Clustering of primordial black holes formed in a matter-dominated epoch

Matsubara, Takahiko; Terada, Takahiro; Kohri, Kazunori; Yokoyama, Shuichiro

doi:10.1103/physrevd.100.123544

Cited by 26 publications

(17 citation statements)

References 99 publications

(175 reference statements)

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“…[35][36][37][38]. Primordial non-Gaussianity can strongly change the initial clustering of PBHs [39][40][41][42][43] and the subsequent merger rate [44] (see also [45]).…”

Section: Intrinsic Merger Rate From Pbhsmentioning

confidence: 99%

Primordial black hole merger rates: distributions for multiple LIGO observables

Gow

Byrnes

Hall

et al. 2020

J. Cosmol. Astropart. Phys.

116

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We have calculated the detectable merger rate of primordial black holes, as a function of the redshift, as well as the binary's mass ratio, total mass and chirp mass (observables that have not previously been explored in great detail for PBHs). We consider both the current and design sensitivity of LIGO and five different primordial black hole mass functions, as well as showing a comparison to a predicted astrophysical black hole merger rate. We show that the empirical preference for nearly equal-mass binaries in current LIGO/Virgo data can be consistent with a PBH hypothesis once observational selection effects are taken into account. However, current data do exclude some PBH mass distributions, and future data may be able to rule out the possibility that all observed BH mergers had a primordial origin.

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“…[35][36][37][38]. Primordial non-Gaussianity can strongly change the initial clustering of PBHs [39][40][41][42][43] and the subsequent merger rate [44] (see also [45]).…”

Section: Intrinsic Merger Rate From Pbhsmentioning

confidence: 99%

Primordial black hole merger rates: distributions for multiple LIGO observables

Gow

Byrnes

Hall

et al. 2020

J. Cosmol. Astropart. Phys.

116

View full text Add to dashboard Cite

show abstract

“…It is known that PBHs induce isocurvature fluctuations due to their Poisson fluctuations, and the clustering also sources isocurvature fluctuations [58,79]. The power spectrum of PBH density perturbations is defined as…”

Section: A Isocurvature Fluctuationsmentioning

confidence: 99%

Strong clustering of primordial black holes from Affleck-Dine mechanism

Kawasaki,

Murai,

Nakatsuka

2021

Preprint

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Primordial black hole (PBH) is a fascinating candidate for the origin of binary merger events observed by LIGO-Virgo collaboration. The spatial distribution of PBHs at formation is an important feature to estimate the merger rate. We investigate the clustering of PBHs formed by Affleck-Dine (AD) baryogenesis, where dense baryon bubbles collapse to form PBHs. We found that formed PBHs show a strong clustering due to the stochastic dynamics of the AD field. Including the clustering, we evaluate the merger rate and isocurvature perturbations of PBHs, which show significant deviations from those without clustering.

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“…For more realistic extended mass functions, the abundance, size and evolution of DM halos, partially or entirely made of PBHs, is impacted by several effects, see e.g. [59][60][61][62][63][64][65][66][67][68][69]. Let us mention a Poissonian noise from the discrete nature of PBHs, a seeding effect from heavy PBHs, the enhancement of the primordial power spectrum at the origin of PBH formation, the dynamical heating and evaporation of clusters, etc.…”

Section: Merging Rate From Pbh Clustersmentioning

confidence: 99%

Detecting Planetary-mass Primordial Black Holes with Resonant Electromagnetic Gravitational Wave Detectors

Herman,

Füzfa,

Lehoucq

et al. 2020

Preprint

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The possibility to detect gravitational waves (GW) from planetary-mass primordial black hole (PBH) binaries with electromagnetic (EM) detectors of high-frequency GWs is investigated. We consider two patented experimental designs, based on the inverse Gertsenshtein effect, in which incoming GWs passing through a static magnetic field induce EM excitations inside either a TM cavity or a TEM waveguide. The frequency response of the detectors is computed for post-newtonian GW waveforms. We find that such EM detectors based on current technology may achieve a strain sensitivity down to h ∼ 10 −30 , which generates an EM power variation of 10 −10 W. This allows the detection of PBH binary mergers of mass around 10 −5 M if they constitute more than 0.01 percent of the dark matter, as suggested by recent microlensing observations. We envision that this class of detectors could also be used to detect cosmological GW backgrounds and probe sources in the early Universe at energies up to the GUT scale.

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Clustering of primordial black holes formed in a matter-dominated epoch

Cited by 26 publications

References 99 publications

Primordial black hole merger rates: distributions for multiple LIGO observables

Primordial black hole merger rates: distributions for multiple LIGO observables

Strong clustering of primordial black holes from Affleck-Dine mechanism

Detecting Planetary-mass Primordial Black Holes with Resonant Electromagnetic Gravitational Wave Detectors

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