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Evolution in the Volumetric Type Ia Supernova Rate from the Supernova Legacy Survey

By K. Perrett, M. Sullivan, A. Conley, S. Gonzalez-Gaitan, R. Carlberg, D. Fouchez, P. Ripoche, J. D. Neill, P. Astier, D. Balam, C. Balland, S. Basa, J. Guy, D. Hardin, I. M. Hook, D. A. Howell, R. Pain, N. Palanque-Delabrouille, C. Pritchet, N. Regnault, J. Rich, V. Ruhlmann-Kleider, S. Baumont, C. Lidman, S. Perlmutter and E. S. Walker

Abstract

Accepted in AJWe present a measurement of the volumetric Type Ia supernova (SN Ia) rate (SNR_Ia) as a function of redshift for the first four years of data from the Canada-France-Hawaii Telescope (CFHT) Supernova Legacy Survey (SNLS). This analysis includes 286 spectroscopically confirmed and more than 400 additional photometrically identified SNe Ia within the redshift range 0.

Topics: [ PHYS.ASTR.SR ] Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], [ SDU.ASTR.SR ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR]
Publisher: American Astronomical Society
Year: 2012
DOI identifier: 10.1088/0004-6256
OAI identifier: oai:HAL:in2p3-00724892v1
Provided by: Hal-Diderot
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