Title：The hot gas component and X-ray emission around late type galaxies  in the semi-analytic model

Speaker：Fu Jian, Research Fellow
Unit：Shanghai Astronomical Observatory
Time：2016.04.15（Friday） 10:10
Place：Physics Building 307, Haiyun Campus, Xiamen University
Abstract：Hot gas in circum-galactic medium is one of the important baryonic components in the universe. Based on the semi-analytic models of galaxy formation (L-Galaxies), we can study the hot gas component and the X-ray emission with the model results. The hot gas in the model is mainly from: (1) accretion from IGM, (2) AGN and SNe feedback. We find the hot gas mass and X-ray luminosity correlate with various properties in spiral galaxies, e.g stellar mass, SFR, circular velocity. The processes of ram pressure stripping and AGN feedback can also affect the correlations. Our model may give some prediction for further X-ray survey.