The nature of type I supernovae

Details The nature of type I supernovae The nature of type I supernovae

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978azh....55..726s&link_type=abstract

(Astronomicheskii Zhurnal, vol. 55, July-Aug. 1978, p. 726-736.) Soviet Astronomy, vol. 22, July-Aug. 1978, p. 413-420. Transla

Astronomy and Astrophysics

Astronomy

8

Stellar Models, Supernovae, Binary Stars, Elliptical Galaxies, Planetary Nebulae, Spiral Galaxies, White Dwarf Stars

Scientific paper

Leftover white dwarfs whose mass slightly exceeds the Chandrasekhar limit, Mc, cannot be responsible for type I supernova outbursts in elliptical galaxies. Type I supernovae probably occur there in binary systems experiencing mass exchange. Accretion of matter onto a fully evolved white dwarf component could hardly induce an explosion, however. In spiral galaxies, type I supernovae are usually single stars. The presupernovae could well be planetary-nebula nuclei whose mass exceeds Mc. The probability that evolution will lead to a type I outburst is an order of magnitude lower in binary systems with mass exchange than for single stars, a circumstance that might explain the low frequency of type I outbursts per unit mass in E galaxies.

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