Galaxy Clusters with the Fermi-LAT: Status and Implications for Cosmic Rays and Dark Matter Physics
Galaxy Clusters with the Fermi-LAT: Status and Implications for Cosmic Rays and Dark Matter Physics
复制标题
费米-LAT 星系团：宇宙射线和暗物质物理学的现状和影响
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
S. Zimmer
中科院分区：
文献类型：
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作者：
S. Zimmer
星系团是已知宇宙中质量最大的系统。它们拥有相对论性宇宙射线群，被认为是由大量暗物质引力束缚的，在适当的条件下可以产生可检测的γ射线。在费米卫星发射之前，人们乐观地预测，通过其主要仪器大面积望远镜（LAT）的观测，星系团将被确定为γ射线明亮的天体。然而，尽管做出了许多努力，甚至一个单一的集群检测仍然悬而未决。
Galaxy clusters are the most massive systems in the known universe. They host relativistic cosmic ray populations and are thought to be gravitationally bound by large amounts of Dark Matter, which under the right conditions could yield a detectable γ -ray flux. Prior to the launch of the Fermi satellite, predictions were optimistic that Galaxy clusters would be established as γ -ray-bright objects by observations through its prime instrument, the Large Area Telescope (LAT). Yet, despite numerous efforts, even a single cluster detection is still pending.