THE CURVE. “It has been known since early optical quasar surveys that the comoving number density of luminous quasars has a pronounced peak at a redshift around z = 2–2.5, with a fairly steep decline at higher and lower redshift.”
https://lnkd.in/d9JV8md
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022