LIGO Scientific Collaboration; Virgo Collaboration; Aggarwal, Nancy; Barnum, Sam; Barsotti, Lisa; Biscans, Sebastien; Biscoveanu, Sylvia; Buikema, Aaron; Demos, Nicholas; Donovan, Frederick J; Eisenstein, Robert Alan; Evans, Matthew J; Fernandez Galiana, Alvaro-Miguel; Fishner, Jason M.; Fritschel, Peter K; Gras, Slawomir; Hall, E. D.; Haster, Carl-Johan; Huang, Y.; Isi Banales, Maximiliano S; Katsavounidis, Erotokritos; Lane, B. B.; Lanza Jr, Robert K; London, L. T.; Lynch, Ryan Christopher; MacInnis, Myron E; Mansell, Georgia; Mason, Kenneth R; Matichard, Fabrice; Mavalvala, Nergis; McCuller, Lee P; Mittleman, Richard K; Ray Pitambar Mohapatra, Satyanarayan; Ng, Kwan Yeung; Shoemaker, David H; Sudhir, Vivishek; Tse, Maggie; Vitale, Salvatore; Weiss, Rainer; Whittle, Christopher Mark; Yu, Hang; Yu, Haocun; Zucker, Michael E (American Astronomical Society, )