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arXiv 0904.1507astro-ph.HEgr-qchep-ph
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具有星暴的活动星系核:超高能宇宙射线的来源

Active Galactic Nuclei with Starbursts: Sources for Ultra High Energy Cosmic Rays

P. L. Biermann, J. K. Becker, L. Caramete, L. A. Gergely, I. C. Maris, A. Meli, V. de Souza, T. Stanev

摘要:

超高能宇宙射线事件目前显示出一个光谱,我们在这里解释为银河系宇宙射线由于在射电星系Cen A的星暴推出的能量由相对论性喷流的冲击。膝关节特征和银河系宇宙射线中能量立即更高的粒子然后变成大部分超高能宇宙射线。这意味着所有的超高能宇宙射线都是重原子核。如果观测到的大多数超高能事件来自射电星系Cen A,并被星系际磁场散射到大部分天空,那么这幅图是可行的。

英文摘要:

Ultra high energy cosmic ray events presently show a spectrum, which we interpret here as galactic cosmic rays due to a starburst in the radio galaxy Cen A pushed up in energy by the shock of a relativistic jet. The knee feature and the particles with energy immediately higher in galactic cosmic rays then turn into the bulk of ultra high energy cosmic rays. This entails that all ultra high energy cosmic rays are heavy nuclei. This picture is viable if the majority of the observed ultra high energy events come from the radio galaxy Cen A, and are scattered by intergalactic magnetic fields across most of the sky.

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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