# Orbital eccentricities in primordial black hole binaries

@article{Cholis2016OrbitalEI,
title={Orbital eccentricities in primordial black hole binaries},
author={Ilias Cholis and Ely D. Kovetz and Yacine Ali-Haimoud and Simeon Bird and Marc Kamionkowski and Julian B. Mu{\~n}oz and Alvise Raccanelli},
journal={Physical Review D},
year={2016},
volume={94},
pages={084013}
}
• Published 23 June 2016
• Physics, Geology
• Physical Review D
It was recently suggested that the merger of $\ensuremath{\sim}30\text{ }\text{ }{M}_{\ensuremath{\bigodot}}$ primordial black holes (PBHs) may provide a significant number of events in gravitational-wave observatories over the next decade, if they make up an appreciable fraction of the dark matter. Here we show that measurement of the eccentricities of the inspiralling binary black holes can be used to distinguish these binaries from those produced by more traditional astrophysical mechanisms…
70 Citations

## Figures and Tables from this paper

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
Formation and evolution of primordial black hole binaries in the early universe
• Physics
Journal of Cosmology and Astroparticle Physics
• 2019
The abundance of primordial black holes (PBHs) in the mass range $0.1 - 10^3 M_\odot$ can potentially be tested by gravitational wave observations due to the large merger rate of PBH binaries formed
Signatures of primordial black holes as seeds of supermassive black holes
• Physics
• 2017
It is broadly accepted that Supermassive Black Holes (SMBHs) are located in the centers of most massive galaxies, although there is still no convincing scenario for the origin of their massive seeds.
Primordial black holes as generators of cosmic structures
• Physics
• 2018
Primordial black holes (PBHs) could provide the dark matter in various mass windows below $10^2 M_{\odot}$ and those of $30 M_{\odot}$ might explain the LIGO events. PBHs much larger than this might
Eccentric Black Hole Mergers Forming in Globular Clusters
We derive the probability for a newly formed binary black hole (BBH) to undergo an eccentric gravitational wave (GW) merger during binary-single interactions inside a stellar cluster. By integrating
Black hole mergers from globular clusters observable by LISA II. Resolved eccentric sources and the gravitational wave background
• Physics
Monthly Notices of the Royal Astronomical Society
• 2018
In paper I of this series we showed that a large percentage of the binary black hole (BBH) mergers that form through dynamical interactions in globular clusters will have significant eccentricity in
Has LIGO detected primordial black hole dark matter? - tidal disruption in binary black hole formation
• Physics
• 2020
The frequent detection of binary mergers of $\sim 30 M_{\odot}$ black holes (BHs) by the Laser Interferometer Gravitational-Wave Observatory (LIGO) rekindled researchers' interest in primordial BHs
Eccentricity estimate for black hole mergers with numerical relativity simulations
• Physics, Geology
Nature Astronomy
• 2022
The origin of black hole mergers discovered by the LIGO 1 and Virgo 2 gravitational-wave observatories is currently unknown. GW190521 3 , 4 is the heaviest black hole merger detected so far. Its
Primordial-black-hole mergers in dark-matter spikes
• Physics
Physical Review D
• 2019
It has been suggested that primordial black holes (PBHs) of roughly 30 solar masses could make up the dark matter and if so, might account for the recent detections by LIGO involving binary black
Cosmological implications of Primordial Black Holes
• Physics
• 2017
The possibility that a relevant fraction of the dark matter might be comprised of Primordial Black Holes (PBHs) has been seriously reconsidered after LIGO's detection of a $\sim 30 M_{\odot}$ binary