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Possibility of primordial black holes as the source of gravitational wave events in the advanced LIGO detector
, Article Physical Review D ; Volume 103, Issue 8 , 2021 ; 24700010 (ISSN) ; Ghodsi, H ; Rahvar, S ; Abedi, J ; Sharif University of Technology
American Physical Society
2021
Abstract
The analysis of gravitational wave (GW) data from advanced LIGO provides the mass of each companion of binary black holes as the source of GWs. The mass of events corresponding to the binary black holes from GW is above 20 M Δ which is much larger than the mass of astrophysical black holes detected by x-ray observations. In this work, we examine primordial black holes (PBHs) as the source of LIGO events. Assuming that 100% of the dark matter is made of PBHs, we estimate the rate at which these objects make binaries, merge, and produce GWs as a function of the redshift. The gravitational lensing of GWs by PBHs can also enhance the amplitude of the strain. We simulate GWs sourced by binary...