Redshift Evolution of Galaxy Group X-ray Properties in Simba
We examine the evolution of intragroup gas X-ray scaling relations for group-sized halos (M500=1012.3−15M⊙) in the Simba galaxy formation simulation. X-ray luminosity LX vs M500 shows increasing deviation from self-similarity from z=3→0, with M500<1013.5M⊙ halos exhibiting a large reduction in LXand slight increase in X-ray luminosity-weighted temperature TX. These shifts are driven by a strong drop in fgas with time for these halos, and coincides with …