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Heavy primordial black holes from strongly clustered light black holes
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We show that heavy primordial black holes may originate from much lighter ones if the latter are strongly clustered at the time of their formation. While this population is subject to the usual constraints from late-time universe observations, its relation to the initial conditions is different from the standard scenario and provides a new mechanism to generate massive primordial black holes even in the absence of efficient accretion, opening new scenarios, e.g. for the generation of supermassive black holes.
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Cited by 2 Pith papers
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Influence of supermassive primordial black holes on ultraviolet luminosity of high-redshift galaxies
Fitting a model of supermassive primordial black holes to JWST data at z=11 reproduces the excess of bright galaxies, but the agreement reflects parameter tuning rather than an independent test.
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Little Red Dots from Small-Scale Primordial Black Hole Clustering
Densely clustered 30-solar-mass primordial black holes can sequentially merge into ~10^6 solar-mass seeds by redshift 6, possibly explaining JWST little red dots, with high spin from tidal torques and a two-peak gravi...
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