Date:
Tue, 21/04/202612:30-13:30
Title: The Hot Circumgalactic Medium in the eROSITA All-Sky Survey
Abstract: Studying the distribution and properties of hot gas around galaxies (hot CGM) helps constrain galaxy evolution models, but its observation is challenging. The first four SRG/eROSITA all-sky surveys (eRASS:4) allow us to detect the hot CGM by stacking a large sample of galaxies. In this talk, I will present the results we obtained: 1) X-ray surface brightness profiles and baryon budget of the hot CGM, 2) the relationship between the X-ray luminosity of the hot CGM and the stellar mass or halo mass of galaxies, 3) difference of the hot CGM around star-forming and quiescent galaxies.
Zoom: https://huji.zoom.us/j/84347178812?wepwd=O5pq5eIDVgQe2PYjb1wWDAeChFbM3r.1
Meeting ID: 843 4717 8812
Passcode: 575367
Contact: Zhiyuan Yao
Abstract: Studying the distribution and properties of hot gas around galaxies (hot CGM) helps constrain galaxy evolution models, but its observation is challenging. The first four SRG/eROSITA all-sky surveys (eRASS:4) allow us to detect the hot CGM by stacking a large sample of galaxies. In this talk, I will present the results we obtained: 1) X-ray surface brightness profiles and baryon budget of the hot CGM, 2) the relationship between the X-ray luminosity of the hot CGM and the stellar mass or halo mass of galaxies, 3) difference of the hot CGM around star-forming and quiescent galaxies.
Zoom: https://huji.zoom.us/j/84347178812?wepwd=O5pq5eIDVgQe2PYjb1wWDAeChFbM3r.1
Meeting ID: 843 4717 8812
Passcode: 575367
Contact: Zhiyuan Yao