Primordial black holes as supermassive black holes seeds

Francesco Ziparo, Simona Gallerani, Andrea Ferrara

The presence of supermassive black holes (SMBHs, $M_{\bullet }\sim 10^{6-10}{M}_{\odot }$) in the first cosmic Gyr ($z\gtrsim 6$) challenges current models of BH formation and evoluti…