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12th of January 2015
2014 Science Highlights
The Radio Relics and Halo of El Gordo, a Massive z = 0.870 Cluster Merger
Lindner et al. (2014) present 610 MHz and 2.1 GHz imaging of the massive Sunyaev-Zel'dovich Effect selected z = 0.870 cluster merger ACT-CL J0102-4915 ("El Gordo"), obtained with the Giant Metrewave Radio Telescope (GMRT) and the Australia Telescope Compact Array (ATCA), respectively. They detect two complexes of radio relics separated by 3.4 arcmin (1.6 Mpc) along the system's northwest-to-southeast collision axis that have high integrated polarization fractions (33%) and steep spectral indices, consistent with creation via Fermi acceleration by shocks in the intracluster medium triggered by the cluster collision.

ATNF Science Highlights from refereed publications during 2014.

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