Is KPD 1930+2752 a good SN Ia progenitor?
Preprint
- 3 July 2001
Abstract
We investigate the evolution of a binary system which initially has an orbital period of 2^h 17^m and contains a 0.5 M_sun helium star with a white dwarf companion of 0.97 M_sun, similarly to suggested SN Ia candidate progenitor KPD 1930+2752. We show that the helium star completes core helium burning and becomes a white dwarf before components merge. The most probable outcome of the merger of components is formation of a massive white dwarf, despite initially the total mass of the system is above the Chandrasekhar mass.Keywords
All Related Versions
- Version 1, 2001-07-03, ArXiv
- Published version: Astronomy & Astrophysics, 376 (1), L9.
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