University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, August 9th 2016
Speaker: Dr. Andra Stroe, European Southern Observatory
Subject: Giant cosmic tsunamis: accelerating electrons and galaxy evolution?

Galaxy cluster grow through mergers with other clusters, events which give rise to the largest cosmic shock waves. Shocks travel like giant tsunamis through the cluster galaxies as well as the electron plasma located between them. I will discuss how merger shocks accelerate ICM electrons to relativistic speeds, producing diffuse synchrotron emission extended over Mpc scales. I will also describe how these shock waves shape the evolution of galaxies within the cluster by triggering formation of new stars.

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