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Energy-Scale Calibration of the Suzaku X-Ray Imaging Spectrometer Using the Checker Flag Charge Injection Technique in Orbit
Midori Ozawa, Hideki Uchiyama, Hironori Matsumoto +25
The X-ray Imaging Spectrometer (XIS) on board the Suzaku satellite is an X-ray CCD camera system that has superior performance such as a low background, high quantum efficiency, an…
X-Ray Observations of the Sagittarius D HII Region toward the Galactic Center with Suzaku
Makoto Sawada, Masahiro Tsujimoto, Katsuji Koyama +3
We present a Suzaku X-ray study of the Sagittarius D (Sgr D) HII region in the Galactic center region. Two 18'x18' images by the X-ray Imaging Spectrometer (XIS) encompass the enti…
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…
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…
ICM masses in nearby and distant clusters of galaxies
Takeshi Go Tsuru, Hironobu Matsumoto, Katsuji Koyama +4
We compile X-ray data of clusters of galaxies at a wide range of redshift and compare X-ray luminosities, gas masses, iron abundances and iron masses of nearby clust…