You need JavaScript to view this

Statistical clustering of primordial black holes

Journal Article:

Abstract

It is shown that Meszaros theory of galaxy formation, in which galaxies form from the density perturbations associated with the statistical fluctuation in the number density of primordial black holes, must be modified if the black holes are initially surrounded by regions of lower radiation density than average (as is most likely). However, even in this situation, the sort of effect Meszaros envisages does occur and could in principle cause galactic mass-scales to bind at the conventional time. In fact, the requirement that galaxies should not form prematurely implies that black holes could not have a critical density in the mass range above 10/sup 5/ M(sun). If the mass spectrum of primordial black holes falls off more slowly than m/sup -3/ (as expected), then the biggest black holes have the largest clustering effect. In this case the black hole clustering theory of galaxy formation reduces to the black hole seed theory of galaxy formation, in which each galaxy becomes bound under the gravitational influence of a single black hole nucleus. The seed theory could be viable only if the early Universe had a soft equation of state until a time exceeding 10/sup -4/ s or if something prevented black hole  More>>
Authors:
Carr, B J [1] 
  1. Cambridge Univ. (UK). Inst. of Astronomy
Publication Date:
Apr 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-333703; EDB-78-023592
Resource Relation:
Journal Name: Astron. Astrophys.; (Germany, Federal Republic of); Journal Volume: 56:3
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BLACK HOLES; DISTRIBUTION; GALACTIC EVOLUTION; COSMOLOGY; CRITICAL MASS; CRITICALITY; FLUCTUATIONS; GALAXIES; VARIATIONS; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources; 640105 - Astrophysics & Cosmology- Galaxies
OSTI ID:
5299446
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: AAEJA
Submitting Site:
INIS
Size:
Pages: 377-383
Announcement Date:
Oct 01, 1977

Journal Article:

Citation Formats

Carr, B J. Statistical clustering of primordial black holes. Germany: N. p., 1977. Web.
Carr, B J. Statistical clustering of primordial black holes. Germany.
Carr, B J. 1977. "Statistical clustering of primordial black holes." Germany.
@misc{etde_5299446,
title = {Statistical clustering of primordial black holes}
author = {Carr, B J}
abstractNote = {It is shown that Meszaros theory of galaxy formation, in which galaxies form from the density perturbations associated with the statistical fluctuation in the number density of primordial black holes, must be modified if the black holes are initially surrounded by regions of lower radiation density than average (as is most likely). However, even in this situation, the sort of effect Meszaros envisages does occur and could in principle cause galactic mass-scales to bind at the conventional time. In fact, the requirement that galaxies should not form prematurely implies that black holes could not have a critical density in the mass range above 10/sup 5/ M(sun). If the mass spectrum of primordial black holes falls off more slowly than m/sup -3/ (as expected), then the biggest black holes have the largest clustering effect. In this case the black hole clustering theory of galaxy formation reduces to the black hole seed theory of galaxy formation, in which each galaxy becomes bound under the gravitational influence of a single black hole nucleus. The seed theory could be viable only if the early Universe had a soft equation of state until a time exceeding 10/sup -4/ s or if something prevented black hole formation before 1 s.}
journal = {Astron. Astrophys.; (Germany, Federal Republic of)}
volume = {56:3}
journal type = {AC}
place = {Germany}
year = {1977}
month = {Apr}
}