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arXiv 1109.1672astro-ph.HE
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低能宇宙射线与星际介质的核相互作用

Nuclear interactions of low-energy cosmic rays with the interstellar medium

V. Tatischeff, J. Kiener

摘要:

动能低于每核子1 GeV的宇宙射线被认为在星际介质的化学和动力学中起着关键作用。它们也被认为负责轻元素Li、Be和B的核合成。然而,人们对低能宇宙射线的通量和成分知之甚少,因为太阳调制效应使得不可能在地球附近直接探测到这些粒子。我们首先讨论了轻元素给宇宙线研究带来的信息。然后,我们讨论了探测低能宇宙射线与星际核相互作用产生的核γ射线谱线发射的前景。

英文摘要:

Cosmic rays of kinetic energies below ~1 GeV per nucleon are thought to play a key role in the chemistry and dynamics of the interstellar medium. They are also thought to be responsible for nucleosynthesis of the light elements Li, Be, and B. However, very little is known about the flux and composition of low-energy cosmic rays since the solar modulation effect makes impossible a direct detection of these particles near Earth. We first discuss the information that the light elements have brought to cosmic-ray studies. We then discuss the prospects for detection of nuclear gamma-ray line emission produced by interaction of low-energy cosmic rays with interstellar nuclei.

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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