Advanced LIGO detectors begin second observation run “O2”
On Wednesday, 30 November, 2016, the Advanced LIGO (aLIGO) detectors in the USA and GEO600 near Hannover, Germany, officially began their second observation run “O2”. The aLIGO sensitivity is increased compared to the first observation run (O1) during which gravitational waves from two colliding black hole pairs were observed. Researchers of the LIGO Scientific Collaboration at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute; AEI) in Hannover and Potsdam have continued to improve the data-analysis tools, the source modeling, and the detector technology. They are leading partners in the international gravitational physics community and expect further signals to be detected in O2.