
Document Type
Reprint (Version printed in journal)
Authors
Cochran, A. L.
(McDonald Observatory Austin, TX, United States)
Barker, E. S.
(Texas, University Austin, TX, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: Icarus
Volume: 62
ISSN: 0019-1035
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: NGR-44-012-152
Distribution Limits
Public
Copyright
Other
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