中文

银河中可变γ射线源的本质

天体物理学 2009-11-10 v2

摘要

EGRETγ射线源的统计显示,存在一类在低银河纬度显著亮的源体,其分布符合年轻银河天体特征,向内层星系臂集中。其中一子类显示出以天为单位的强变动性。继Kaufman Bernado等人(2002)首次提出后,本文探讨这些源体可能为高质量微类星体的可能性。我们提出详细的γ射线发射模型,包含相对论喷流中电子与来自局部场(恒星紫外光、同步光、来自吸积盘的软X射线、来自乱流的硬X射线)的逆Compton相互作用。我们得出结论,微类星体是低纬度可变EGRET源子类的理想候选对象。

关键词

引用

@article{arxiv.astro-ph/0409228,
  title  = {On the Nature of the variable gamma-ray sources in the Galaxy},
  author = {Valenti Bosch-Ramon and Gustavo E. Romero and Josep M. Paredes},
  journal= {arXiv preprint arXiv:astro-ph/0409228},
  year   = {2009}
}

备注

(1)Universitat de Barcelona (2)Instituto Argentino de Radioastronomia (3)Universidad Nacional de La Plata 12 pages, 5 figures. Presented as talk to the "Multiwavelength Approach to Unidentified Gamma-Ray Sources", Eds. K.S. Cheng & G.E. Romero, Accepted for publication in Astrophysics and Space Science journal (title and some references corrected)