Hostname: page-component-745bb68f8f-hvd4g Total loading time: 0 Render date: 2025-01-12T21:08:52.211Z Has data issue: false hasContentIssue false
  • English
  • Français

Double White Dwarf Merger Rates

Published online by Cambridge University Press:  17 January 2013

Silvia Toonen ,
Gijs Nelemans  and
Simon Portegies Zwart
Silvia Toonen
Affiliation:
Department of Astrophysics, IMAPP, Radboud University Nijmegen, P.O. Box 9010, NL-6500 GL, Nijmegen, the Netherlands email: [email protected]
Gijs Nelemans
Affiliation:
Department of Astrophysics, IMAPP, Radboud University Nijmegen, P.O. Box 9010, NL-6500 GL, Nijmegen, the Netherlands email: [email protected]
Simon Portegies Zwart
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA, Leiden, The Netherlands
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Type Ia supernovae (SNe Ia) are very successfully used as standard candles on cosmological distance scales, but so far the nature of the progenitor(s) is unclear. A possible scenario for SNe Ia are merging carbon/oxygen white dwarfs with a combined mass exceeding the Chandrasekhar mass. We determine the theoretical rates and delay time distribution of these mergers for two different common envelope prescriptions and metallicities. The shape of the delay time distributions is rather insensitive to the assumptions. The normalization is a factor ~3–13 too low compared to observations.

Keywords

stars: evolutionwhite dwarfs — binaries: close
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Issue S281: Binary Paths to Type Ia Supernovae Explosions , July 2011 , pp. 223 - 224
Copyright
Copyright © International Astronomical Union 2013

References

Boissier, S. & Prantzos, N. 1999, MNRAS, 307, 857Google Scholar
Cappellaro, E., Evans, R., & Turatto, M. 1999, A&A, 351, 459Google Scholar
Hurley, J. R., Pols, O. R., & Tout, C. A. 2000, MNRAS, 315, 543Google Scholar
Maoz, D., Manucci, F., Li, W., & Filippenko, A. V. 2011, MNRAS, 412, 1508CrossRefGoogle Scholar
Nelemans, G., Verbunt, F., Yungelson, L. R. & Portegies Zwart, S. F. 2000, A&A, 360, 1011Google Scholar
Nelemans, G., Yungelson, L. R., Portegies Zwart, S. F., & Verbunt, F. 2001, A&A, 365, 491Google Scholar
Portegies, S. F. & Verbunt, F. 1996, A&A, 309, 179Google Scholar
Webbink, R. F. 1984, ApJ, 277, 355CrossRefGoogle Scholar