The primordial black hole mass spectrum

1975 ◽  
Vol 201 ◽  
pp. 1 ◽  
Author(s):  
B. J. Carr
Keyword(s):  
Black Hole ◽  
Mass Spectrum ◽  
Primordial Black Hole ◽  
Black Hole Mass

scholarly journals EVOLUTION OF PRIMORDIAL BLACK HOLE MASS SPECTRUM IN BRANS–DICKE THEORY

2013 ◽  
Vol 22 (05) ◽  
pp. 1350022 ◽  
Author(s):  
D. DWIVEDEE ◽  
B. NAYAK ◽  
L. P. SINGH
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Energy Density ◽  
Analytic Solutions ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
Black Hole Mass ◽  
Linear And Nonlinear ◽  
The Universe

We investigate the evolution of primordial black hole mass spectrum by including both accretion of radiation and Hawking evaporation within Brans–Dicke (BD) cosmology in radiation-, matter- and vacuum-dominated eras. We also consider the effect of evaporation of primordial black holes on the expansion dynamics of the universe. The analytic solutions describing the energy density of the black holes in equilibrium with radiation are presented. We demonstrate that these solutions act as attractors for the system ensuring stability for both linear and nonlinear situations. We show, however, that inclusion of accretion of radiation delays the onset of this equilibrium in all radiation-, matter- and vacuum-dominated eras.

scholarly journals The Merger Rate of Black Holes in a Primordial Black Hole Cluster

Physics ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 372-378
Author(s):  
Viktor D. Stasenko ◽  
Alexander A. Kirillov
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Star Clusters ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
Central Black Hole ◽  
Solar Mass ◽  
Merger Rate

In this paper, the merger rate of black holes in a cluster of primordial black holes (PBHs) is investigated. The clusters have characteristics close to those of typical globular star clusters. A cluster that has a wide mass spectrum ranging from 10−2 to 10M⊙ (Solar mass) and contains a massive central black hole of the mass M•=103M⊙ is considered. It is shown that in the process of the evolution of cluster, the merger rate changed significantly, and by now, the PBH clusters have passed the stage of active merging of the black holes inside them.

scholarly journals Black Component of Dark Matter

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
A. V. Grobov ◽  
S. G. Rubin ◽  
V. Yu. Shalamova
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Dark Matter ◽  
Mass Spectrum ◽  
Energy Density ◽  
Extra Dimensions ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Specific Mass ◽  
Black Hole Formation

A mechanism of primordial black hole formation with specific mass spectrum is discussed. It is shown that these black holes could contribute to the energy density of dark matter. Our approach is elaborated in the framework of universal extra dimensions.

scholarly journals TOWARDS A THEORY OF QUANTUM BLACK HOLES

2002 ◽  
Vol 17 (06n07) ◽  
pp. 979-988 ◽  
Author(s):  
VICTOR BEREZIN
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Gravitational Collapse ◽  
Black Hole Entropy ◽  
Black Hole Mass ◽  
Quantum Black Hole ◽  
Classical Analog ◽  
Hole Model ◽  
Specific Quantum

We describe some specific quantum black hole model. It is pointed out that the origin of a black hole entropy is the very process of quantum gravitational collapse. The quantum black hole mass spectrum is extracted from the mass spectrum of the gravitating source. The classical analog of quantum black hole is constructed.

scholarly journals On the primordial black hole mass function for broad spectra

2020 ◽  
Vol 807 ◽  
pp. 135550 ◽  
Author(s):  
V. De Luca ◽  
G. Franciolini ◽  
A. Riotto
Keyword(s):  
Black Hole ◽  
Mass Function ◽  
Primordial Black Hole ◽  
Black Hole Mass

scholarly journals Black hole mass spectrum vs spectrum of Hawking radiation

1999 ◽  
Vol 455 (1-4) ◽  
pp. 109-114 ◽  
Author(s):  
V.A. Berezin ◽  
A.M. Boyarsky ◽  
A.Yu. Neronov
Keyword(s):  
Black Hole ◽  
Mass Spectrum ◽  
Hawking Radiation ◽  
Black Hole Mass

scholarly journals BEKENSTEIN-SPECTRUM, TEMPERATURE AND SPECIFIC HEAT OF BLACK HOLES FROM CHAINS

2005 ◽  
Vol 20 (13) ◽  
pp. 2813-2820 ◽  
Author(s):  
AXEL KRAUSE
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Specific Heat ◽  
Hawking Temperature ◽  
Evaporation Process ◽  
Black Hole Mass ◽  
Schwarzschild Black Hole ◽  
Discrete Mass

We study some consequences of a recently proposed description for a Schwarzschild black hole based on Euclidean [Formula: see text] brane pairs described in terms of chain-like excitations. A discrete mass-spectrum of Bekenstein-type is inferred and upon identification of the black hole mass with the chain's energy the leading corrections to both Hawking-temperature and specific heat of the black hole are obtained. The results indicate that for small black holes the evaporation process might be considerably altered.

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