THE QUASAR PG 1302-102 HAS BEEN PROPOSED AS A CANDIDATE SUPERMASSIVE BLACK HOLE BINARY (SMBHB) AT A SUB-PARSEC SEPARATION BUT ITS BINARY HYPOTHESIS IS STILL THE SUBJECT OF VIGOROUS DEBATE.
$0FY2022National Aeronautics and Space AdministrationNASA
University Of Wisconsin System, Madison WI