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        Double Degenerate and Progenitors of Supernovae Type Ia

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        901581.pdf (PDF, 386Kb)
        Author
        Napiwotzki, R.
        Yungelson, L.
        Nelemans, G.
        Marsh, T.R.
        Leibundgut, B.
        Renzini, A.
        Homeier, D.
        Koester, D.
        Moehler, S.
        Christlieb, N.
        Reimers, D.
        Drechsel, H.
        Heber, U.
        Karl, C.
        Pauli, E.M.
        Attention
        2299/1415
        Abstract
        We report on systematic radial velocity surveys for white dwarf { white dwarf binaries (double degenerates { DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carried out at the VLT. A large sample of DD will allow us to put strong constraints on the phases of close binary evolution of the progenitor systems and to perform an observational test of the DD scenario for supernovae of type Ia. We explain how parameters of the binaries can be derived from various methods. Results for a sample of DDs are presented and discussed.
        Publication date
        2004
        Published in
        In: Spectroscopically and Spatially Resolving the Components of Close Binary Stars - ASP Conf Procs 318
        Other links
        http://hdl.handle.net/2299/1415
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