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  Search for Eccentric Binary Black Hole Mergers with Advanced LIGO and Advanced Virgo during Their First and Second Observing Runs

The LIGO Scientific Collaboration, The Virgo Collaboration, & Salemi, F. (2019). Search for Eccentric Binary Black Hole Mergers with Advanced LIGO and Advanced Virgo during Their First and Second Observing Runs. The Astrophysical Journal, 883 (2): 149. doi:10.3847/1538-4357/ab3c2d.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-EE7B-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-EE7F-3
Genre: Journal Article

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1907.09384.pdf (Preprint), 358KB
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The LIGO Scientific Collaboration, Author              
The Virgo Collaboration, Author              
Salemi, F.1, Author              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: When formed through dynamical interactions, stellar-mass binary black holes may retain eccentric orbits ($e>0.1$ at 10 Hz) detectable by ground-based gravitational-wave detectors. Eccentricity can therefore be used to differentiate dynamically-formed binaries from isolated binary black hole mergers. Current template-based gravitational-wave searches do not use waveform models associated to eccentric orbits, rendering the search less efficient to eccentric binary systems. Here we present results of a search for binary black hole mergers that inspiral in eccentric orbits using data from the first and second observing runs (O1 and O2) of Advanced LIGO and Advanced Virgo. The search uses minimal assumptions on the morphology of the transient gravitational waveform. We show that it is sensitive to binary mergers with a detection range that is weakly dependent on eccentricity for all bound systems. Our search did not identify any new binary merger candidates. We interpret these results in light of eccentric binary formation models.

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 Dates: 2019-07-222019
 Publication Status: Published in print
 Pages: 7 pages, 2 figures
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1907.09384
URI: http://arxiv.org/abs/1907.09384
DOI: 10.3847/1538-4357/ab3c2d
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Title: The Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 883 (2) Sequence Number: 149 Start / End Page: - Identifier: -