磁流体磁通管中的宇宙线加速
高能天体物理现象
2019-06-26 v1
摘要
我们发现,射电星系瓣中回流内的磁流体磁通管为宇宙线(CR)加速至超高能提供了适宜环境。我们表明,即使磁通管中的磁化湍流不足以强到适用Bohm扩散,CR也能达到Hillas (1984)能量。我们证明,磁流体磁通管中由连续弱激波引起的一阶Fermi加速等价于由强湍流引起的二阶Fermi加速。
引用
@article{arxiv.1906.02508,
title = {Cosmic Ray Acceleration in Hydromagnetic Flux Tubes},
author = {Anthony Bell and James Matthews and Katherine Blundell and Anabella Araudo},
journal= {arXiv preprint arXiv:1906.02508},
year = {2019}
}
备注
Accepted for publication in the Monthly Notices of the Royal Astronomical Society on 31st May 2019