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Browsing by Author "Lemke, M."
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Abundances of UV bright stars in globular clusters. I. ROA 5701 in omega Centauri and Barnard 29 in M 13
Moehler, S.; Heber, U.; Lemke, M.; Napiwotzki, R. (1998)Two UV brights stars in globular clusters, ROA 5701 (ω Cen) and Barnard 29 (M 13) are analysed from high-resolution UV and optical spectra. The main aim is the measurement of iron abundances from UV spectra obtained with ... -
Model Spectra of Hot Subdwarfs for the Gaia Mission
Hindson, Luke; Napiwotzki, R.; Heber, U.; Lemke, M. (Astronomical Society of the Pacific, 2008)The Gaia mission will provide an unprecedented 3D view of our galaxy, it will obtain astrometric, photometric and spectrographic data for roughly one billion stars. We are particularly interested in the treasure chest of ... -
Spectral analysis of hot subluminous stars
Heber, U.; Edelmann, H.; Lemke, M.; Napiwotzki, R.; Engels, D. (Astronomical Society of the Pacific, 1999)Optical spectra of 40 sdOB stars drawn from the Palomar Green and the Hamburg-Schmidt surveys are presented (including three EC 14026 stars). Eight of which are spectroscopic binaries. -
Spectral Analysis of sdB Stars from the Hamburg ESO Survey
Edelmann, H.; Heber, U.; Napiwotzki, R.; Lemke, M.; Christlieb, N. (2001) -
Spectral analysis of sdB Stars from the Hamburg ESO Survey
Edelmann, H.; Heber, U.; Napiwotzki, R.; Lemke, M.; Christlieb, N. (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 analysis of sdB Stars from the Hamburg Quasar Survey
Edelmann, H.; Heber, U.; Hagen, H.J.; Dreizler, S.; Napiwotzki, R.; Engels, D.; Lemke, M. (2003-03)