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Astronomy Colloquium
The Evolution of AGN in Clusters of Galaxies
Date: Tuesday, February 10th
Time: 3:30 pm
Place: 6515 Sterling Hall
Speaker: Paul Martini, Ohio State
Abstract: Galaxies in clusters have undergone profoundly different evolution relative to their counterparts in the field. I will present new results that show the same holds true for the supermassive black holes at the centers of cluster galaxies. While luminous AGN are nearly nonexistent in local clusters, they are comparatively common in clusters about z=0.5.<br>
Furthermore, the rate at which cluster AGN have shut off from high redshift to the present day is substantially faster than the decline in the space density of field AGN. The evolution of the cluster AGN population therefore appears to mirror the evolution of cluster star-forming galaxies, as well as suggest that AGN downsizing has an<br>
environmental dependence.<br>
Host: Professor Andy Sheinis
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