期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 494, 期 1, 页码 549-570出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa685
关键词
methods: numerical; galaxies: general; galaxies: ISM; X-rays: galaxies
资金
- Hungarian Academy of Sciences [LP2016-11]
- German Federal Ministry of Education and Research (BMBF)
- German State Ministries for Research of Baden-Wurttemberg (MWK)
- Bayern (StMWFK)
- Nordrhein-Westfalen (MIWF)
- National Aeronautics and Space Administration
Hot gaseous atmospheres that permeate galaxies and extend far beyond their stellar distribution, where they are commonly referred to as the circumgalactic medium, imprint important information about feedback processes powered by the stellar populations of galaxies and their central supermassive black holes (SMBHs). In this work, we study the properties of this hot X-ray emitting medium using the IllustrisTNG cosmological simulations. We analyse their mock X-ray spectra, obtained from the diffuse and metal-enriched gas in TNG100 and TNG50, and compare the results with X-ray observations of nearby early-type galaxies. The simulations reproduce the observed X-ray luminosities (L-X) and temperature (T-X) at small (
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