Brans–Dicke Theory and Primordial Black Holes in Early Matter-Dominated Era

2009/05/31 by Bibekananda Nayak, L. P. Singh, Lambodar Prasad Singh
Physics and Astronomy · #Astronomy #Astrophysics #Binary black hole #Black Holes and Theoretical Physics #Black hole (networking) #Brans–Dicke theory #Cosmology #Cosmology and Gravitation Theories #Gravitational wave #Hawking radiation #Inflation (cosmology) #Physics #Primordial black hole #Solar and Space Plasma Dynamics #Theoretical physics #gr-qc

paper · pdf · doi:10.1007/s10773-011-1014-5

9 pages

arxiv created 2011/06/27 · openalex publication_date 2011/11/13 · arxiv updated 2012/01/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We show that primordial black holes can be formed in the matter-dominated era with gravity described by the Brans-Dicke theory. Considering an early matter-dominated era between inflation and reheating, we found that the primordial black holes formed during that era evaporate at a quicker than those of early radiation-dominated era. Thus, in comparison with latter case, less number of primordial black holes could exist today. Again the constraints on primordial black hole formation tend towards the larger value than their radiation-dominated era counterparts indicating a significant enhancement in the formation of primordial black holes during the matter-dominaed era.

Citations

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