Speaker
Description
eROSITA allows us to resolve the entire Virgo Cluster and its outskirts on scales between 1 kpc and 3 Mpc, covering a total area on the sky of about 25 by 25 degrees. We present an exploration of the SRG/eROSITA data of the Virgo Cluster from five all-sky surveys. We utilize image manipulation techniques and surface brightness profiles to search for extended emission, surface brightness edges, and features in the outskirts. We employ a method of comparing mean and median profiles to measure gas clumping out to and beyond the virial radius. Surface brightness analysis of the cluster and individual sectors of the cluster reveal the full extent of previously identified cold fronts to the north and south. The emissivity bias due to gas clumping, which we quantify over three orders of magnitude in radial range, is found to be mild, consistent with previous findings. We find uniform clumping measurements in all directions, with no enhancements along candidate filaments.
