The Advanced LIGO photon calibrators.

  title={The Advanced LIGO photon calibrators.},
  author={Sudarshan Karki and Darkhan Tuyenbayev and Shivaraj Kandhasamy and Brad Abbott and Thomas Abbott and E. H. Anders and J. M. Berliner and Joe Betzwieser and C. Cahillane and L. Canete and C. Conley and H. P. Daveloza and N. De Lillo and Joseph Gleason and E Goetz and Kiwamu Izumi and Jeffrey Kissel and Greg Mendell and Volker Quetschke and Michael Rodruck and Surabhi Sachdev and Travis Sadecki and P. B. Schwinberg and Alberto Sottile and Madeline Wade and Allan J. Weinstein and M. West and Richard L. Savage},
  journal={The Review of scientific instruments},
  volume={87 11},
The two interferometers of the Laser Interferometry Gravitational-wave Observatory (LIGO) recently detected gravitational waves from the mergers of binary black hole systems. Accurate calibration of the output of these detectors was crucial for the observation of these events and the extraction of parameters of the sources. The principal tools used to calibrate the responses of the second-generation (Advanced) LIGO detectors to gravitational waves are systems based on radiation pressure and… 
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