Official joint communication of the end of O2 run by Virgo and LIGO collaborations.A very exciting LIGO-Virgo Observing run draws to a close on the 25th of August The Virgo and LIGO Scientific Collaborations have been observing since November 30, 2016 in the second Advanced Detector Observing Run ‘O2’, searching for gravitational-wave signals, first with the two LIGO detectors, then with both LIGO and Virgo instruments operating together since August 1, 2017. Some promising gravitational-wave candidates have been identified in data from both LIGO and Virgo during our preliminary analysis, and we have shared what we currently know with astronomical observing partners. We are working hard to assure that the candidates are valid gravitational-wave events, and it will require time to establish the level of confidence needed to bring any results to the scientific community and the greater public. We will let you know as soon we have information ready to share.
The picture shows the Virgo duty cycle during the whole data taking period: we have been taking science data more than 80% of the time over four weeks! Link to the Virgo Web site http://www.virgo-gw.eu/