Single-Field Model of Gravitational-Scalar Instability. II. Black Hole Formation

TL;DR

This paper investigates the potential for black hole formation in the early Universe through gravitational-scalar instability in a model of scalar-charged fermions, supported by numerical simulations.

Contribution

It introduces a novel mechanism for early Universe black hole formation via gravitational-scalar instability in a scalar-charged fermion model, with numerical validation.

Findings

Black holes with masses up to 10^4-10^6 solar masses can form in the early Universe.

The proposed mechanism leads to exponential growth of perturbations, facilitating black hole formation.

Numerical models confirm the viability of the mechanism within specific parameter ranges.

Abstract

On the basis of the previously formulated mathematical model of a statistical system with scalar interaction of fermions and the theory of gravitational-scalar instability of a cosmological model based on a one-component statistical system of scalarly charged degenerate fermions (\MIO models), the possibility of the formation of black holes in the early Universe using the mechanism of gravitational-scalar instability, which ensures the exponential growth of perturbations. The evolution of spherical masses in the \MIO model, as well as the evolution of black holes with allowance for their evaporation, is studied. The argumentation of the possibility of the formation of black holes in the early Universe with the help of the proposed mechanism is given, and a numerical model is constructed that confirms this argumentation. The range of parameters of the \MIO model, which ensures the growth of black hole masses in the early Universe up to $10^4\div10^6 M_\odot$, is identified.