Euclid: The $r_{\mathrm{b}}$-$M_{\ast }$ relation as a function of redshift. I. The $5\times 10^9{M}_{\odot }$ black hole in NGC 1272

R. Saglia, K. Mehrgan, S. de Nicola +148

Core ellipticals, massive early-type galaxies have an almost constant inner surface brightness profile. The size of the core region correlates with the mass of the finally merged b…