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The origin of an extended X-ray emission apparently associated with the globular cluster 47 Tucanae
Takayuki Yuasa, Kazuhiro Nakazawa, Kazuo Makishima
Using the Suzaku X-ray Imaging Spectrometer, we performed a 130 ks observation of an extended X-ray emission, which was shown by ROSAT and Chandra observations to apparently associ…
Origin of Thermal and Non-Thermal Hard X-ray Emission from the Galactic Center
Vladimir Dogiel, Dmitrii Chernyshov, Takayuki Yuasa +10
We analyse new results of Chandra and Suzaku which found a flux of hard X-ray emission from the compact region around Sgr A (r ~ 100 pc). We suppose that this emission is ge…
Particle Propagation in the Galactic Center and Spatial Distribution of Non-Thermal X-rays
Vladimir Dogiel, Dmitrii Chernyshov, Takayuki Yuasa +9
We showed that if the non-thermal emission from the Galactic center in the range 14-40 keV is due to inverse bremsstrahlung emission of subrelativistic protons, their interactions…
Observation of an energetic radiation burst from mountain-top thunderclouds
H. Tsuchiya, T. Enoto, T. Torii +9
During thunderstorms on 2008 September 20, a simultaneous detection of gamma rays and electrons was made at a mountain observatory in Japan located 2770 m above sea level. Both emi…
Modeling and Reproducibility of Suzaku HXD PIN/GSO Background
Yasushi Fukazawa, Tsunefumi Mizuno, Shin Watanabe +26
Suzaku Hard X-ray Detector (HXD) achieved the lowest background level than any other previously or currently operational missions sensitive in the energy range of 10--600 keV, by u…