On symbiotic stars and Type IA supernovae

Details On symbiotic stars and Type IA supernovae On symbiotic stars and Type IA supernovae

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...407l..81k&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 407, no. 2, p. L81-L84.

Astronomy and Astrophysics

Astrophysics

47

Binary Stars, Red Giant Stars, Stellar Evolution, Supernovae, Symbiotic Stars, White Dwarf Stars, Detonation, Helium, Stellar Mass

Scientific paper

We examine the possibility that symbiotic stars-wide binaries containing a red giant and a white dwarf-produce a significant fraction of Type Ia supernovae (SN Ia). These binaries probably cannot account for SN Ia events if the white dwarf mass must evolve to the Chandrasekhar limit during the expected lifetime of the red giant primary star. However, symbiotic binaries are good candidates for helium detonation supernovae in low-mass white dwarfs. If helium detonations can produce the majority of SN Ia events, then symbiotic stars might account for a large fraction of Type Ia supernovae.

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