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        Subdwarf B Binaries from the SPY Project

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        901601.pdf (PDF, 359Kb)
        Author
        Karl, C.
        Heber, U.
        Napiwotzki, R.
        Attention
        2299/1448
        Abstract
        In the course of our search for double degenerate binaries as potential progenitors of type Ia supernovae with the ESO VLT (ESO - SN Ia progenitor survey - SPY), several sdB binaries were discovered. We report on the analysis of six radial velocity variable sdB stars from the SPY project. Radial velocity curves have been measured. Effective temperatures, surface gravities and helium abundances are determined, as well as metal abundances. We highlight some strong abundance anomalies.
        Publication date
        2005
        Published in
        In: Procs of the 14th European Workshop on White Dwarfs - ASP Conference Series 334
        Other links
        http://hdl.handle.net/2299/1448
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