MG12 - Talk detail |
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Participant |
Markevitch, Maxim | |
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Institution |
Harvard-Smithsonian Center for Astrophysics - 60 Garden St. - Cambridge - MA - USA | |
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Session |
Talk |
Abstract |
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PS |
Intergalactic shock fronts |
Shock fronts propagating in the hot plasma within galaxy clusters is a widely expected phenomenon, given that clusters form and grow by constantly accreting smaller subclusters and galaxy groups. However, these merger shock fronts have turned out to be difficult to detect -- to date, only 2 have been confidently identified by the Chandra X-ray observatory. I will show results on the shock fronts in the Bullet cluster (1E0657-56) and A520 and a candidate shock in A521. They offer unique insights into several interesting aspects of the cluster and dark matter physics. |