Optical and near-infrared spectroscopy of quasars at $z>6.5$: public data release and composite spectrum

Silvia Onorato, Joseph F. Hennawi, Jan-Torge Schindler +18

We present optical and near-infrared (NIR) spectroscopic observations for a sample of $45$ quasars at $6.50<z\le 7.64$ with absolute magnitudes at $1450$ Å in the range $-28.82…