热气体晕

• 一篇不错的review arXiv.2001.10023

ICM，IGrM，CGM等等都算

Lakhchaura et al. (2019) found a tight correlation between the central supermassive black hole mass

and the atmospheric temperatures of the brightest cluster/group galaxies (BCGs).

Soft X-ray Spectrometer (SXS) on the Hitomi satellite可以高分辨率的测量X射线的谱线宽度