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Close binary EHB stars from SPY
(2004-06)
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 ...
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 ...
A population model of the solar neighbourhood thin disc white dwarfs
(2004)
We present a model of the solar neighbourhood (d < 100 pc) white dwarf (WD) population and show the resulting effective temperature and mass distribution. Our model parameters, in particular the WD cooling time-scale, are ...
Discovery of kilogauss magnetic fields in three DA white dwarfs
(2004)
We have detected longitudinal magnetic fields between 2 and 4 kG in three (WD0446−790, WD1105−048, WD2359−434) out of a sample of 12 normal DA white dwarfs by using optical spectropolarimetry done with the VLT Antu 8 m ...