An alternative symbiotic channel to Type Ia supernovae

Details An alternative symbiotic channel to Type Ia supernovae An alternative symbiotic channel to Type Ia supernovae

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.396.1086l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 396, Issue 2, pp. 1086-1095.

Astronomy and Astrophysics

Astronomy

28

Binaries: Symbiotic, Stars: Evolution, Stars: Mass-Loss, Supernovae: General

Scientific paper

By assuming an aspherical stellar wind with an equatorial disc from a red giant, we investigate the production of Type Ia supernovae (SNe Ia) via a symbiotic channel. We estimate that the Galactic birthrate of SNe Ia via the symbiotic channel is between 1.03 × 10-3 and 2.27 × 10-5yr-1, while the delay time of SNe Ia has a wide range from ~0.07 to 5 Gyr. The results are greatly affected by the outflow velocity and mass-loss rate of the equatorial disc. Using our model, we discuss the progenitors of SN 2002ic and SN 2006X.

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