# GW190425, GW190521 and GW190814: Three candidate mergers of primordial black holes from the QCD epoch

@article{Clesse2020GW190425GA, title={GW190425, GW190521 and GW190814: Three candidate mergers of primordial black holes from the QCD epoch}, author={S{\'e}bastien Clesse and Juan Garc{\'i}a-Bellido}, journal={arXiv: Cosmology and Nongalactic Astrophysics}, year={2020} }

The two recent gravitational-wave events GW190425 and GW190814 from the third observing run of LIGO/Virgo have both a companion which is unexpected if originated from a neutron star or a stellar black hole, with masses $[1.6-2.5]~M_\odot$ and $[2.5-2.7]~M_\odot$ and merging rates $ 460^{+1050}_{-360} $ and $ 7^{+16}_{-6}$ events/yr/Gpc$^3$ respectively, at 90\% c.l.. Moreover, the recent event GW190521 has black hole components with masses 66 and $85~M_\odot$, and therefore lies in the so…

## 24 Citations

Search for Gravitational Waves from the Coalescence of Subsolar-Mass Binaries in the First Half of Advanced LIGO and Virgo's Third Observing Run.

- Physics, GeologyPhysical review letters
- 2021

A search for gravitational waves from the coalescence of subsolar-mass black hole binaries using data from the first half of Advanced LIGO and Virgo's third observing run is presented and limits are demonstrated to constrain arbitrary models of the primordial black hole mass distribution and merger rate.

The astro-primordial black hole merger rates: a reappraisal

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

Mainly motivated by the recent GW190521 mass gap event which we take as a benchmark point, we critically assess if binaries made of a primordial black hole and a black hole of astrophysical origin…

Broad search for gravitational waves from subsolar-mass binaries through LIGO and Virgo’s third observing run

- PhysicsPhysical Review D
- 2022

We present a search for gravitational waves from the coalescence of binaries which contain at least one subsolar mass component using data from the LIGO and Virgo observatories through the completion…

Testing Primordial Black Holes with multi-band observations of the stochastic gravitational wave background

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2021

The mass distribution of Primordial Black Holes (PBHs) is affected by drops in the pressure of the early Universe plasma. For example, events in the standard model of particle physics, such as the W…

Constraints on planetary and asteroid-mass primordial black holes from continuous gravitational-wave searches

- PhysicsPhysical Review D
- 2022

We present new constraints on the merging rates of planetary-mass and asteroid-mass primordial black hole binaries using limits on continuous waves (quasi-monochromatic, quasi-inﬁnite duration…

Black hole induced spins from hyperbolic encounters in dense clusters

- Physics, GeologyPhysics of the Dark Universe
- 2021

GWTC-2.1: Deep Extended Catalog of Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run

- Physics
- 2021

The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15:00 UTC and 1…

Exploring the High-redshift PBH-ΛCDM Universe: Early Black Hole Seeding, the First Stars and Cosmic Radiation Backgrounds

- PhysicsThe Astrophysical Journal
- 2022

We explore the observational implications of a model in which primordial black holes (PBHs) with a broad birth mass function ranging in mass from a fraction of a solar mass to ∼106 M ⊙, consistent…

Compact Binary Coalescences: Astrophysical Processes and Lessons Learned

- PhysicsGalaxies
- 2022

On 11 February 2016, the LIGO and Virgo scientific collaborations announced the first direct detection of gravitational waves, a signal caught by the LIGO interferometers on 14 September 2015, and…

Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

- PhysicsAstronomy & Astrophysics
- 2021

Intermediate-mass black holes (IMBHs) span the approximate mass range 100 − 10 5 M (cid:12) , between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of…