Browsing by Author "Paek, Gregory S. H."

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    • Unusual Hard X-Ray Flares Caught in NICER Monitoring of the Binary Supermassive Black Hole Candidate AT2019cuk/Tick Tock/SDSS J1430+2303 

      Masterson, Megan; Kara, Erin; Pasham, Dheeraj R.; D’Orazio, Daniel J.; Walton, Dominic J.; Fabian, Andrew C.; Lucchini, Matteo; Remillard, Ronald A.; Arzoumanian, Zaven; Burkhonov, Otabek; Choi, Hyeonho; Ehgamberdiev, Shuhrat A.; Ferrara, Elizabeth C.; Guolo, Muryel; Im, Myungshin; Kim, Yonggi; Mirzaqulov, Davron O.; Paek, Gregory S. H.; Sung, Hyun-Il; Yoon, Joh-Na (2023-03-14)
      The nuclear transient AT2019cuk/Tick Tock/SDSS J1430+2303 has been suggested to harbor a supermassive black hole (SMBH) binary near coalescence. We report results from high-cadence NICER X-ray monitoring with multiple ...