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Double Degenerate and Progenitors of Supernovae Type Ia
(Astronomical Society of the Pacific, 2004)
We report on systematic radial velocity surveys for white dwarf { white dwarf binaries (double degenerates { DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carried out at the VLT. A large sample of DD ...
HS 2333 + 3927: a new sdB binary with a large reflection effect
(2004)
We report the discovery of a binary, HS 2233 + 3927, consisting of an sdB star with a faint companion. From its lightcurve the orbital period of 14,844 s, the mass ratio, the inclination, and other system parameters are ...