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New Results from the Supernova Ia Progenitor Survey

  • R. Napiwotzki
  • , C. Karl
  • , G. Nelemans
  • , L. Yungelson
  • , N. Christlieb
  • , H. Drechsel
  • , U. Heber
  • , D. Homeier
  • , D. Koester
  • , J. Kruk
  • , B. Leibundgut
  • , T.R. Marsh
  • , S. Moehler
  • , A. Renzini
  • , D. Reimers

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

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Abstract

We report on a systematic radial velocity survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae: SPY (ESO Supernovae Ia Progenitor surveY). More than 1000 white dwarfs and pre-white dwarfs were observed with the VLT. Our aim is to perform a statistically significant test of the DD scenario. SPY detected more than 100 new binary white dwarfs, dramatically increasing the number of known DDs. System parameters are determined from ongoing follow-up observations. Our sample includes systems with masses close to the Chandrasekhar limit and a probable SN Ia progenitor candidate.
Original languageEnglish
Title of host publicationIn: Procs of the 14th European Workshop on White Dwarfs - ASP Conference Series 334
PublisherAstronomical Society of the Pacific
Pages375-80
ISBN (Print)1-58381-197-4, 978-1-58381-268-6
Publication statusPublished - 2005

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