Stochastic Gravitational-Wave Background due to Primordial Binary Black Hole Mergers

Abstract

Recent Advanced LIGO detections of binary black hole mergers have prompted multiple studies investigating the possibility that the heavy GW150914 binary system was of primordial origin, and hence could be evidence for dark matter in the form of black holes. We compute the stochastic background arising from the incoherent superposition of such primordial binary black hole systems in the universe and compare it to the similar background spectrum due to binary black hole systems of stellar origin. We investigate the possibility of detecting this background with future gravitational wave detectors, and discuss the possibility of using the stochastic gravitational-wave background measurement to constrain the dark matter component in the form of black holes.

6 pages, 5 figures

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Cited by in corpus (14)

• Cosmic microwave background limits on accreting primordial black holes
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Stochastic gravitational waves associated with the formation of primordial black holes
• Primordial Black Hole Dark Matter and the LIGO/Virgo observations
• Prospects for probing gravitational waves from primordial black hole binaries
• The $N_{\ell }$ of gravitational wave background experiments
• Detecting the Stochastic Gravitational Wave Background from Primordial Black Hole Formation
• Primordial black holes from cusp collapse on cosmic strings
• Electromagnetic probes of primordial black holes as dark matter
• The cosmology dependence of the concentration-mass-redshift relation
• Scalar induced gravitational waves review
• Cosmology and the Early Universe
• Cosmological constraints on the radiation released during structure formation
• A narrow-band parameterization for the stochastic gravitational wave background