TITLE: GCN CIRCULAR NUMBER: 24591 SUBJECT: LIGO/Virgo S190518bb: Retraction of GW compact binary merger candidate DATE: 19/05/18 20:08:37 GMT FROM: Geoffrey Mo at LIGO The LIGO Scientific Collaboration and the Virgo Collaboration report: The trigger S190518bb is no longer considered to be a gravitational wave signal. The data in LIGO-Hanford was highly non-stationary leading up to the reported trigger time.