Gemini GNIRS near-infrared spectroscopy of 50 quasars at z>~5.7

Yue Shen, Jin Wu, Linhua Jiang, Eduardo Banados, Xiaohui Fan, Luis C. Ho, Dominik A. Riechers, Michael A. Strauss, Bram Venemans, Marianne Vestergaard, Fabian Walter, Feige Wang, Chris Willott, Xue-Bing Wu, Jinyi Yang