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Issue A&A
Volume 423, Number 3, September I 2004
Page(s) 881 - 894
Section Extragalactic astronomy
DOI 10.1051/0004-6361:20035948



A&A 423, 881-894 (2004)
DOI: 10.1051/0004-6361:20035948

Type Ia supernova rate at a redshift of ~0.1

G. Blanc1, 2, 3, C. Afonso1, 4, 5, 6, C. Alard7, J. N. Albert8, G. Aldering9, A. Amadon1, J. Andersen10, R. Ansari8, É. Aubourg1, C. Balland11, 12, P. Bareyre1, 4, J. P. Beaulieu13, X. Charlot1, A. Conley9, C. Coutures1, T. Dahlén14, F. Derue11, X. Fan15, R. Ferlet13, G. Folatelli16, P. Fouqué17, 18, G. Garavini16, J. F. Glicenstein1, B. Goldman1, 4, 5, 6, A. Goobar16, A. Gould1, 19, D. Graff19, M. Gros1, J. Haissinski8, C. Hamadache1, D. Hardin11, I. M. Hook20, J. de Kat1, S. Kent21, A. Kim9, T. Lasserre1, L. Le Guillou1, É. Lesquoy1, 13, C. Loup13, C. Magneville1, J. B. Marquette13, É. Maurice22, A. Maury17, A. Milsztajn1, M. Moniez8, M. Mouchet23, 3, H. Newberg24, S. Nobili16, N. Palanque-Delabrouille1, O. Perdereau8, L. Prévot22, Y. R. Rahal8, N. Regnault8, 25, 9, J. Rich1, P. Ruiz-Lapuente26, M. Spiro1, P. Tisserand1, A. Vidal-Madjar13, L. Vigroux1, N. A. Walton27 and S. Zylberajch1

1  DSM/DAPNIA, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France
2  Osservatorio Astronomico di Padova, INAF, vicolo dell'Osservatorio 5, 35122 Padova, Italy
    e-mail: blanc@pd.astro.it
3  Université Paris 7 - Denis Diderot, 2 place Jussieu, 75005 Paris, France
4  Collège de France, Physique Corpusculaire et Cosmologie, IN2P3 CNRS, 11 pl. M. Berthelot, 75231 Paris Cedex, France
5  Department of Astronomy, New Mexico State University, Las Cruces, NM 88003-8001, USA
6  NASA/Ames Research Center, Mail Stop 244, Moffet Field, CA 94035, USA
7  GEPI, Observatoire de Paris, 77 avenue de l'Observatoire, 75014 Paris, France
8  Laboratoire de l'Accélérateur Linéaire, IN2P3 CNRS, Université Paris-Sud, 91405 Orsay Cedex, France
9  Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA 94720, USA
10  Astronomical Observatory, Copenhagen University, Juliane Maries Vej 30, 2100 Copenhagen, Denmark
11  Laboratoire de Physique Nucléaire et de Hautes Énergies, IN2P3 - CNRS - Universités Paris 6 et Paris 7, 4 place Jussieu, 75252 Paris Cedex 05, France
12  Institut d'Astrophysique Spatiale, Bâtiment 121, Université Paris 11, 91405 Orsay Cedex, France
13  Institut d'Astrophysique de Paris, INSU CNRS, 98 bis boulevard Arago, 75014 Paris, France
14  Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA
15  Steward Observatory, The University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721-0065, USA
16  Department of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
17  European Southern Observatory (ESO), Casilla 19001, Santiago 19, Chile
18  Observatoire Midi-Pyrénées, 14 avenue Edouard Belin, 31400 Toulouse, France
19  Departments of Astronomy and Physics, Ohio State University, Columbus, OH 43210, USA
20  Department of Physics, University of Oxford, Nuclear and Astrophysics laboratory, Keble Road, Oxford OX1 3RH, UK
21  Fermilab Wilson and Kirk Roads, Batavia, IL 60510-0500, USA
22  Observatoire de Marseille, 2 pl. Le Verrier, 13248 Marseille Cedex 04, France
23  LUTH, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon Cedex, France
24  Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, USA
25  Laboratoire Leprince-Ringuet, LLR/École Polytechnique, Route de Saclay, 91128 Palaiseau Cedex, France
26  Department of Astronomy, University of Barcelona, Barcelona, Spain
27  Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK

(Received 24 December 2003 / Accepted 28 April 2004 )

Abstract
We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection efficiency, using a Monte Carlo simulation, provides the type Ia supernova explosion rate at a redshift ~0.13. The result is $0.125^_\ h_^2$ SNu where 1 SNu = 1 SN / $10^\ {L}_{\odot}^B$ / 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 Ia supernova rate.


Key words: stars: supernovae: general -- galaxies: evolution -- cosmology: miscellaneous -- methods: observational

SIMBAD Objects



© ESO 2004


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