Kavli Affiliate: Joshua Frieman | First 5 Authors: Yu-Ching Chen, Xin Liu, Wei-Ting Liao, A. Miguel Holgado, Hengxiao Guo | Summary: Periodically variable quasars have been suggested as close binary supermassive black holes. We present a systematic search for periodic light curves in 625 spectroscopically confirmed quasars with a median redshift of 1.8 in a […]
Continue.. Candidate Periodically Variable Quasars from the Dark Energy Survey and the Sloan Digital Sky Survey