Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles The Astrophysical Journal Year : 2006

Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies

M. Sullivan
  • Function : Author
C. J. Pritchet
  • Function : Author
A. Hodsman
  • Function : Author
J. D. Neill
  • Function : Author
D. A Howell
  • Function : Author
R. G Carlberg
  • Function : Author
D. Balam
  • Function : Author
A. Conley
  • Function : Author
S. Fabbro
  • Function : Author
I. Hook
  • Function : Author
K. Perrett
  • Function : Author
J. Bronder
  • Function : Author
R. S. Ellis
  • Function : Author
S. Perlmutter
  • Function : Author

Abstract

(ABRIDGED) We show that Type Ia supernovae (SNe Ia) are formed within both very young and old stellar populations, with observed rates that depend on the stellar mass and mean star-formation rates (SFRs) of their host galaxies. Models where the SN Ia rate depends solely on host galaxy stellar mass are ruled out with 99% confidence. Our analysis is based on 100 spectroscopically-confirmed SNe Ia, plus 24 photometrically-classified events, all from the Supernova Legacy Survey (SNLS) and distributed over 0.2

Dates and versions

in2p3-00087104 , version 1 (21-07-2006)

Identifiers

Cite

M. Sullivan, D. Le Borgne, C. J. Pritchet, A. Hodsman, J. D. Neill, et al.. Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies. The Astrophysical Journal, 2006, 648, pp.868-883. ⟨10.1086/506137⟩. ⟨in2p3-00087104⟩
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