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Presented is the description of a new and general method used to search for$\gamma$-ray counterparts to gravitational-wave (GW) triggers. This method isspecifically applied to single GW detector triggers. Advanced LIGO data fromobserving runs O1 and O2 were analyzed, thus each GW trigger comes from eitherthe LIGO-Livingston or the LIGO-Hanford interferometer. For each GW trigger,Fermi Gamma-ray Burst Monitor data is searched and the most significantsubthreshold signal counterpart is selected. Then, a methodology is defined inorder to establish which of GW-$\gamma$-ray pairs are likely to have a commonorigin. For that purpose an association ranking statistic is calculated fromwhich a false alarm rate is derived. The events with the highest rankingstatistics are selected for further analysis consisting of LIGO detectorcharacterization and parameter estimation. The $\gamma$-ray signalcharacteristics are also evaluated. We find no significant candidates from thesearch.

Search for Advanced LIGO Single Interferometer Compact Binary Coalescence Signals in Coincidence with Gamma-Ray Events in Fermi-GBM