We report on follow-up observations of double degenerate (DD) white dwarfs from the Supernovae Ia Progenitor Survey (SPY). Orbital parameters of four systems, including a massive short period system, are presented.
CITATION STYLE
Karl, C., Napiwotzki, R., Heber, U., Lisker, T., Nelemans, G., Christlieb, N., & Reimers, D. (2003). Double Degenerates from the Supernova IA Progenitor Survey (SPY). In White Dwarfs (pp. 43–46). Springer Netherlands. https://doi.org/10.1007/978-94-010-0215-8_12
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