Black hole mass and spin estimates of the most distant quasars

Samuele Campitiello, Annalisa Celotti, Gabriele Ghisellini +1

We investigate the properties of the most distant quasars ULASJ134208.10+092838.61 ($z=7.54$), ULASJ112001.48+064124.3 ($z=7.08$) and DELSJ003836.10-152723.6 ($z=7.02$) study…