13 citations · 24 across the 3 of their papers we have counts for
9 papers
Spectroscopically Identified Intermediate Age Stars at 0.5 - 3 pc Distance from Sgr A*
Shogo Nishiyama, Rainer Schoedel, Tatsuhito Yoshikawa +3
<Context.> Nuclear star clusters (NSCs) at the dynamical center of galaxies appear to have a complex star formation history. This suggests repeated star formation even in the influ…
Number Density Distribution of Near-Infrared Sources on a Sub-Degree Scale in the Galactic Center: Comparison with the Fe XXV Ka Line at 6.7 keV
Kazuki Yasui, Shogo Nishiyama, Tatsuhito Yoshikawa +9
The stellar distribution derived from an and -band survey of the central region of our Galaxy is compared with the Fe XXV K (6.7 keV) line intensity observed…
YSO search toward the boundary of the Central Molecular Zone with near-infrared polarimetry
Tatsuhito Yoshikawa, Shogo Nishiyama, Motohide Tamura +2
We have carried out near-infrared polarimetry toward the boundary of the Central Molecular Zone, in the field of (-1.4 deg -0.3 deg and 1.0 deg $\lesssim l \l…
The Origin of the Galactic Center Diffuse X-ray Emission Investigated by Near-infrared Imaging and Polarimetric Observations
Shogo Nishiyama, Kazuki Yasui, Tetsuya Nagata +3
The origin of the Galactic center diffuse X-ray emission (GCDX) is still under intense investigation. We have found a clear excess in a longitudinal GCDX profile over a stellar num…
Intrinsically Polarized Stars and Implication for Star Formation in the Central Parsec of Our Galaxy
Tatsuhito Yoshikawa, Shogo Nishiyama, Motohide Tamura +2
We have carried out adaptive-optics assisted observations at the Subaru telescope, and have found 11 intrinsically polarized sources in the central parsec of our Galaxy. They are s…
Accretion disk and ionized absorber of the 9.7-hour dipping black hole binary MAXI J1305-704
Megumi Shidatsu, Yoshihiro Ueda, Satoshi Nakahira +14
We report the results from X-ray studies of the newly discovered black hole candidate MAXI J1305-704 based on Suzaku and Swift observations in the low/hard and high/soft states, re…