arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0705.3184astro-ph
收藏

宇宙射线在银河系中的数值传播

Numerical Propagation of Cosmic Rays in the Galaxy

Daniel De Marco, Pasquale Blasi, Todor Stanev

摘要:

我们提出了一个Monte-Carlo(MC)计算宇宙射线质子在银河系中的传播能量超过1 PeV。我们讨论了竞争效应的相对优势,如平行/垂直扩散和漂移的玩具模型的银河系。我们比较我们的估计与玩具模型的MC计算的结果,然后我们应用MC计算到一些更现实的银河系磁场模型。我们研究了不同磁场模型中的包容时间,以了解哪一个可能与低能数据一致。

英文摘要:

We present a Monte-Carlo (MC) calculation of the propagation of cosmic ray protons in the Galaxy for energies above 1 PeV. We discuss the relative strengths of competing effects such as parallel/perpendicular diffusion and drifts in toy models of the Galaxy. We compare our estimates with the results of the MC calculation for the toy models and then we apply the MC calculation to a few more realistic models of the Galactic magnetic field. We study the containment times in different models of the magnetic field in order to understand which one may be consistent with the low energy data.

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。

↑