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Journal Articles Astronomy and Astrophysics - A&A Year : 2000

Type Ia supernova rate at $z \sim 0.1$

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D P. Hardin
  • Function : Author
C. Afonso
  • Function : Author
C. Alard
  • Function : Author
J N. Albert
  • Function : Author
A. Amadon
J. Andersen
  • Function : Author
E. Aubourg
  • Function : Author
F. Bauer
  • Function : Author
J P. Beaulieu
  • Function : Author
G. Blanc
S. Char
  • Function : Author
X. Charlot
  • Function : Author
F. Couchot
C. Coutures
  • Function : Author
R. Ferlet
  • Function : Author
J F. Glicenstein
  • Function : Author
B. Goldman
  • Function : Author
A. Gould
  • Function : Author
D. Graff
  • Function : Author
M H. Gros
  • Function : Author
J. Kat
  • Function : Author
T. Lasserre
  • Function : Author
E. Lesquoy
  • Function : Author
C. Loup
  • Function : Author
C. Magneville
  • Function : Author
J B. Marquette
E. Maurice
  • Function : Author
A. Milsztajn
  • Function : Author
N. Palanque-Delabrouille
  • Function : Author
L. Prevot
  • Function : Author
J. Rich
  • Function : Author
M. Spiro
  • Function : Author
A. Vidal-Madjar
  • Function : Author
L. Vigroux
  • Function : Author
S. Zylberajch
  • Function : Author

Abstract

We present the EROS nearby supernova ($z \sim 0.02 - 0.2$) search and the analysis of the first year of data (1997). A total of 80 square degrees were surveyed. Eight supernov{æ} were detected, four of which were spectroscopically identified as type Ia supernov{æ}. The search efficiency was determined with a Monte-Carlo simulation taking into account the efficiencies for both supernova detection and host galaxy identification. Assuming that for a given galaxy the supernova rate is proportional to the galactic luminosity, we compute a type Ia supernova explosion rate of: ${\cal R} = 0.44 {}_{-0.21}^{+0.35} {}_{-0.07}^{+0.13} h^2: / 10^{10} \lbsun / 100 {\rm yrs}$ at an average redshift of $\sim 0.1$ where the errors are respectively statistical and systematic (type misidentification included).

Dates and versions

in2p3-00018511 , version 1 (01-03-2001)

Identifiers

Cite

D P. Hardin, C. Afonso, C. Alard, J N. Albert, A. Amadon, et al.. Type Ia supernova rate at $z \sim 0.1$. Astronomy and Astrophysics - A&A, 2000, 362, pp.419-425. ⟨in2p3-00018511⟩
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