161 citations · 345 across the 10 of their papers we have counts for
10 papers · 1 filter
Molecular Superbubbles and Outflows from Starburst Galaxy NGC 2146
An-Li Tsai, Satoki Matsushita, Kouichiro Nakanishi +7
We present results from a deep (1 sigma = 5.7 mJy beam^{-1} per 20.8 km s^{-1} velocity channel) ^{12}CO(1-0) interferometric observation of the central 60" region of the nearby ed…
Spatial Distribution of the Galactic Center Diffuse X-Rays and the Spectra of the Brightest 6.4keV Clumps
Katsuji Koyama, Yojiro Takikawa, Yoshiaki Hyodo +4
The high energy resolution and low background, particularly in the hard X-ray band, of the X-ray Imaging Spectrometer onboard Suzaku provide excellent spectra of the Galactic cente…
Time Variability of the Neutral Iron Lines from the Sgr B2 Region and its Implication of a Past Outburst of Sgr A
Tatsuya Inui, Katsuji Koyama, Hironori Matsumoto +1
We investigate long-term X-ray behaviors from the Sgr B2 complex using archival data of the X-ray satellites Suzaku, XMM-Newton, Chandra and ASCA. The observed region of the Sgr B2…
Suzaku Spectroscopy of an X-Ray Reflection Nebula and a New Supernova Remnant Candidate in the Sgr B1 Region
Masayoshi Nobukawa, Takeshi Go Tsuru, Yojiro Takikawa +7
We made a 100 ks observation of the Sagittarius (Sgr) B1 region at (l, b) = (0.5, -0.1) near to the Galactic center (GC) with the Suzaku/XIS. Emission lines of S XV, Fe I, Fe XXV,…
A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole
Katsuji Koyama, Tatsuya Inui, Hironori Matsumoto +1
A time-variability study of the neutral iron line flux at 6.40keV in the Sgr B2 region from data of Suzaku and Chandra is presented. The highly ionized iron line at 6.68keV is due…
Development of an n-channel CCD, CCD-NeXT1, for Soft X-ray Imager onboard the NeXT satellite
Shin-ichiro Takagi, Takeshi Go Tsuru, Tatsuya Inui +10
NeXT (New X-ray Telescope) is the next Japanese X-ray astronomical satellite mission after the Suzaku satellite. NeXT aims to perform wide band imaging spectroscopy. Due to the suc…