67 citations · 159 across the 13 of their papers we have counts for
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astro-ph2002★ 7 cited
Radio/X-Ray Luminosity Relation for X-Ray Bright Galactic Nuclei: Implications on Weighing Supermassive Black Hole
Heon-Young Chang, Chul-Sung Choi, Insu Yi
Optically thin and geometrically thick accretion flows are known to be responsible for the observed radio/X-ray luminosity relation of the X-ray bright galactic nuclei. It has also…
astro-ph2002★ 10 cited
Long-Term X-Ray Variabilities of the Seyfert Galaxy MCG-2-58-22 : Secular Flux Decrease and Flares
Chul-Sung Choi, Tadayasu Dotani, Heon-Young Chang +1
We have studied the long-term X-ray light curve (210 keV) of the luminous Seyfert 1 galaxy MCG-2-58-22 by compiling data, from various X-ray satellites, which together cover mor…