Mechanism for the Suppression of Intermediate-Mass Black Holes
V.I. Dokuchaev, Yu.N. Eroshenko, S.G. Rubin, D.A. Samarchenko
TL;DR
This paper proposes a model explaining the formation of supermassive primordial black holes while suppressing intermediate-mass black holes, using phase transitions in a scalar field during inflation.
Contribution
It introduces a bimodal black hole mass function based on phase transitions with a Mexican hat potential, accounting for scalar field dynamics during inflation.
Findings
Bimodal mass function for black holes derived
Suppression mechanism for intermediate-mass black holes proposed
Discussion of observational signatures and constraints
Abstract
A model for the formation of supermassive primordial black holes in galactic nuclei with the simultaneous suppression of the formation of intermediate-mass black holes is presented. A bimodal mass function for black holes formed through phase transitions in a model with a "Mexican hat" potential has been found. The classical motion of the phase of a complex scalar field during inflation has been taken into account. Possible observational manifestations of primordial black holes in galaxies and constraints on their number are discussed.
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