# Bayesian analysis of LIGO-Virgo mergers: Primordial versus astrophysical black hole populations

@article{Hall2020BayesianAO, title={Bayesian analysis of LIGO-Virgo mergers: Primordial versus astrophysical black hole populations}, author={Alex Hall and Andrew D. Gow and Christian T. Byrnes}, journal={Physical Review D}, year={2020} }

We conduct a thorough Bayesian analysis of the possibility that the black hole merger events seen in gravitational waves are primordial black hole (PBH) mergers. Using the latest merger rate models for PBH binaries drawn from a lognormal mass function we compute posterior parameter constraints and Bayesian evidences using data from the first two observing runs of LIGO-Virgo. We account for theoretical uncertainty due to possible disruption of the binary by surrounding PBHs, which can suppress…

## 42 Citations

### The importance of priors on LIGO-Virgo parameter estimation: the case of primordial black holes

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2021

The black holes detected by current and future interferometers can have diverse origins. Their expected mass and spin distributions depend on the specifics of the formation mechanisms. When a…

### Two populations of LIGO-Virgo black holes

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

We analyse the LIGO-Virgo data, including the recently released GWTC-2dataset, to test a hypothesis that the data contains more than one population of black holes. We perform a maximum likelihood…

### Primordial black holes from narrow peaks and the skew-lognormal distribution

- Physics
- 2020

We examine the shape of the primordial black hole mass distribution arising from a peak in the primordial power spectrum. We show that, for sufficiently narrow peaks, the true mass distribution…

### Probing Multiple Populations of Compact Binaries with Third-generation Gravitational-wave Detectors

- Physics
- 2021

Third-generation (3G) gravitational-wave detectors will be able to observe binary black hole mergers (BBHs) up to a redshift of ∼30. This gives unprecedented access to the formation and evolution of…

### No-go for the formation of heavy mass Primordial Black Holes in Single Field Inflation

- Physics
- 2023

We examine the possibility of Primordial Black Holes (PBHs) formation in single ﬁeld models of inﬂation. We show that a one-loop correction to the renormalized primordial power spectrum rules out the…

### Measuring properties of primordial black hole mergers at cosmological distances: Effect of higher order modes in gravitational waves

- PhysicsPhysical Review D
- 2023

Primordial black holes (PBHs) may form from the collapse of matter overdensities shortly after the Big Bang. One may identify their existence by observing gravitational wave (GW) emissions from…

### Enhance primordial black hole abundance through the non-linear processes around bounce point

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2023

The non-singular bouncing cosmology is an alternative paradigm to inflation, wherein the background energy density vanishes at the bounce point, in the context of Einstein gravity. Therefore, the…

### Simulations of PBH formation at the QCD epoch and comparison with the GWTC-3 catalog

- Physics
- 2022

. The probability of primordial black hole (PBH) formation is known to be boosted during the Quantum Chromodynamics (QCD) crossover due to a slight reduction of the equation of state. This induces a…

## References

SHOWING 1-10 OF 125 REFERENCES

### Merger rate of primordial black-hole binaries

- Physics
- 2017

Primordial black holes (PBHs) have long been a candidate for the elusive dark matter (DM), and remain poorly constrained in the ~20-100 Msun mass range. PBH binaries were recently suggested as the…

### Primordial black hole merger rates: distributions for multiple LIGO observables

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

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…

### Primordial black hole dark matter and the LIGO/Virgo observations

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

The LIGO/Virgo collaboration have by now detected the mergers of ten black hole binaries via the emission of gravitational radiation. The hypothesis that these black holes have formed during the…

### Constraints on binary black hole populations from LIGO–Virgo detections

- PhysicsMonthly Notices of the Royal Astronomical Society
- 2019

We reanalyse the LIGO-Virgo strain data of the 10 binary black hole mergers reported to date and compute the likelihood function in terms of chirp mass, mass ratio and effective spin. We discuss the…

### Gravitational waves from primordial black hole mergers

- Physics
- 2017

We study the production of primordial black hole (PBH) binaries and the resulting merger rate, accounting for an extended PBH mass function and the possibility of a clustered spatial distribution.…

### Primordial black holes confront LIGO/Virgo data: current situation

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

The LIGO and Virgo Interferometers have so far provided 11 gravitational-wave (GW) observations of black-hole binaries. Similar detections are bound to become very frequent in the near future. With…

### Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo

- PhysicsThe Astrophysical Journal
- 2019

We present results on the mass, spin, and redshift distributions with phenomenological population models using the 10 binary black hole (BBH) mergers detected in the first and second observing runs…

### Merger history of primordial black-hole binaries

- PhysicsPhysical Review D
- 2020

As a candidate of dark matter, primordial black holes (PBHs) have attracted more and more attentions as they could be possible progenitors of the heavy binary black holes (BBHs) observed by…

### Reconstructing phenomenological distributions of compact binaries via gravitational wave observations

- PhysicsPhysical Review D
- 2019

Gravitational wave measurements will provide insight into the population of coalescing compact binaries throughout the universe. We describe and demonstrate a flexible parametric method to infer the…