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The historical record for Sirius - Evidence for a white-dwarf thermonuclear runaway?Evidence was recently presented that in medieval times Sirius was a bright red star, rather than the present bluish-white star. Here, the results of attempts to detect possible planetary nebula ejecta toward Sirius using data obtained by the IUE are presented. Based on these results and in the light of recent advances in understanding white-dwarf evolution, it is proposed that Sirius B underwent a recent thermonuclear runaway event triggered by a diffusion-induced CN reaction.
Document ID
19870038360
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bruhweiler, Frederick C. (Catholic University of America, Washington, DC, United States)
Kondo, Yoji (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sion, Edward M. (Villanova, University PA, United States)
Date Acquired
August 13, 2013
Publication Date
November 20, 1986
Publication Information
Publication: Nature
Volume: 324
ISSN: 0028-0836
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Other