Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..951c&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, Sept.-Oct. 1986, p. 951-957. In Russian.
Astronomy and Astrophysics
Astronomy
3
Binary Stars, Peculiar Stars, Red Giant Stars, Stellar Spectra, Supernovae, H Alpha Line, Supergiant Stars
Scientific paper
The paper presents an observational test which confirms the hypothesis that peculiar type I supernovae are binary in nature and are accompanied by a red giant. The interaction of the supernova envelope with the companion leads to the ejection of 0.3-1 solar masses of matter from its envelope with expansion velocities of less than about 1000 km/s. This ejected matter turns out to be inside the supernova envelope occupying the central zone or less than about 20 percent in terms of radius. At a late stage (about 300 days) the luminosity of the ejecta, in the case of sufficiently close binaries, could be of the order of, or greater than, the luminosity of the supernova. The spectrum at this stage is formed by optically-thick hydrogen continuum radiation. Against the background of this hydrogen spectrum, narrow H-alpha emission with a luminosity significantly less than that of the luminosity in the continuum must be present.
No associations
LandOfFree
Possible doubling of peculiar type I supernovae - Is the satellite a red supergiant? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Possible doubling of peculiar type I supernovae - Is the satellite a red supergiant?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible doubling of peculiar type I supernovae - Is the satellite a red supergiant? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1736329