To conclude, this work adds to the growing effort to investigate nonthermal phenomena outside the denser and well-studied regions of the ICM. Future instruments like @SKAO will likely probe these regions more efficiently. Paper submitted 7/7

What about the uGMRT non-detection? Since diffuse sources in cluster pairs are rare, even spectral limits would help to understand the mechanisms generating the emission. However, the MeerKAT emission is unfortunately too faint to provide a meaningful limit with the uGMRT... 6/7

We compared this extended emission with radio bridges and halos. While its classification is uncertain, its properties align with that expected for a diffuse emission generated in an early stage of the merger 5/7

The radio emission nicely follows the elongation of the X-ray emission from the clusters and intra-cluster bridge, suggesting that it is likely generated as consequence of the cluster-cluster encounter. In-between the clusters, the radio emission is enhanced 4/7

After careful analysis and removal of discrete sources, we confirmed the presence of the extended emission. The large-FoV images show that diffuse emission is present only at the position of the cluster pair in the MeerKAT field, while we have a non-detection with the uGMRT 3/7

The clusters are interacting and are likely observed shortly after pericenter passage. From the MeerKAT images, we noticed "excess" diffuse emission in the intra-cluster region 2/7

Where is the counter lobe? An interesting hypothesis is that it could have been stretched as a consequence of the sloshing in the system, resulting in what is now observed as bridge/arc. See also our recent MeerKAT paper on Ophiuchus (arxiv.org/abs/2504.16158)!

(w/ @cjriseley.bsky.social, @annalisa-astro.bsky.social, @CStuardi, @FraLoi1)