The evolution of extragalactic peaked-spectrum sources down to 54 megahertz Sai Zhai, Anniek J. Gloudemans, Gülay Gürkan, Femke J. Ballieux, Martin J. Hardcastle, Francesco De Gasperin and Huub J. A. Röttgering A&A, 695 (2025) A7 Published online: 26 February 2025 DOI: 10.1051/0004-6361/202452979