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arXiv 1208.5897astro-ph.HE
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多信使天文学和CTA:TeV宇宙射线和电子

Multi messenger astronomy and CTA: TeV cosmic rays and electrons

Piergiorgio Picozza, Mirko Boezio

摘要:

宇宙射线是太阳、银河和河外物质的样本。它们的起源和性质是现代天体物理学中最有趣的问题之一。宇宙中最具能量的事件和活跃的物体:超新星爆炸、超新星、相对论喷流、活动星系核等都被认为是宇宙射线的来源,尽管还没有找到明确的证据。电子虽然占宇宙辐射的1%左右,具有独特的特征,提供了关于银河系中宇宙射线的起源和传播的重要信息,这些信息是无法从研究宇宙射线核成分,因为它们的能量损失过程不同。在本文中,我们将分析,讨论实验的不确定性和挑战,最近的测量宇宙射线核,特别是电子的能量从几十个GeV到TeV区域。

英文摘要:

Cosmic rays are a sample of solar, galactic and extragalactic matter. Their origin and properties are one of the most intriguing question in modern astrophysics. The most energetic events and active objects in the Universe: supernovae explosion, pulsars, relativistic jets, active galactic nuclei, have been proposed as sources of cosmic rays although unambiguous evidences have still to be found. Electrons, while comprising ~1% of the cosmic radiation, have unique features providing important information regarding the origin and propagation of cosmic rays in the Galaxy that is not accessible from the study of the cosmic-ray nuclear components due to their differing energy-loss processes. In this paper we will analyse, discussing the experimental uncertainties and challenges, the most recent measurements on cosmic-ray nuclei and, in particular, electrons with energies from tens of GeV into the TeV region.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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