Optically Thick Outflows of Supercritical Accretion Discs: Radiative Diffusion Approach (2008)
Abolmasov, P., Karpov, S., Kotani, Taro
Highly supercritical accretion discs are probable sources of dense optically thick axisymmetric winds. We introduce a new approach based on diffusion approximation radiative transfer in a funnel...
Optical Spectroscopy of the ULX-Associated Nebula MF16 (2008)
Abolmasov, Pavel, Fabrika, S., Sholukhova, O., Kotani, Taro
We present the results of optical panoramic and long-slit spectroscopy of the nebula MF16 associated with the Ultraluminous X-ray Source NGC6946 ULX-1. More than 20 new emission lines are identified...
Low/Hard State Spectra of GRO J1655-40 Observed with Suzaku (2007)
Takahashi, Hiromitsu, Fukazawa, Yasushi, Mizuno, Tsunefumi, Hirasawa, Ayumi, Kitamoto, Shunji, Sudoh, Keisuke, ...
The Galactic black-hole binary GRO J1655$-$40 was observed with Suzaku on 2005 September 22--23, for a net exposure of 35 ks with the X-ray Imaging Spectrometer (XIS) and 20 ks with the Hard X-ray...
The X-ray observatory Suzaku (2007)
Mitsuda, Kazuhisa, Bautz, Mark, Inoue, Hajime, Kelley, Richard L., Koyama, Katsuji, Kunieda, Hideyo, ...
The plasma structure in the vicinity of the jet of SS 433 (2007)
Kubota, Kaori, Kawai, Nobuyuki, Kotani, Taro, Ueda, Yoshihiro, Brinkmann, Wolfgang
Kubota, Aya, Dotani, Tadayasu, Cottam, Jean, Kotani, Taro, Done, Chris, Ueda, Yoshihiro, ...
We present the results of six Suzaku observations of the recurrent black hole transient 4U1630-472 during its decline from outburst from February 8 to March 23 in 2006. All observations show the...
Evidence for Jet Collimation in SS 433 with the Chandra HETGS (2003)
Namiki, Masaaki, Kawai, Nobuyuki, Kotani, Taro, Makishima, Kazuo
High-resolution X-ray spectra of SS 433 obtained after a binary egress with the Chandra High Energy Transmission Grating Spectrometer (HETGS) were studied. Many Doppler-shifted X-ray emission lines...
SS 433: Radio/X-ray anti-correlation and fast-time variability (2002)
Safi-Harb, Samar, Kotani, Taro
We briefly review the Galactic microquasar SS 433/W50 and present a new RXTE spectral and timing study. We show that the X-ray flux decreases during radio flares, a behavior seen in other...
Kotani, Taro, Ebisawa, Ken, Dotani, Tadayasu, Inoue, Hajime, Nagase, Fumiaki, Tanaka, Yasuo, ...
We have discovered errors in the calculation of some of the Einstein coefficients in Table 5 and some plots in Figure 3. Due to the errors, the square-root section of the curves of growth of Fe xxvi...
ASCA and Ginga Observations of GX 1+4 (1998)
Kotani, Taro, Dotani, Tadayasu, Nagase, Fumiaki, Greenhill, John G., Pravdo, Steven H., Angelini, Lorella
The X-ray binary pulsar GX 1+4 was observed with Ginga every year from 1987 to 1991, and with ASCA in 1994. During the Ginga observations, GX 1+4 was in the steady spindown phase, while the X-ray...