353 citations · 828 across the 12 of their papers we have counts for
6 papers · 1 filter
Magnetically Confined Interstellar Hot Plasma in the Nuclear Bulge of our Galaxy
Shogo Nishiyama, Kazuki Yasui, Tetsuya Nagata +9
The origin of the Galactic center diffuse X-ray emission (GCDX) is still under intense investigation. In particular, the interpretation of the hot (kT ~ 7 keV) component of the GCD…
The efficiency and wavelength dependence of near-infrared interstellar polarization toward the Galactic center
Hirofumi Hatano, Shogo Nishiyama, Mikio Kurita +10
Near-infrared polarimetric imaging observations toward the Galactic center have been carried out to examine the efficiency and wavelength dependence of interstellar polarization. A…
Magnetic Field Configuration at the Galactic Center Investigated by Wide Field Near-Infrared Polarimetry: Transition from a Toroidal to a Poloidal Magnetic Field
Shogo Nishiyama, Hirofumi Hatano, Motohide Tamura +8
We present a large-scale view of the magnetic field in the central 2deg * 2deg region of our Galaxy. The polarization of point sources has been measured in the J, H, and Ks bands u…
Near-infrared Polarimetry toward the Galactic Center - Magnetic Field Configuration in the Central One Degree Region -
Shogo Nishiyama, Hirofumi Hatano, Motohide Tamura +1
We present a NIR polarimetric map of the 1deg by 1deg region toward the Galactic center. Comparing Stokes parameters between highly reddened stars and less reddened ones, we have o…
Near-infrared Polarimetry of flares from Sgr A* with Subaru/CIAO
Shogo Nishiyama, Motohide Tamura, Hirofumi Hatano +5
We have performed near-infrared monitoring observations of Sgr A*, the Galactic center radio source associated with a supermassive black hole, with the near-infrared camera CIAO an…
Interstellar Extinction Law toward the Galactic Center III: J, H, Ks bands in the 2MASS and the MKO systems, and 3.6, 4.5, 5.8, 8.0 micron in the Spitzer/IRAC system
Shogo Nishiyama, Motohide Tamura, Hirofumi Hatano +4
We have determined interstellar extinction law toward the Galactic center (GC) at the wavelength from 1.2 to 8.0 micron, using point sources detected in the IRSF/SIRIUS near-infrar…