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  Potential Gravitational-wave and Gamma-ray Multi-messenger Candidate from Oct. 30, 2015

Nitz, A. H., Nielsen, A. B., & Capano, C. (in preparation). Potential Gravitational-wave and Gamma-ray Multi-messenger Candidate from Oct. 30, 2015.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-3E42-E Version Permalink: http://hdl.handle.net/21.11116/0000-0003-3E43-D
Genre: Paper

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1902.09496.pdf (Preprint), 2MB
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 Creators:
Nitz, Alexander H.1, Author              
Nielsen, Alex B.1, Author              
Capano, Collin1, 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,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present a search for binary neutron star mergers during the first observing run of Advanced LIGO that produce both gravitational-wave and gamma-ray emission similar to GW170817 and GRB 170817A. We introduce a method to detect sources that do not produce significant gravitational-wave or gamma-ray burst candidates individually. Searches of this type can increase by 70\% the detections of joint gravitational-wave and gamma-ray signals. We find one possible candidate at a false alarm rate of 1 in 13 years. If confirmed, this candidate would correspond to a merger at $187^{+99}_{-87}\,$Mpc with source-frame chirp mass of $1.30^{+0.02}_{-0.03}\,M_{\odot}$. If we assume the viewing angle must be $<30^{\circ}$ to be observed by Fermi-GBM, our estimate of the distance would become $224^{+88}_{-78}\,$Mpc. By comparing the rate of binary neutron star mergers to our search-estimated rate of false alarms, we estimate that there is a 1 in 4 chance this candidate is astrophysical in origin.

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 Dates: 2019-02-25
 Publication Status: Not specified
 Pages: 8 pages, 5 figures, supplementary data at https://github.com/gwastro/o1-gwgrb
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1902.09496
URI: http://arxiv.org/abs/1902.09496
 Degree: -

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