Clusters of Galaxies as Cosmic Laboratories

Session

Cluster Dynamics I

14 Sept 2011, 09:00

FD51 (AlbaNova main building)

266. Blazar Heating - The Rosetta Stone for Structure Formation?

Christoph Pfrommer

14/09/2011, 09:00

Talk

It has been realised only recently that TeV emission from blazars can significantly heat the intergalactic medium by pair-producing high-energy electrons and positrons, which in turn excite vigorous plasma instabilities, leading to a local dissipation of the pairs’ kinetic energy. This heats the intergalactic medium and dramatically increases its entropy after redshift z~2, with...

267. The AGN-Galaxy Connection: The interaction between supermassive black holes and their host galaxies

William Forman

14/09/2011, 09:45

Talk

Feedback between supermassive black holes (SMBH) and their host galaxies is needed to explain a variety of observational "facts", e.g., the tight relationship between SMBH mass and host galaxy properties, the galaxy luminosity function, the absence of significant star formation in "cooling flow" clusters and groups. Only through X-ray observations of early-type galaxies, groups, and...

268. The Outer Limits of Galaxy Clusters: Observations to the Virial Radius with Suzaku

Eric Miller

14/09/2011, 11:00

Talk

269. Shocks, Cold Fronts and Sloshing: The Growth of Clusters of Galaxies through Mergers

Christine Jones

14/09/2011, 11:45

Talk

The formation and evolution of large scale structures is a central issue for cosmology. Located at nodes of the cosmic web, clusters of galaxies are the largest collapsed structures in the Universe with over 80% of their mass in the form of dark matter. With hot gas comprising the bulk of the baryonic mattter, in clusters we observe the interactions between the hot and cold baryonic...