Sensitive 144 MHz–1.5 GHz SEDs confirm 12 genuine remnant radio galaxies with short spectral ages (~8–42 Myr) and diverse remnant fractions, revealing a rapidly fading high-z population.
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SuperMIGHTEE : Spectral Ages of Remnant Radio Galaxy Candidates in the XMM-LSS Field
Sensitive 144 MHz–1.5 GHz SEDs confirm 12 genuine remnant radio galaxies with short spectral ages (~8–42 Myr) and diverse remnant fractions, revealing a rapidly fading high-z population.