Buikema, A. et al. (2020) Sensitivity and performance of the Advanced LIGO detectors in the third observing run. Physical Review D, 102, 062003. (doi: 10.1103/PhysRevD.102.062003) Text 334428.pdf - Published Version Available under License Creative Commons Attribution. 3MB Abstract On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by the Advanced Virgo detector, began the third observing run, a year-long dedicated search for gravitational radiation.