Search for advanced LIGO single interferometer compact binary coalescence signals in coincidence with Gamma-ray events in Fermi-GBM

Stachie, C. and Canton, T.D. and Burns, E. and Christensen, N. and Hamburg, R. and Veres, Péter (2020) Search for advanced LIGO single interferometer compact binary coalescence signals in coincidence with Gamma-ray events in Fermi-GBM. CLASSICAL AND QUANTUM GRAVITY, 37 (17). ISSN 0264-9381

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Abstract

Presented is the description of a new and general method used to search for $\\gamma$-ray counterparts to gravitational-wave (GW) triggers. Thi method is specifically applied to single GW detector triggers. Advance LIGO data from observing runs O1 and O2 were analyzed, thus each G trigger comes from either the LIGO-Livingston or the LIGO-Hanfor interferometer. For each GW trigger, Fermi Gamma-ray Burst Monitor dat is searched and the most significant subthreshold signal counterpart i selected. Then, a methodology is defined in order to establish which o GW-$\\gamma$-ray pairs are likely to have a common origin. For tha purpose an association ranking statistic is calculated from which false alarm rate is derived. The events with the highest rankin statistics are selected for further analysis consisting of LIGO detecto characterization and parameter estimation. The $\\gamma$-ray signa characteristics are also evaluated. We find no significant candidate from the search

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