Double Degenerate and Progenitors of Supernovae Type Ia

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. and Pauli, E.M. (2004) Double Degenerate and Progenitors of Supernovae Type Ia. In: UNSPECIFIED.

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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.

Item Type	Conference or Workshop Item (Other)
Additional information	Original paper can be found at: http://www.astrosociety.org/pubs/cs/confseries.html#2--Copyright Astronomical Society of the Pacific
Date Deposited	15 May 2025 16:18
Last Modified	25 Feb 2026 00:06