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arXiv 0707.3797astro-ph
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宇宙射线的起源和传播(一些重点)

Origin and propagation of cosmic rays (some highlights)

Igor V. Moskalenko

摘要:

在日球层深处探测到高能粒子宇宙射线(CR)意味着CR粒子的寿命至少有三个明显不同的阶段:加速、在星际介质(ISM)中传播和在日球层中传播。CR与气体、辐射和磁场相互作用产生的伽马射线可以用来研究它们在不同位置的光谱。尽管如此,准确的直接测量日光层内的CR物种(如它们的光谱和丰度)对于理解它们的起源和传播是非常重要的。在本文中,重点是最近的进展,特别是在那些GLAST和PAMELA观测可以导致我们的理解CRs的进一步进展。

英文摘要:

The detection of high-energy particles, cosmic rays (CRs), deep inside the heliosphere implies that there are, at least, three distinctly different stages in the lifetime of a CR particle: acceleration, propagation in the interstellar medium (ISM), and propagation in the heliosphere. Gamma rays produced by interactions of CRs with gas, radiation, and magnetic fields can be used to study their spectra in different locations. Still, accurate direct measurements of CR species inside the heliosphere (such as their spectra and abundances) are extremely important for the understanding of their origin and propagation. In this paper, an emphasis is made on very recent advances and especially on those where GLAST and PAMELA observations can lead to further progress in our understanding of CRs.

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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