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Two Power-Law States of the Ultraluminous X-ray Source IC342 X-1
Tessei Yoshida, Naoki Isobe, Shin Mineshige +3
In order to elucidate the emission properties of ultraluminous X-ray sources (ULXs) during their power-law (PL) state, we examined long-term X-ray spectral data of IC342 X-1 during…
Binary Black Hole Accretion Flows From a Misaligned Circumbinary Disk
Kimitake Hayasaki, Hideki Saito, Shin Mineshige
We study the basic properties of accretion flows onto binary supermassive black holes, including the cases in which a circumbinary disk is misaligned with the binary orbital plane,…
The ASTRO-H X-ray Observatory
Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley +220
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space and Astronautical Science (ISAS). ASTRO-H will…
The Structure and Spectral Features of a Thin Disk and Evaporation-Fed Corona in High-Luminosity AGNs
J. Y. Liu, B. F. Liu, E. L. Qiao +1
We investigate the accretion process in high-luminosity AGNs (HLAGNs) in the scenario of the disk evaporation model. Based on this model, the thin disk can extend down to the inner…
Gravitational wave diagnosis of a circumbinary disk
Kimitake Hayasaki, Kent Yagi, Takahiro Tanaka +1
When binary black holes are embedded in a gaseous environment, a rotating disk surrounding them, the so-called circumbinary disk, will be formed. The binary exerts a gravitational…