SUPERNOVA RATES IN ABELL GALAXY CLUSTERS AND IMPLICATIONS FOR METALLICITY
AVISHAY GAL-YAM and DAN MAOZ
School of Physics and Astronomy and Wise Observatory,
Tel Aviv University, Tel Aviv 69978, Israel


Abstract:
Supernovae (SNe) play a critical role in the metal enrichment of the intra-cluster medium (ICM) in galaxy clusters. Not only are SNe the main source for metals, but they may also supply the energy to eject enriched gas from galaxies by winds. However, measurements of SN rates in galaxy clusters have not been published to date. We have initiated a program to find SNe in 163 medium-redshift ($0.06