中文

黑洞X射线双星的观测表明磁囚禁盘的形成

高能天体物理现象 2023-10-12 v3

摘要

物质落向黑洞的吸积会拖曳任何存在的磁场向内,增强其强度。理论预言,足够强的磁场可以阻止吸积流,产生磁囚禁盘(MAD)。我们分析了 2018 年黑洞 X 射线双星 MAXI J1820+070 一次爆发的档案多波段观测。与 X 射线流量相比,射电和光学流量分别延迟了约 8 天和 17 天。我们将此解释为磁囚禁盘形成的证据。在该情景中,磁场由一个膨胀的日冕放大,在射电峰值附近形成磁囚禁盘。光学延迟则源于外盘的热黏性不稳定性。

关键词

引用

@article{arxiv.2309.00200,
  title  = {Observations of a black hole X-ray binary indicate formation of a magnetically arrested disk},
  author = {Bei You and Xinwu Cao and Zhen Yan and Jean-Marie Hameury and Bozena Czerny and Yue Wu and Tianyu Xia and Marek Sikora and Shuang-Nan Zhang and Pu Du and Piotr T. Zycki},
  journal= {arXiv preprint arXiv:2309.00200},
  year   = {2023}
}

备注

The author's version of the article which will appear in Science on 31 August 2023, 49 pages including the extended data. The online publication version can be found at https://doi.org/10.1126/science.abo4504