Type Ia Supernovae in semi-detached binary systems

Abstract

We have considered scenarios for the evolution of close binaries resulting in the formation of semi-detached systems in which a white dwarf can accumulate Chandrasekhar mass by accretion from a main-sequence or subgiant companion with $M\sim 2M_{\odot }$. These white dwarfs, probably, explode as type Ia supernovae or collapse with formation of neutron stars. We have carried out a population synthesis study for these systems and have estimated the occurrence rate of such events in the Galaxy, depending on the parameter of common envelopes, mass-exchange rate in the binary, reaction of the main-sequence component on accretion of helium in the intervening phase of evolution. We have found that the model occurrence rate of SNe Ia in semi-detached systems is $\simeq 0.2\times 10^{-3}$ yr${}^{-1}$, i. e., it does not exceed $\sim 10$ of the observational estimate of the Galactic occurrence rate of SNe Ia.

Astronomy Letters, 2003, vol.29, no.12, in press. 22 pages, including 2 tables, 5 figures

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Cited by in corpus (19)

• The Evolution of Compact Binary Star Systems
• The single degenerate channel for the progenitors of type Ia supernovae
• Progenitors of type Ia supernovae
• COSMIC Variance in Binary Population Synthesis
• The rates of Type Ia Supernovae. I. Analytical Formulations
• Mass-accreting white dwarfs and type Ia supernovae
• The Evolution of Compact Binary Star Systems
• Evolving to Type Ia Supernovae with Short Delay Times
• The progenitors of Type Ia supernovae with long delay times
• A single-degenerate model for the progenitor of the Type Ia supernova 2002ic
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• New constraints on SN Ia progenitor models
• The helium star donor channel for the progenitors of type Ia supernovae with different metallicities
• Population synthesis in astrophysics
• The mechanism of Supernova Ia explosion in elliptical galaxies
• A likely candidate of type Ia supernova progenitors: the X-ray pulsating companion of the hot subdwarf HD 49798
• Population Synthesis for Progenitors of Type Ia Supernovae
• Double O-Ne-Mg white dwarfs merging as the source of the Powerfull Gravitational Waves for LIGO/VIRGO type interferometers
• Three-dimensional simulations of accretion flow in the progenitor of Tycho's supernova