The Supernova Type Ia Rate Evolution with SNLS

J. D. Neill , M. Sullivan , D. Balam , C. J. Pritchet , D. A. Howell , K. Perrett , P. Astier , E. Aubourg

show 31 more authors

S. Basa R. G. Carlberg A. Conley S. Fabbro D. Fouchez J. Guy I. Hook R. Pain N. Palanque-Delabrouille N. Regnault J. Rich R. Taillet G. Aldering P. Antilogus V. Arsenijevic C. Balland S. Baumont J. Bronder R. S. Ellis M. Filiol A. C. Gon\c{c}alves D. Hardin M. Kowalski C. Lidman V. Lusset M. Mouchet A. Mourao S. Perlmutter P. Ripoche D. Schlegel C. Tao

Authors on Pith no claims yet

classification 🌌 astro-ph

keywords ratesupernovaevolutiontypeassociatedcomponentmodelsample

0 comments

read the original abstract

We present a progress report on a project to derive the evolution of the volumetric supernova Type Ia rate from the Supernova Legacy Survey. Our preliminary estimate of the rate evolution divides the sample from Neill et al. (2006) into two redshift bins: 0.2 < z < 0.4, and 0.4 < z < 0.6. We extend this by adding a bin from the sample analyzed in Sullivan et al. (2006) in the range 0.6 < z < 0.75 from the same time period. We compare the derived trend with previously published rates and a supernova Type Ia production model having two components: one component associated closely with star formation and an additional component associated with host galaxy mass. Our observed trend is consistent with this model, which predicts a rising SN Ia rate out to at least z=2.

This paper has not been read by Pith yet.

The Supernova Type Ia Rate Evolution with SNLS

discussion (0)