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X‐Ray Emission from Hot Gas in Galaxy Mergers
2006
Astrophysical Journal
We examine X-ray emission produced from hot gas during collisions and mergers of disk galaxies. To study this process, we employ simulations that incorporate cosmologically motivated disk-galaxy models and include the effects of radiative cooling, star formation, supernova feedback, and accreting supermassive black holes. We find that during a merger, the colliding gas in the disks is shock-heated to X-ray-emitting temperatures. The X-ray luminosity is spatially extended, rises during the
doi:10.1086/503284
fatcat:eoqypdjhrzfoxglrzpggliyclq