Friday, July 19, 2013

1307.4923 (G. Giovannini et al.)

The nature of the giant diffuse non-thermal source in the A3411-A3412 complex    [PDF]

G. Giovannini, V. Vacca, M. Girardi, L. Feretti, F. Govoni, M. Murgia
VLA deep radio images at 1.4 GHz in total intensity and polarization reveal a diffuse non-thermal source in the interacting clusters A3411 - A3412. Moreover a small-size low power radio halo at the center of the merging cluster A3411 is found. We present here new optical and X-ray data and discuss the nature and properties of the diffuse non-thermal source. We suggest that the giant diffuse radio source is related to the presence of a large scale filamentary structure and to multiple mergers in the A3411-A3412 complex.
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