High-redshift Extreme Variability Quasars from Sloan Digital Sky Survey Multi-Epoch Spectroscopy

Hengxiao Guo, Jiacheng Peng, Kaiwen Zhang +9

We perform a systematic search for high-redshift ($z>$ 1.5) extreme variability quasars (EVQs) using repeat spectra from the Sixteenth Data Release of Sloan Digital Sky Survey, wh…