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Close binary EHB stars from SPY
(2004-06)
FUSE Observations of EC14026 Stars
(2004)
We present a FUSE abundance analysis of EC14026 stars. We compare the abundances of heavy elements in the atmospheres of EC14026 stars to non-pulsating stars with similar atmospheric parameters, and investigate whether ...
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 ...