Primordial Black Holes Build Early Galaxies ⚡ экспресс
A mechanism for the formation of massive objects in the early Universe, such as UHZ1 (z=10.1, stellar mass ~10^8 M⊙, central black hole mass ~10^7–10^8 M⊙), is discussed, involving primordial black holes (PBHs) that constitute a significant fraction of dark matter. It is shown that the granulation term in the matter power spectrum amplifies small-scale fluctuations, triggering earlier collapse of halos containing PBHs of various masses. Within the resulting virialized structures, PBHs undergo two-body relaxation, and the more massive ones sink to the center via dynamical friction. An analysis of the orbital evolution of PBHs demonstrates that mass functions can yield parameters resembling those observed in UHZ1. It is proposed that this mechanism may also explain other recently discovered JWST high-redshift objects, including the 'little red dots'.
The early Universe was like a construction site where, instead of slowly building floors, they used prefabricated blocks. These blocks were primordial black holes, born in the first fraction of a second after the Big Bang. They likely also serve as dark matter—the invisible substance whose gravity holds galaxies together. Such holes can be astonishingly tiny: with the mass of an asteroid, they're smaller than an atomic nucleus, so they pass right through us unnoticed—but in clusters, they act like balls rolling into a funnel, merging at the center and quickly building a giant black hole. This solves the mystery of why the Webb telescope sees massive black holes in galaxies only 400 million years old.
🎯 If a primordial black hole had the mass of an asteroid, its size would be smaller than an atomic nucleus—essentially a point in space, but with enormous gravity.
🎬 In the movie *Interstellar*, black holes serve as portals, but in reality, they may have been the 'builders' of the first galaxies.