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We present the first Open Gravitational-wave Catalog (1-OGC), obtained byusing the public data from Advanced LIGO's first observing run to search forcompact-object binary mergers. Our analysis is based on new methods thatimprove the separation between signals and noise in matched-filter searches forgravitational waves from the merger of compact objects. The three mostsignificant signals in our catalog correspond to the binary black hole mergersGW150914, GW151226, and LVT151012. We assume a common population of binaryblack holes for these three signals by defining a region of parameter spacethat is consistent with these events. Under this assumption, we find thatLVT151012 has a 97.6\% probability of being astrophysical in origin. No othersignificant binary black hole candidates are found, nor did we observe anysignificant binary neutron star or neutron star--black hole candidates. We makeavailable our complete catalog of events, including the sub-thresholdpopulation of candidates.

1-OGC: The first open gravitational-wave catalog of binary mergers from analysis of public Advanced LIGO data