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Close Binary White Dwarfs and Supernovae la

Published online by Cambridge University Press:  22 February 2018

R. Napiwotzki
Affiliation:
Dept. of Physics & Astronomy, University of Leicester, UK Rerneis-Sternwarte, Bamberg, Germany
C. Karl
Affiliation:
Rerneis-Sternwarte, Bamberg, Germany
G. Nelemans
Affiliation:
Institute of Astronomy, Cambridge, UK
L. Yungelson
Affiliation:
Inst. of Astronomy, Moscow, Russia
N. Christlieb
Affiliation:
Hamburger Sternwarte, Universität Hamburg, Germany
H. Drechsel
Affiliation:
Rerneis-Sternwarte, Bamberg, Germany
U. Heber
Affiliation:
Rerneis-Sternwarte, Bamberg, Germany
D. Homeier
Affiliation:
Dept. of Physics & Astronomy, University of Georgia, USA
B. Leibundgut
Affiliation:
European Southern Observatory, Garching, Germany
D. Koester
Affiliation:
Inst. für Theo. Physik und Astrophysik, Universität Kiel, Germany
T. R. Marsh
Affiliation:
Department of Physics, University of Warwick, UK
S. Moehler
Affiliation:
Inst. für Theo. Physik und Astrophysik, Universität Kiel, Germany
E.-M. Pauli
Affiliation:
Rerneis-Sternwarte, Bamberg, Germany
D. Reimers
Affiliation:
Hamburger Sternwarte, Universität Hamburg, Germany
A. Renzini
Affiliation:
European Southern Observatory, Garching, Germany

Abstract

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We report on the current status of radial velocity surveys for white dwarf binaries (double degenerates DDs) including SPY (ESO Supernovae la 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.

Resumen

Resumen

Informamos sobre el estado actual de los “surveys” de velocidades radiales para binarias de euanas blancas (degeneradas dobles - DDs) incluyendo SPY (Exploración ESO de progenitoras de supernovas Ia) que reeientemente se llevaron a cabo en el VLT. Una amplia muestra de DDs nos permitirá poner fuertes restricciones sobre las fases evolutivas de los sistemas progenitores de binarias cereanas y también llevar a cabo pruebas observacionales del escenario DD para supernovas de tipo Ia.

Type
The Contributed Papers
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

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