DOWNSIZING. “Observational studies have revealed a ‘downsizing’ trend in black hole (BH) growth: the number densities of luminous active galactic nuclei (AGN) peak at higher redshifts than those of faint AGN. This would seem to imply that massive BHs formed before low-mass BHs, in apparent contradiction to hierarchical clustering scenarios.”
https://lnkd.in/d9JV8md
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022