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Ultraviolet observations of the symbiotic star AS 296AS 296 is a well-known S-type symbiotic star which underwent an optical outburst during 1988. In this paper, UV data based on IUE observations obtained both during the quiescent and outburst stages are presented and discussed, correlating them to observations made in the optical region. It is concluded that the object is a symbiotic nova, in which the outburst is due to a thermonuclear runaway produced in the hydrogen-burning shell of a white dwarf with M of about 0.5 solar masses, accreting from the late-type giant at a rate M(acc) of about 9.7 x 10 exp -9 solar mass/year. It is not possible to determine from the observations if the hydrogen flash is degenerate or nondegenerate.
Document ID
19930028529
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gutierrez-Moreno, A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moreno, H.
(Univ. de Chile Santiago, United States)
Feibelman, W. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
August 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 395
Issue: 1
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
93A12526
Distribution Limits
Public
Copyright
Other

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