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        Radial Velocity Variable sdO/Bs from SPY - Preliminary Orbits of Three New Short Period Binaries

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        902455.pdf (PDF, 526Kb)
        Author
        Geier, S.
        Heber, U.
        Napiwotzki, R.
        Attention
        2299/2423
        Abstract
        We present new results from follow-up time-resolved spectroscopy of radial velocity variable hot subdwarfs from the SPY project. Medium resolu- tion spectra were taken at the ESO NTT. Preliminary orbital solutions are presented for three single-lined sdO/B binaries. The orbital periods of all binaries are short and the companions are most likely white dwarfs or late main-sequence stars. Follow-up time-resolved spectroscopy is necessary to measure the orbital parameters with higher accuracy. Light curves should be taken in order to search for reflection effects and or eclipses.
        Publication date
        2008
        Published in
        In: Hot Subdwarf Stars and Related Objects - ASP Conf Series 392
        Other links
        http://hdl.handle.net/2299/2423
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