The first generation of stars, often called Population III (or Pop III), form from metal-free
primordial gas at redshifts z∼ 30 and below. They dominate the cosmic star-formation …

Intermediate-mass black holes (IMBHs) in the mass range bridge the gap between stellar
black holes (BHs) and supermassive BHs. Here, we investigate the possibility that IMBHs …

ABSTRACT JWST has revealed a large population of accreting black holes (BHs) in the
early Universe. Recent work has shown that even after accounting for possible systematic …

While large numbers of supermassive black holes have been detected at z> 6, their origin is
still essentially unclear. Numerical simulations have shown that the conditions for the …

Repeated mergers of stellar-mass black holes in dense star clusters can produce
intermediate-mass black holes (IMBHs). In particular, nuclear star clusters at the centers of …

The presence of massive black holes (BHs) with masses of the order of, powering bright
quasars when the Universe was less than 1 Gyr old, poses strong constraints on their …

Most stellar evolution models predict that black holes (BHs) should not exist above
approximately 50–70 M⊙, the lower limit of the pair-instability mass gap. However, recent …

We study the genesis and evolution of supermassive black hole (SMBH) seeds through
different formation channels, from PopIII remnants to massive seeds, modelled within the L …

The formation of supermassive stars is believed to be an essential intermediate step for the
formation of the massive black hole seeds that become the supermassive black holes …

This is the first paper in a series aimed at modeling the black hole (BH) mass function, from
the stellar to the intermediate to the (super) massive regime. In the present work, we focus …