Speaker
Description
We present preliminary results from a study of 13 mini-halos (MHs), including candidate sources from the MeerKAT Galaxy Cluster Legacy Survey (MGCLS). Mini-halos are diffuse, faint radio sources typically found in relaxed galaxy clusters, with their origins attributed to either hadronic interactions or turbulent re-acceleration processes. Using \texttt{oxkat}, we reduced archival L-band MGCLS data for the sample, including J1539.5--8335, for which additional S-band and UHF-band observations. Approximately 80\% of the MHs are found in the most massive systems ($\sim6 \times 10^{14}\,M_{\odot}$). The MGCLS mini-halos occupy the previously unexplored MH regime, where the majority of clusters have mass below $5 \times 10^{14}\,M_{\odot}$, revealing a strong correlation between the 1.4\,GHz radio power of the MH and the host cluster mass that were not observed before.
| Stream | Science or Engineering |
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