Merger history of primordial black-hole binaries

Wu, You

doi:10.1103/physrevd.101.083008

Cited by 62 publications

(30 citation statements)

References 96 publications

(131 reference statements)

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“…). This implies that the probability to undergo secondgeneration mergers is almost negligible [38,71,72], and therefore we neglect such a possibility.…”

Section: Pbhmentioning

confidence: 99%

The GW190521 Mass Gap Event and the Primordial Black Hole Scenario

De Luca,

Desjacques,

Franciolini

et al. 2020

Preprint

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The LIGO/Virgo Collaboration has recently observed GW190521, the first binary black hole merger with at least the primary component mass in the mass gap predicted by the pair-instability supernova theory. This observation disfavors the standard stellar-origin formation scenario for the heavier black hole, motivating alternative hypotheses. We show that GW190521 cannot be explained within the Primordial Black Hole (PBH) scenario if PBHs do not accrete during their cosmological evolution, since this would require an abundance which is already in tension with current constraints. On the other hand, GW190521 may have a primordial origin if PBHs accrete efficiently before the reionization epoch.

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“…). This implies that the probability to undergo secondgeneration mergers is almost negligible [38,71,72], and therefore we neglect such a possibility.…”

Section: Pbhmentioning

confidence: 99%

The GW190521 Mass Gap Event and the Primordial Black Hole Scenario

De Luca,

Desjacques,

Franciolini

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Notice also that, for such small abundances, PBH clustering is irrelevant [71]; similarly, according to the results of N-body simulations [72], for f PBH ≲ z × 10 −4 PBHs are not clustered and therefore the stringent bounds from CMB distortions [55,73], whose relevant physics occurs at z ¼ ð300-600Þ, may not be evaded by clustering arguments. Finally, in the LIGO/Virgo band the fraction of PBHs generated by previous mergers is ∼Oð10 −2 f 16=37 PBH Þ and second-generation mergers are negligible [47,74,75].…”

mentioning

confidence: 94%

GW190521 Mass Gap Event and the Primordial Black Hole Scenario

Desjacques²,

et al. 2021

View full text Add to dashboard Cite

The LIGO/Virgo Collaboration has recently observed GW190521, the first binary black hole merger with at least the primary component mass in the mass gap predicted by the pair-instability supernova theory. This observation disfavors the standard stellar-origin formation scenario for the heavier black hole, motivating alternative hypotheses. We show that GW190521 cannot be explained within the primordial black hole (PBH) scenario if PBHs do not accrete during their cosmological evolution, since this would require an abundance which is already in tension with current constraints. On the other hand, GW190521 may have a primordial origin if PBHs accrete efficiently before the reionization epoch.

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“…Detection of GW bursts from merges of compact object binaries is one of the most promising ways to study the mass distribution of PBHs. Constraints on the PBH scenario from the GWTC-1/GWTC-2 catalog have been widely studied via the Bayesian inference method and in the EMDs framework [29,30,[93][94][95]. Meanwhile, as suggested in this paper, the abundance of PBHs in the mass range 1 − 100 M also can be well constrained from the gravitational lensing effect of upcoming FRBs.…”

Section: B Comparisons With Gw Constraintsmentioning

confidence: 94%

Constraints on the abundance of primordial black holes with different mass distributions from lensing of fast radio bursts

Zhou,

Li,

Huang

et al. 2021

Preprint

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The possibility that primordial black holes (PBHs) form a part of dark matter has been considered for a long time but poorly constrained in the 1 − 100 M (or stellar mass range).However, a renewed special interest of PBHs in this mass window was triggered by the discovery at LIGO of the merger events of black-hole binaries. Fast radio bursts (FRBs) are bright radio transients with millisecond duration and high all-sky occurrence rate. Lensing effect of these bursts has been proposed as one of the cleanest probes for constraining the presence of PBHs in the stellar mass window. In this paper, we first investigate constraints on the abundance of PBHs from the latest FRB observations for both the monochromatic mass distribution and three other popular extended mass distributions (EMDs). We find that constraints from currently public FRB observations are relatively weaker than those from existing gravitational wave detections. Furthermore, we forecast constraining power of future FRB observations on the abundance of PBHs with different mass distributions of PBHs and different redshift distributions of FRBs taken into account. Finally, We find that constraints of parameter space on EMDs from ∼ 10 5 FRBs with ∆t ≤ 1 ms would be comparable with what can be constrained from gravitational wave events. It is foreseen that upcoming complementary multi-messenger observations will yield considerable constraints on the possibilities of PBHs in this intriguing mass window.

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Merger history of primordial black-hole binaries

Cited by 62 publications

References 96 publications

The GW190521 Mass Gap Event and the Primordial Black Hole Scenario

The GW190521 Mass Gap Event and the Primordial Black Hole Scenario

GW190521 Mass Gap Event and the Primordial Black Hole Scenario

Constraints on the abundance of primordial black holes with different mass distributions from lensing of fast radio bursts

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