Double Detonation of Sub-Chandrasekhar White Dwarfs and Subluminous Type Ia Supernovae

Details Double Detonation of Sub-Chandrasekhar White Dwarfs and Subluminous Type Ia Supernovae Double Detonation of Sub-Chandrasekhar White Dwarfs and Subluminous Type Ia Supernovae

2010-10-25

arxiv.org/abs/1010.5151v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 5 equations

Scientific paper

Type Ia supernovae are thought to result from thermonuclear explosions of carbon-oxygen white dwarf stars. This model generally explains the observed properties with certain exceptions, like sub-luminous supernovae. Here we discuss the possibility of sub-Chandrasekhar WDs detonating due to the build up of a layer of helium on the C-O WD by accreting from a helium rich companion star to explain observed deviations such as subluminous type Ia. We also detail some of the energetics involved that will make such scenarios plausible.

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