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  3-OGC: Catalog of gravitational waves from compact-binary mergers

Nitz, A. H., Capano, C., Kumar, S., Wang, Y.-F., Kastha, S., Schäfer, M., et al. (2021). 3-OGC: Catalog of gravitational waves from compact-binary mergers. The Astrophysical Journal, 922(1): 76. doi:10.3847/1538-4357/ac1c03.

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 Creators:
Nitz, Alexander H.1, Author           
Capano, Collin1, Author           
Kumar, Sumit1, Author           
Wang, Yi-Fan1, Author           
Kastha, Shilpa1, Author           
Schäfer, Marlin2, Author           
Dhurkunde, Rahul1, Author           
Cabero, Miriam1, Author           
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
2Binary Merger Observations and Numerical Relativity, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_2461691              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present the third Open Gravitational-wave Catalog (3-OGC) of compact-binary coalescences, based on the analysis of the public LIGO and Virgo data from 2015 through 2019 (O1, O2, O3a). Our updated catalog includes a population of 57 observations, including four binary black hole mergers that had not previously been reported. This consists of 55 binary black hole mergers and the two binary neutron star mergers GW170817 and GW190425. We find no additional significant binary neutron star or neutron star--black hole merger events. The most confident new detection is the binary black hole merger GW190925\_232845 which was observed by the LIGO Hanford and Virgo observatories with $\mathcal{P}_{\textrm{astro}} > 0.99$; its primary and secondary component masses are $20.2^{+3.9}_{-2.5} M_{\odot}$ and $15.6^{+2.1}_{-2.6} M_{\odot}$, respectively. We estimate the parameters of all binary black hole events using an up-to-date waveform model that includes both sub-dominant harmonics and precession effects. To enable deep follow-up as our understanding of the underlying populations evolves, we make available our comprehensive catalog of events, including the sub-threshold population of candidates, and the posterior samples of our source parameter estimates.

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 Dates: 2021-05-192021-05-272021
 Publication Status: Published in print
 Pages: 15 pages, 5 figures, 4 tables, v2 fixes references / typos. Supplementary material at https://github.com/gwastro/3-ogc
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 Identifiers: arXiv: 2105.09151
DOI: 10.3847/1538-4357/ac1c03
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Title: The Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 922 (1) Sequence Number: 76 Start / End Page: - Identifier: -