Uchiyama, Hideki, Ozawa, Midori, Matsumoto, Hironori, Tsuru, Takeshi Go, Koyama, Katsuji, Kimura, Masashi, ...
The charge transfer inefficiency (CTI) of the X-ray CCDs on board the Suzaku satellite (X-ray Imaging Spectrometers; XIS) has increased since the launch due to radiation damage, and the energy...
Ozawa, Midori, Uchiyama, Hideki, Matsumoto, Hironori, Nakajima, Hiroshi, Koyama, Katsuji, Tsuru, Takeshi Go, ...
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, and good energy...
Sato, Kosuke, Matsushita, Kyoko, Ishisaki, Yoshitaka, Yamasaki, Noriko Y., Ishida, Manabu, Ohashi, Takaya
Temperature and abundance distributions of the intra-cluster medium (ICM) in the NGC 507 group of galaxies were studied with Suzaku. Observed concentric annular spectra were well-represented by a two...
Restoring the Suzaku Source Position Accuracy and Point-Spread Function (2008)
Uchiyama, Yasunobu, Maeda, Yoshitomo, Ebara, Masatoshi, Fujimoto, Ryuichi, Ishisaki, Yoshitaka, Ishida, Manabu, ...
We present an empirical correction of sky coordinates of X-ray photons obtained with the XIS aboard the Suzaku satellite to improve the source position accuracy and restore the point-spread function...
Reproducibility of Non-X-ray Background for the X-ray Imaging Spectrometer aboard Suzaku (2008)
Tawa, Noriaki, Hayashida, Kiyoshi, Nagai, Masaaki, Nakamoto, Hajime, Tsunemi, Hiroshi, Yamaguchi, Hiroya, ...
One of the advantages of the X-ray Imaging Spectrometer (XIS) system on board Suzaku is its low and stable non-X-ray background (NXB). In order to make the best use of this advantage, modeling the...
In Orbit Timing Calibration of the Hard X-Ray Detector on Board Suzaku (2007)
Terada, Yukikatsu, Enoto, Teruaki, Miyawaki, Ryouhei, Ishisaki, Yoshitaka, Dotani, Tadayasu, Ebisawa, Ken, ...
The hard X-ray detector (HXD) on board the X-ray satellite Suzaku is designed to have a good timing capability with a 61 $\mu$s time resolution. In addition to detailed descriptions of the HXD timing...
Tokoi, Kazuyo, Sato, Kosuke, Ishisaki, Yoshitaka, Ohashi, Takaya, Yamasaki, Noriko Y., Nakazawa, Kazuhiro, ...
We present results of 120 ks observation of a compact group of galaxies HCG~62 ($z=0.0145$) with Suzaku XIS and HXD-PIN\@. The XIS spectra for four annular regions were fitted with two temperature...
Sato, Kosuke, Tokoi, Kazuyo, Matsushita, Kyoko, Ishisaki, Yoshitaka, Yamasaki, Noriko Y., Ishida, Manabu, ...
We studied the properties of the intra-cluster medium (ICM) in two clusters of galaxies (AWM 7 and Abell 1060) and two groups (HCG 62 and NGC 507) with the X-ray Observatory Suzaku. Based on...
Suzaku Observations of AWM 7 Cluster of Galaxies: Temperature, Abundance and Bulk Motions (2007)
Sato, Kosuke, Matsushita, Kyoko, Ishisaki, Yoshitaka, Yamasaki, Noriko Y., Ishida, Manabu, Sasaki, Shin, ...
We carried out 3 observations of the cluster of galaxies AWM 7, for the central region and 20'-east and 20'-west offset regions, with Suzaku. Temperature and abundance profiles are measured out to...
Sato, Kosuke, Yamasaki, Noriko Y., Ishida, Manabu, Ishisaki, Yoshitaka, Ohashi, Takaya, Kawahara, Hajime, ...
We carried out observations of the central and 20' east offset regions of the cluster of galaxies Abell 1060 with Suzaku. Spatially resolved X-ray spectral analysis has revealed temperature and...
Evidence for solar-wind charge-exchange X-ray emission from the Earth's magnetosheath (2007)
Fujimoto, Ryuichi, Mitsuda, Kazuhisa, McCammon, Dan, Takei, Yoh, Bauer, Michael, Ishisaki, Yoshitaka, ...
The X-ray observatory Suzaku (2007)
Mitsuda, Kazuhisa, Bautz, Mark, Inoue, Hajime, Kelley, Richard L., Koyama, Katsuji, Kunieda, Hideyo, ...
Reiprich, Thomas H., Hudson, Daniel S., Nenestyan, Oxana-Elena, Sato, Kosuke, Ishisaki, Yoshitaka, Hoshino, Akio, ...
Evidence for solar-wind charge-exchange X-ray emission from the Earth's magnetosheath (2007)
Fujimoto, Ryuichi, Mitsuda, Kazuhisa, McCammon, Dan, Takei, Yoh, Bauer, Michael, Ishisaki, Yoshitaka, ...
On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite (2007)
Maeda, Yoshitomo, Ebara, Masatoshi, Fujimoto, Ryuichi, Hayashi, Takayuki, Inoue, Hirohiko, Ishisaki, Yoshitaka, ...
Evidence for Solar-Wind Charge-Exchange X-Ray Emission from the Earth's Magnetosheath (2006)
Fujimoto, Ryuichi, Mitsuda, Kazuhisa, McCammon, Dan, Takei, Yoh, Bauer, Michael, Ishisaki, Yoshitaka, ...
We report an apparent detection of the C VI 4p to 1s transition line at 459 eV, during a long-term enhancement (LTE) in the Suzaku north ecliptic pole (NEP) observation of 2005 September 2. The...
Chandra and XMM-Newton Observations of a Group of Galaxies HCG 62 (2006)
Morita, Umeyo, Ishisaki, Yoshitaka, Yamasaki, Noriko Y., Ota, Naomi, Kawano, Naomi, Fukazawa, Yasushi, ...
We present results from Chandra and XMM-Newton observations of the bright group of galaxies HCG 62. There are two cavities at about 30'' northeast and 20'' southwest of the central galaxy in the...
X-ray Spectral Study of the Photoionized Stellar Wind in Vela~X-1 (2006)
Watanabe, Shin, Sako, Masao, Ishida, Manabu, Ishisaki, Yoshitaka, Kahn, Steven M., Kohmura, Takayoshi, ...
We present results from quantitative modeling and spectral analysis of the high mass X-ray binary Vela X-1 obtained with the Chandra HETGS. The spectra exhibit emission lines from H-like and He-like...
EURECA: a european-japanese micro-calorimeter array (2006)
Anquita, Jose V., Barcons, Xavier, Bastia, Paolo, Beyer, Jörn, Briones, Fernando, ...
Proc. SPIE Vol. 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray; Martin J. Turner, Günther Hasinger; Eds. SPIE Astronomical Telescopes and Instrumentation 2006. Orlando,...
Searching for cosmic missing baryons with DIOS -- Diffuse Intergalactic Oxygen Surveyor -- (2004)
Suto, Yasushi, Yoshikawa, Kohji, Yamasaki, Noriko Y., Mitsuda, Kazuhisa, Fujimoto, Ryuichi, Furusho, Tae, ...
Approximately 30 to 50 percent of the total baryons in the present universe is supposed to take a form of warm/hot intergalactic medium (WHIM) whose X-ray continuum emission is very weak. In order to...
Watanabe, Shin, Sako, Masao, Ishida, Manabu, Ishisaki, Yoshitaka, Kahn, Steve M., Kohmura, Takayoshi, ...
We report the detection of a fully-resolved, Compton-scattered emission line in the X-ray spectrum of the massive binary GX 301-2 obtained with the High Energy Transmission Grating Spectrometer...
ASCA observation of Unusually X-ray Hard Radio Quiet QSO Kaz 102 (2003)
Miyaji, Takamitsu, Ishisaki, Yoshitaka, Ueda, Yoshihiro, Ogasaka, Yasushi, Awaki, Hisamitsu, Hayashida, Kiyoshi
We have observed a radio-quiet QSO Kaz 102 (z=0.136) with ASCA as a part of our program of complete spectral characterization of hard X-ray selected AGNs. We found that Kaz 102 shows unusual spectral...
Search for Hot Gas in the Local Group with ASCA (2002)
Osone, Satoko, Makishima, Kazuo, Matsuzaki, Keiichi, Ishisaki, Yoshitaka, Fukazawa, Yasushi
An X-ray study was made to examine whether some part of the soft X-ray background is coming from hot gas in the Local Group. For this purpose, four consecutive pointings were made with ASCA toward a...
Study of the X-Ray Background Spectrum and its Large-Scale Fluctuation with ASCA (2002)
Kushino, Akihiro, Ishisaki, Yoshitaka, Morita, Umeyo, Yamasaki, Noriko Y., Ishida, Manabu, Ohashi, Takaya, ...
We studied the energy spectrum and the large-scale fluctuation of the X-ray background with the ASCA GIS based on the ASCA MSS and LSS observations. A total of 91 fields with Galactic latitude |b|>10...
Ueda, Yoshihiro, Takahashi, Tadayuki, Ishisaki, Yoshitaka, Ohashi, Takaya, Makishima, Kazuo
We present first results from the ASCA Medium Sensitivity Survey (AMSS; or the GIS catalog project). From the serendipitous fields amounting to 106 degE-2, we determined the Log N - Log S relations...
Suto, Yasushi, Makishima, Kazuo, Ishisaki, Yoshitaka, Ogasaka, Yasushi
Since recent X-ray observations have revealed that most clusters of galaxies are surrounded by an X-ray emitting gaseous halo, it is reasonable to expect that the Local Group of galaxies has its own...
Keith C. Gendreau, Richard Mushotzky, Andrew C. Fabian, Tsuneo Kii, Stephen S. Holt, Peter J. Serlemitsos, ...
We present initial results from ASCA on the spectrum of the Cosmic X-ray Background from 0.4 to 10 keV. About 250 ksec of deep survey data has been collected from the performance verification phase...
Keith C. Gendreau, Richard Mushotzky, Andrew C. Fabian, Tsuneo Kii, Stephen S. Holt, Peter J. Serlemitsos, ...
We present initial results from ASCA on the spectrum of the Cosmic X-ray Background from 0.4 to 10 keV. About 250 ksec of deep survey data has been collected from the performance verification phase...
Asca Observations Of The Spectrumof The X-Ray Background (1970)
Keith C. Gendreau, Richard Mushotzky, Andrew C. Fabian, Tsuneo Kii, Stephen S. Holt, Peter J. Serlemitsos, ...
We present initial results from ASCA on the spectrum of the Cosmic X-ray Background from 0.4 to 10 keV. About 250 ksec of deep survey data has been collected from the performance verification phase...