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airborne spectrophotometry of sn 1987a from 1.7 to 12.6 microns - time history of the dust continuum and line emissionSpectrophotometric observations of SN 1987A from the Kuiper Airborne Observatory are presented for five epochs at 60, 260, 415, 615, and 775 days after the explosion. The low-resolution (lambda/Delta lambda = 50-100) spectra of SN 1987A are combined with data from other wavelengths to model the continuum, subtract the continuum from the spectra to determine line strengths and reveal molecular bands, separate the atomic continuum radiation from the dust continuum, and derive constraints on the grain temperatures and optical depths. A scenario for the evolution of SN 1987A and that of the ejecta from which it arises is obtained on the basis of the analysis of the continuum emission.
Document ID
19940033876
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Wooden, Diane H.
(NASA Ames Research Center Moffett Field, CA, United States)
Rank, David M.
(Lick Observatory Santa Cruz, CA, United States)
Bregman, Jesse D.
(NASA Ames Research Center Moffett Field, CA, United States)
Witteborn, Fred C.
(NASA Ames Research Center Moffett Field, CA, United States)
Tielens, A. G. G. M.
(NASA Ames Research Center Moffett Field, CA, United States)
Cohen, Martin
(California Univ. Berkeley, United States)
Pinto, Philip A.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Axelrod, Timothy S.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1993
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 88
Issue: 2
ISSN: 0067-0049
Subject Category
ASTRONOMY
Distribution Limits
Public
Copyright
Other