arXiv (2026). DOI: 10.48550/arxiv.2604.27123"> Multiwavelength composite image of the cluster RXCJ0232–4420. Credit: arXiv (2026). DOI: 10.48550/arxiv.2604.27123

Astronomers have employed the upgraded Giant Metrewave Radio Telescope (uGMRT) and the MeerKAT radio telescope to observe a galaxy cluster known as RXCJ0232–4420. Results of the new observations, published April 29 on the arXiv pre-print server, deliver important insights into the nature of this cluster.

Galaxy clusters contain up to thousands of galaxies bound together by gravity. They generally form as a result of mergers and grow by accreting sub-clusters. Therefore, they could serve as excellent laboratories for studying galaxy evolution and cosmology.

Galaxy cluster with a unique radio halo

RXCJ0232–4420 is a massive galaxy cluster at a redshift of approximately 0.066, discovered in 2002.…