University of Hertfordshire

By the same authors

Double Degenerate and Progenitors of Supernovae Type Ia

Research output: Chapter in Book/Report/Conference proceedingConference contribution


  • R. Napiwotzki
  • L. Yungelson
  • G. Nelemans
  • T.R. Marsh
  • B. Leibundgut
  • A. Renzini
  • D. Homeier
  • D. Koester
  • S. Moehler
  • N. Christlieb
  • D. Reimers
  • H. Drechsel
  • U. Heber
  • C. Karl
  • E.M. Pauli
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Original languageEnglish
Title of host publicationIn: Spectroscopically and Spatially Resolving the Components of Close Binary Stars - ASP Conf Procs 318
PublisherAstronomical Society of the Pacific
ISBN (Print)1-58381-179-6, 978-1-58381-253-2
Publication statusPublished - 2004


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.


Original paper can be found at: Astronomical Society of the Pacific

ID: 144054