Close binary white dwarfs and supernovae Ia

Astronomy and Astrophysics – Astronomy

Scientific paper

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Binaries: Close, White Dwarfs

Scientific paper

We report on the current status of radial velocity surveys for white dwarf binaries (double degenerates - DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carried out at the VLT. A large sample of DD will allow us to put strong constraints on the phases of close binary evolution of the progenitor systems and to perform an observational test of the DD scenario for supernovae of type Ia.

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