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Property of LCP-GEM in Pure Dimethyl Ether at Low Pressure
Y. Takeuchi, T. Tamagawa, T. Kitaguchi +9
We present a systematic investigation of the gain properties of a gas electron multiplier (GEM) foil in pure dimethyl ether (DME) at low pressures. The GEM is made from copper- cla…
Suzaku View of the Neutron Star in the Dipping Source 4U 182237
Makoto Sasano, Kazuo Makishima, Soki Sakurai +2
The dipping X-ray source 4U 182237 was observed by Suzaku on 2006 Octrober 20 for a net exposure of 37 ks. The source was detected with the XIS at a 1-10 keV flux of 5.5$\times1…
Hardening and termination of long-duration gamma rays detected prior to lightning
H. Tsuchiya, T. Enoto, K. Iwata +10
We report the first observation of 330 MeV prolonged gamma-ray emission that was abruptly terminated by lightning. The gamma-ray detection was made during winter thunderstorms o…
Spectral Variation of the Hard X-ray Emission from the Crab Nebula with the Suzaku Hard X-ray Detector
Tomomi Kouzu, Makoto S. Tashiro, Yukikatsu Terada +6
The Crab Nebula is one of the brightest and most stable sources in the X-ray sky. Year-scale flux variation from the object was recently revealed in the hard X-ray band by four sat…
A double-peaked outburst of A 0535+26 observed with INTEGRAL, RXTE, and Suzaku
I. Caballero, K. Pottschmidt, D. M. Marcu +18
The Be/X-ray binary A 0535+26 showed a normal (type I) outburst in August 2009. It is the fourth in a series of normal outbursts associated with the periastron, but is unusual by p…