Search for eccentric binary black hole mergers with advanced LIGO and advanced Virgo during their first and second observing runs

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dc.contributor.author Sengupta, Anand S.
dc.date.accessioned 2019-11-19T11:29:01Z
dc.date.available 2019-11-19T11:29:01Z
dc.date.issued 2019-09
dc.identifier.citation Sengupta, Anand S. et al., "Search for eccentric binary black hole mergers with advanced LIGO and advanced Virgo during their first and second observing runs", The Astrophysical Journal, DOI: 10.3847/1538-4357/ab3c2d, vol. 883, no. 2, Oct. 2019. en_US
dc.identifier.issn 0004-637X
dc.identifier.issn 1538-4357
dc.identifier.uri https://iopscience.iop.org/article/10.3847/1538-4357/ab3c2d
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/4938
dc.description.abstract When formed through dynamical interactions, stellar-mass binary black holes (BBHs) 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 BBH mergers. Current template-based gravitational-wave searches do not use waveform models associated with eccentric orbits, rendering the search less efficient for eccentric binary systems. Here we present the results of a search for BBH mergers that inspiral in eccentric orbits using data from the first and second observing runs (O1 and O2) of Advanced LIGO and Advanced Virgo. We carried out the search with the coherent WaveBurst algorithm, which uses minimal assumptions on the signal morphology and does not rely on binary waveform templates. 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. We rule out formation channels with rates gsim100 Gpc?3 yr?1 for e > 0.1, assuming a black hole mass spectrum with a power-law index lesssim2.
dc.description.statementofresponsibility by Anand S. Sengupta et al.
dc.format.extent vol. 883, no. 2
dc.language.iso en_US en_US
dc.publisher American Astronomical Society en_US
dc.title Search for eccentric binary black hole mergers with advanced LIGO and advanced Virgo during their first and second observing runs en_US
dc.type Article en_US
dc.relation.journal Astrophysical Journal


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