Prospective constraints on the primordial black hole abundance from the stochastic gravitational-wave backgrounds produced by coalescing events and curvature perturbations

Sai Wang, Takahiro Terada, and Kazunori Kohri
Phys. Rev. D 99, 103531 – Published 28 May 2019; Erratum Phys. Rev. D 101, 069901 (2020)

Abstract

For a variety of ongoing and planned gravitational-wave (GW) experiments, we study expected constraints on the fraction (fPBH) of primordial black holes (PBHs) in dark matter by evaluating the energy-density spectra of two kinds of stochastic GW backgrounds. The first one is produced from an incoherent superposition of GWs emitted from coalescences of all of the binary PBHs. The second one is induced through nonlinear mode couplings of large primordial curvature perturbations inevitably associated with the generation of PBHs in the early Universe. In this paper, we focus on PBHs with masses 108MMPBH<1M, since they are not expected to be of stellar origin. In almost all mass ranges, we show that the experiments are sensitive enough to constrain the fraction for 105fPBH1 by considering the GWs from coalescing events and 1013fPBH1 by considering the GWs from curvature perturbations. Exceptionally, the fraction cannot be constrained for fPBH103 by these two GW backgrounds only in the narrow mass range around MPBH107M.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
1 More
  • Received 29 March 2019
  • Corrected 30 August 2019

DOI:https://doi.org/10.1103/PhysRevD.99.103531

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsParticles & Fields

Corrections

30 August 2019

Correction: The previously published Figures 1–7 and related text contained incorrect information for sensitivity values and have been replaced.

Erratum

Authors & Affiliations

Sai Wang1,*, Takahiro Terada1,†, and Kazunori Kohri1,2,‡

  • 1Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba 305-0801, Japan
  • 2The Graduate University for Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba 305-0801, Japan

  • *wangsai@post.kek.jp
  • teradat@post.kek.jp
  • kohri@post.kek.jp

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 99, Iss. 10 — 15 May 2019

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×