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A new measurement of the Cosmic-Ray Electron Spectrum with Fermi-LAT

机译:Fermi-LAT对宇宙射线电子光谱的新测量

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Cosmic-ray electrons provide a probe of the origin and propagation mechanisms of cosmic rays in local galactic environment The Large Area Telescope (LAT), on board the Fermi mission, is a pair-conversion space telescope for high-energy electromagnetic radiation, operating in low Earth orbit since June 2008. The LAT has collected the largest high-energy cosmic-ray electron sample to date, with more than 10k events above 1 TeV. The event selection and reconstruction capability exploits the performance of the recently improved event-level analysis developed by the Fermi-LAT Collaboration. We present a new measurement of the inclusive spectrum of cosmic-ray electrons and positrons performed on seven years of data, in an energy range from 7 GeV up to 2 TeV.
机译:宇宙射线电子为宇宙银在局部银河环境中的起源和传播机理提供了探测。费米任务上的大面积望远镜(LAT)是用于高能电磁辐射的双转换空间望远镜,其工作原理是:自2008年6月以来,地球低轨道运行。LAT收集了迄今为止最大的高能宇宙射线电子样本,超过1 TeV发生了超过1万个事件。事件选择和重建功能利用了Fermi-LAT Collaboration开发的最近改进的事件级别分析的性能。我们提出了一项对七年数据进行的宇宙射线电子和正电子的包含光谱的新测量,其能量范围为7 GeV到2 TeV。

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