标题： 阿贝尔星系团中的超新星率及其对金属丰度的影响 显示英文标题

标题： Supernova rates in Abell galaxy clusters and implications for metallicity

摘要： 超新星（SNe）在星系团的星系际介质（ICM）的金属富集过程中起着至关重要的作用。超新星不仅是金属的主要来源，还可能通过星风将富集的气体从星系中喷出提供能量。然而，迄今为止，尚未有星系团中超新星率的测量结果发表。我们启动了一项计划，利用维尔士天文台1米望远镜在163个中等红移（0.06<z<0.2）阿贝尔星系团中寻找超新星。我们的项目已经发现了11个在z=0.1-0.24之间被光谱确认的超新星，以及若干未确认的超新星。我们介绍了这个项目的科学目标，并基于星系际超新星的贡献，讨论了基于星系团X射线观测所指示的中心增强金属丰度的一种新颖解释。 显示英文摘要

摘要： 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<z<0.2) Abell clusters, using the Wise Observatory 1m telescope. Our program has already discovered 11 spectroscopically confirmed SNe at z=0.1 - 0.24, and several unconfirmed SNe. We present the main scientific goals of this project, and discuss a novel explanation for the centrally enhanced metal abundances indicated by X-ray observations of galaxy clusters, based on the contribution of intergalactic SNe.