arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1610.03097astro-ph.HEastro-ph.EP
收藏

来自日球边界磁场的TeV Cosmic-Ray各向异性

TeV Cosmic-Ray Anisotropy from the Magnetic Field at the Heliospheric Boundary

Vanessa López-Barquero, S. Xu, P. Desiati, A. Lazarian, N. V. Pogorelov, H. Yan

摘要:

我们进行了数值计算,以测试Desiati和Lazarian(2013)的建议,即TeV宇宙射线的各向异性可能源于它们与日光层的相互作用。为此,我们使用了一个磁场模型的日光层和粒子轨迹进行直接的数值计算。与早期的论文测试的想法,我们没有采用时间可逆的技术,是基于刘维尔定理。我们数值计算表明,散射的日光层的刘维尔定理的条件不满足和绝热近似和时间可逆性的粒子轨迹是无效的。我们的研究结果表明,灵敏度的磁结构的日光层磁场,我们希望这将是有用的探测这种结构在未来的研究。

英文摘要:

We performed numerical calculations to test the suggestion by Desiati & Lazarian (2013) that the anisotropies of TeV cosmic rays may arise from their interactions with the heliosphere. For this purpose, we used a magnetic field model of the heliosphere and performed direct numerical calculations of particle trajectories. Unlike earlier papers testing the idea, we did not employ time-reversible techniques that are based on Liouville's theorem. We showed numerically that for scattering by the heliosphere the conditions of Liouville's theorem are not satisfied and the adiabatic approximation and time-reversibility of the particle trajectories are not valid. Our results indicate sensitivity to the magnetic structure of the heliospheric magnetic field, and we expect that this will be useful for probing this structure in future research.

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。

↑