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arXiv 2211.04522astro-ph.HE
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来自Andromeda galaxy过去活动的超高能宇宙射线

Ultra high energy cosmic rays from past activity of Andromeda galaxy

V. N. Zirakashvili, V. S. Ptuskin, S. I. Rogovaya

摘要:

结果表明,仙女座星系中与超大质量黑洞的生长和过去活动有关的相对论喷流可能是能量大于$10^{15}$ eV的宇宙射线的主要来源。大部分的宇宙射线能量都与喷流的弓形激波有关,该激波产生多PeV的宇宙射线,成分较轻。具有重成分的最高能量宇宙射线产生于喷流本身。计算了仙女座星系产生的高能粒子传播到地球的光谱,并与观测结果进行了比较。

英文摘要:

It is shown that the relativistic jets associated with the growth and past activity of the supermassive black hole in the Andromeda galaxy could be the main source of cosmic rays with energies above $10^{15}$ eV. Most of the cosmic ray energy is related to a bow shock of the jet that produces multi-PeV cosmic rays with light composition. The highest energy cosmic rays with heavy composition are produced in the jet itself. The spectra of energetic particles produced in Andromeda galaxy and propagated to the Earth are calculated and compared with observations.

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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