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Ultraviolet views and spectroscopic cluesIUE observations of SN 1987A obtained on days 60-260 of 1987 are presented graphically and characterized in detail. Particular attention is given to the complex changes in the early spectra, the domination of the energy distribution by line blanketing after an initial cooling period, and the spectra of the survivors (stars 2 and 3 of Sk -69 deg 202). The later emergence of narrow UV emission lines is attributed to photoionization of N-rich gas in a circumstellar shell, probably ejected from the SN 1987A progenitor (star 1 of Sk -69 deg 202) during its red supergiant phase.
Document ID
19880048088
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kirshner, Robert P. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Astrophysics
Meeting Information
Meeting: ESO Workshop on the SN 1987
Location: Garching
Country: Germany
Start Date: July 6, 1987
Accession Number
88A35315
Funding Number(s)
CONTRACT_GRANT: NAG5-645
CONTRACT_GRANT: NSF AST-85-16537
CONTRACT_GRANT: NAG5-841
Distribution Limits
Public
Copyright
Other

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