Revealing the ICM transport Properties with a Deep Chandra Observation of A2146

Details Revealing the ICM transport Properties with a Deep Chandra Observation of A2146 Revealing the ICM transport Properties with a Deep Chandra Observation of A2146

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf...45r&link_type=abstract

"Structure in Clusters and Groups of Galaxies in the Chandra Era, 2011 Chandra Science Workshop held July 12-14, 2011. Edited by

Computer Science

Scientific paper

Shock fronts generated by galaxy cluster mergers provide a key tool for studying the cluster gas. However, unambiguous detections of merger shock fronts are rare and only a few examples have been found to date. I will present the first results from a new 400ks Chandra observation and a GMRT 325MHz radio observation of the merging cluster Abell 2146, which contains both a bow shock and the first known example of an upstream cluster merger shock. The X-ray dataset shows complex and potentially turbulent substructure along the edges of the subcluster core and provides new tests of the establishment of electron-ion equilibrium behind each shock front. The GMRT observation reveals the surprising result of no extended radio emission, no giant radio halo or relic in this major merger.

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