Heavy Primordial Black Holes from Strongly Clustered Light Black Holes
Valerio De Luca, Gabriele Franciolini, Antonio Riotto
Abstract
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.
Topics & Concepts
PhysicsSupermassive black holePrimordial black holeAstrophysicsIntermediate-mass black holeBinary black holeBlack hole (networking)Accretion (finance)Stellar black holeAstronomyGravitational waveGalaxyComputer networkRouting (electronic design automation)Computer scienceRouting protocolLink-state routing protocolCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsPulsars and Gravitational Waves Research