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Heavy Elements in DA White Dwarfs
(Astronomical Society of the Pacific, 2001)
Spectral analysis of sdB Stars from the Hamburg ESO Survey
(Astronomical Society of the Pacific, 2001)
We aim at the compilation of a statistically complete sample of sdB stars in the southern hemisphere. Candidates are selected from the database of digitized spectra of the Hamburg/ESO objective prism survey. First simulations ...
Spectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gap
(Astronomical Society of the Pacific, 2001)
We report results of a spectral monitoring campagne of the DAB white dwarf HS 0209+0832, for which helium line profile variations were reported earlier (Heber et al. 1997). This finding is confirmed by our discovery of a ...