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Special Presentations

Special Talk

Presented by: Travis Fischer  (NASA - Goddard)
Category: Special Interest   Duration: 1 hour   Broadcast date: January 15, 2019
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Active Galactic Nuclei (AGN) are supermassive black holes in the centers of galaxies that actively gain mass from the surrounding matter of accretion disks. This accretion process, in turn, generates feedback in the form of massive outflows of ionized gas, which are thought to play a pivotal role in large-scale structure formation in the early Universe and self-regulation of SMBH and galactic bulge growth. AGN feedback is currently used to explain the SMBH-?? relation, which relates the SMBH mass and the stellar velocity dispersion of the bulge, where evacuation of gas from the bulge quenches star formation and halts the growth of both the SMBH and bulge. I will discuss ongoing investigations on the properties of AGN winds in order to determine the validity of this explanation through the analysis of the frequency and impact of mass outflows from AGN.