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

TL;DR

This paper investigates a large diffuse non-thermal radio source in the A3411-A3412 cluster complex, linking it to filamentary structures and cluster mergers through radio, optical, and X-ray observations.

Contribution

It provides new optical and X-ray data and proposes a connection between the diffuse radio emission and large-scale filamentary structures and mergers.

Findings

Detection of a giant diffuse radio source in A3411-A3412

Identification of a small radio halo in A3411

Evidence linking the radio source to filamentary structures and cluster mergers

Abstract

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.