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arXiv 0912.3777astro-ph.HEastro-ph.IM
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用费米LAT测量Cosmic-Ray质子谱的方法

Methods for Measuring the Cosmic-Ray Proton Spectrum With the Fermi LAT

P. D. Smith, R. E. Hughes, B. L. Winer, T. W. Wood

摘要:

费米伽马射线太空望远镜于2008年6月发射升空,机载大面积望远镜(LAT)自同年8月以来一直在收集数据。LAT目前被用于研究高能天体物理学中的广泛科学主题,其中之一是高能宇宙射线的研究。LAT最近已经证明了它测量宇宙射线电子的能力,费米LAT合作组织已经发表了20 GeV至1 TeV能量范围内高能宇宙射线电子谱的测量结果。一些方法进行类似的分析,以测量宇宙射线质子谱使用LAT将重点展开重建的质子能量。

英文摘要:

The Fermi Gamma-Ray Space Telescope was launched in June 2008 and the onboard Large Area Telescope (LAT) has been collecting data since August of that same year. The LAT is currently being used to study a wide range of science topics in high-energy astrophysics, one of which is the study of high-energy cosmic rays. The LAT has recently demonstrated its ability to measure cosmic-ray electrons, and the Fermi LAT Collaboration has published a measurement of the high-energy cosmic-ray electron spectrum in the 20 GeV to 1 TeV energy range. Some methods for performing a similar analysis to measure the cosmic-ray proton spectrum using the LAT will be presented with emphasis on unfolding the reconstructed proton energy.

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