Browsing Research publications by Author "Masterson, Megan"

Now showing items 1-2 of 2

    • The high energy X-ray probe (HEX-P): probing the physics of the X-ray corona in active galactic nuclei 

      Kammoun, Elias; Lohfink, Anne M.; Masterson, Megan; Wilkins, Dan R.; Zhao, Xiurui; Balokovic, Mislav; Boorman, Peter G.; Connors, Riley; Coppi, Paolo; Fabian, Andrew; García, Javier A.; Madsen, Kristin K.; Rodriguez Cavero, Nicole; Sridhar, Navin; Stern, Daniel; Tomsick, John; Wevers, Thomas; Walton, Dominic J.; Bianchi, Stefano; Buchner, Johannes; Civano, Francesca M.; Lanzuisi, Giorgio; Mallick, Labani; Matt, Giorgio; Merloni, Andrea; Nardini, Emanuele; Piotrowska, Joanna M.; Ricci, Claudio; Wong, Ka-Wah; Zoghbi, Abderahmen (2024-01-05)
      The hard X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries is thought to be produced by a hot cloud of electrons referred to as the corona. This emission, commonly described by a power law with ...

    • 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 ...