Double degenerates from the supernova Ia progenitor survey (SPY)

C. Karl; R. Napiwotzki; U. Heber; T. Lisker; G. Nelemans; N. Christlieb; D. Reimers

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Double degenerates from the supernova Ia progenitor survey (SPY)

C. Karl·R. Napiwotzki·U. Heber·T. Lisker·G. Nelemans·N. Christlieb·D. Reimers

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Abstract

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.

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C. Karl, R. Napiwotzki, U. Heber, T. Lisker, G. Nelemans, N. Christlieb, D. Reimers. 2002-09-30. Double degenerates from the supernova Ia progenitor survey (SPY). https://arxiv.org/abs/astro-ph/0210004

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