We present the results of several surveys for supernovae (SNe) in galaxy clusters. SNe discovered in deep, archival HST images were used to measure the cluster SN Ia rate to z=1. A search for SNe in nearby (0.06 < z < 0.2) Abell galaxy clusters yielded 15 SNe, 12 of which were spectroscopically confirmed. Of these, 7 are cluster SNe Ia, which we will use to measure the SN Ia rate in nearby clusters. This search has also discovered the first convincing examples of intergalactic SNe. We conclude with a brief description of ongoing and future cluster SN surveys.
@article{arxiv.astro-ph/0307520,
title = {Supernovae in Galaxy Clusters},
author = {A. Gal-Yam and D. Maoz and K. Sharon and F. Prada and P. Guhathakurta and A. V. Filippenko},
journal= {arXiv preprint arXiv:astro-ph/0307520},
year = {2007}
}
Comments
To be published in the proceedings of IAU Colloquium 192 ``Supernovae (10 years of SN1993J)'', Valencia, Spain, eds. J.M. Marcaide and K.W. Weiler