184 citations · 789 across the 16 of their papers we have counts for
17 papers
Radiation Pressure Instability-Driven Variability of Line-Driven Disk Winds in AGNs: Connection to Periodic Luminosity Variations and UFO Appearance
Yutaro Kuroda, Ken Ohsuga, Mariko Nomura +1
We investigated the temporal variability of line-driven disk winds induced by radiation pressure instability in accretion disks surrounding supermassive black holes. This is the fi…
Optical Light Curves of Luminous Eclipsing Black Hole X-ray Binaries
Ken-ya Watarai, Jun Fukue
We examine optical V-band light curves in luminous eclipsing black hole X-ray binaries, using a supercritical accretion/outflow model that is more realistic than the formerly used…
Relativistic Spectra of Hot Black-Hole Winds
Naoko Sumitomo, Hideki Saito, Jun Fukue +1
We examine hybrid thermal-nonthermal synchrotron spectra from a spherically symmetric, optically-thin wind, taking into account the relativistic effect. In the relativistic flow fr…
Observational Appearance of Relativistic, Spherically Symmetric Massive Winds
N. Sumitomo, S. Nishiyama, C. Akizuki +2
The photon mean free path in a relativistically moving medium becomes long in the down-stream direction while short in the up-stream direction. As a result, the observed optical de…
On Black Hole Mass Estimation from X-ray Spectra of Ultraluminous X-ray Sources
Kiki Vierdayanti, Ken-ya Watarai, Shin Mineshige
We propose a methodology to derive a black-hole mass for super-critical accretion flow. Here, we use the extended disk blackbody (extended DBB) model, a fitting model in which the…
Eclipsing light curves for accretion flows around a rotating black hole and atmospheric effects of the companion star
Rohta Takahashi, Ken-Ya Watarai
We calculate eclipsing light curves for accretion flows around a rotating black hole taking into account the atmospheric effects of the companion star. In the cases of no atmospher…