Search for double degenerate progenitors of supernovae type Ia with SPY

Details Search for double degenerate progenitors of supernovae type Ia with SPY Search for double degenerate progenitors of supernovae type Ia with SPY

2002-10-29

arxiv.org/abs/astro-ph/0210621v1

Astronomy and Astrophysics

Astrophysics

in: "From Twilight to Highlight", eds. W. Hillebrandt & B. Leibundgut, ESO Astrophysics Symposia, Springer-Verlag, in press, 6

Scientific paper

10.1007/10828549_18

We report on a large survey for double degenerate (DD) binaries as potential
progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (SN
Ia Progenitor surveY - SPY). About 560 white dwarfs were checked for radial
velocity variations until now. Ninety new DDs have been discovered, including
short period systems with masses close to the Chandrasekhar mass.

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