Type la supernova rate at a redshift of ∼0.1

G. Blanc, C. Afonso, C. Alard, J. N. Albert, G. Aldering, A. Amadon, J. Andersen, R. Ansari, É Aubourg, C. Balland, P. Bareyre, J. P. Beaulieu, X. Charlot, A. Conley, C. Coutures, T. Dahlén, F. Derue, X. Fan, R. Ferlet, G. FolatelliP. Fouqué, G. Garavini, J. F. Glicenstein, B. Goldman, A. Goobar, A. Gould, D. Graff, M. Gros, J. Haissinski, C. Hamadache, D. Hardin, I. M. Hook, J. De Kat, S. Kent, A. Kim, T. Lasserre, L. Le Guillou, É Lesquoy, C. Loup, C. Magneville, J. B. Marquette, É Maurice, A. Maury, A. Milsztajn, M. Meniez, M. Mouchet, H. Newberg, S. Nobili, N. Palanque-Delabrouille, O. Perdereau, L. Prévot, Y. R. Rahal, N. Regnault, J. Rich, P. Ruiz-Lapuente, M. Spiro, P. Tisserand, A. Vidal-Madjar, L. Vigroux, N. A. Walton, S. Zylberajch

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


We present the type la rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type la were discovered. The measurement of the detection efficiency, using a Monte Carlo simulation, provides the type la supernova explosion rate at a redshift ∼0.13. The result is 0.125-0.034-0.028+0.044+0.028 h702 SNu where 1 SNu= 1 SN / 1010 L B / century. This value is compatible with the previous EROS measurement (Hardin et al. 2000), done with a much smaller sample, at a similar redshift. Comparison with other values at different redshifts suggests an evolution of the type la supernova rate.

Original languageEnglish (US)
Pages (from-to)881-894
Number of pages14
JournalAstronomy and astrophysics
Issue number3
StatePublished - 2004


  • Cosmology: miscellaneous
  • Galaxies: evolution
  • Methods: observational
  • Stars: supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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