arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1406.0974astro-ph.HE
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电离作为cosmic ray加速的指标

Ionisation as indicator for cosmic ray acceleration

Florian Schuppan, Christian Röken, Natalie Fedrau, Julia Becker Tjus

摘要:

大质量恒星的天体球和风泡被认为是能量为$E\lesssim 1\,$ TeV的宇宙射线源。这些粒子不能直接探测到,但它们对周围物质的影响,特别是原子和分子氢的电离,可以导致可观察到的特征。为了研究(亚)TeV宇宙射线的潜在源,可以对由具有动能$E_\mathrm{p}\ge 280\,$ MeV的宇宙射线质子与环境氢的质子-质子相互作用引起的伽马射线发射和由具有动能$E_\mathrm{p}< 280\,$ MeV的宇宙射线质子引起的电离进行相关性研究。

英文摘要:

Astrospheres and wind bubbles of massive stars are believed to be sources of cosmic rays with energies $E\lesssim 1\,$TeV. These particles are not directly detectable, but their impact on surrounding matter, in particular ionisation of atomic and molecular hydrogen, can lead to observable signatures. A correlation study of both gamma ray emission, induced by proton-proton interactions of cosmic ray protons with kinetic energies $E_\mathrm{p}\ge 280\,$MeV with ambient hydrogen, and ionisation induced by cosmic ray protons of kinetic energies $E_\mathrm{p}< 280\,$MeV can be performed in order to study potential sources of (sub)TeV cosmic rays.

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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