Is KPD 1930+2752 a good candidate type Ia supernova progenitor?

Details Is KPD 1930+2752 a good candidate type Ia supernova progenitor? Is KPD 1930+2752 a good candidate type Ia supernova progenitor?

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...376l...9e&link_type=abstract

Astronomy and Astrophysics, v.376, p.L9-L12 (2001)

Astronomy and Astrophysics

Astrophysics

22

Stars: Evolution, Stars: Kpd 1930+2752, Stars: Sne Ia, Binaries: Evolution

Scientific paper

We investigate the evolution of a binary system which initially has an orbital period of 2h17m and contains a 0.5 Msolar helium star with a white dwarf companion of 0.97 Msolar, similar to the suggested SN Ia candidate progenitor KPD 1930+2752. We show that the helium star completes core helium burning and becomes a white dwarf before the components merge. The most probable outcome of the merger of the components is the formation of a massive white dwarf, despite the fact that initially the total mass of the system is above the Chandrasekhar mass.

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