Mass retention efficiencies of He accretion onto carbon-oxygen white dwarfs and type Ia supernovae

Author： Wu C.   Wang B.   Liu D.   Han Z.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|604|issue|A31-A31

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.604, Iss.issue, 2017-07, pp. : A31-A31

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Abstract

Context. Type Ia supernovae (SNe Ia) play a crucial role in studying cosmology and galactic chemical evolution. They are thought to be thermonuclear explosions of carbon-oxygen white dwarfs (CO WDs) when their masses reach the Chandrasekar mass limit in binaries. Previous studies have suggested that He novae may be progenitor candidates of SNe Ia. However, the mass retention efficiencies during He nova outbursts are still uncertain.

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