中文

典型超新星遗迹的甚高能伽马射线谱

天体物理学 2008-09-21 v2

摘要

最近测量的超新星遗迹的甚高能伽马射线谱最佳拟合为带有指数截断的幂律谱。但这一特征并非出现在“膝等效”能量处,而甚高能伽马射线谱本应在此能量处反映宇宙线谱中原本无特征的“膝”。本文中,我们将甚高能伽马射线特征解释为最近推导出的一个量子效应的结果。该效应区分了“轨迹能量”与“粒子态能量”,并要求粒子态能量在极高能量下强烈依赖于引力势。基于这一效应和观测到的宇宙线谱,我们对超新星遗迹RX J1713.7-3946、RX J0852.0-4622以及银河系中心脊的联合甚高能伽马射线谱进行了严格的双参数拟合。

关键词

引用

@article{arxiv.0807.5085,
  title  = {On the Very-High-Energy Gamma Ray Spectra from Typical Supernovae Remnants},
  author = {Richard Shurtleff},
  journal= {arXiv preprint arXiv:0807.5085},
  year   = {2008}
}

备注

30 pages, 7 figures, 4 tables, 1 problem set. Equations and conclusions unchanged in Version 2. Thanks to the referee and a reader, Version 2 has added discussions of (i) the reference frame, (ii) why the Galaxy doesn't contribute, (iii) how electrons can behave otherwise, (iv) why photons can be included. Typos, minor rewording, revised problem set