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Mapping Observation Project of High-Energy Phenomena during Winter Thunderstorms in Japan
Yuuki Wada, Teruaki Enoto, Yoshihiro Furuta +7
The Gamma-Ray Observation of Winter Thunderclouds (GROWTH) collaboration has been performing observation campaigns of high-energy radiation in coastal areas of Japan Sea. Winter th…
A NuSTAR study of the 55 ks hard X-ray pulse-phase modulation in the magnetar 4U 0142+61
Kazuo Makishima, Hiroaki Murakami, Teruaki Enoto +1
Archival NuSTAR data of the magnetar 4U0142+61, acquired in 2014 March for a total time span of 258 ks, were analyzed. This is to reconfirm the 55 ks modulation in the hard X-ray p…
Detection of polarized gamma-ray emission from the Crab nebula with Hitomi Soft Gamma-ray Detector
Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu +191
We present the results from the Hitomi Soft Gamma-ray Detector (SGD) observation of the Crab nebula. The main part of SGD is a Compton camera, which in addition to being a spectrom…
The FORCE mission : Science aim and instrument parameter for broadband X-ray imaging spectroscopy with good angular resolution
Kazuhiro Nakazawa, Koji Mori, Takeshi G. Tsuru +10
FORCE is a 1.2 tonnes small mission dedicated for wide-band fine-imaging x-ray observation. It covers from 1 to 80 keV with a good angular resolution of half-power-diameter.…
CAMELOT: design and performance verification of the detector concept and localization capability
Masanori Ohno, Norbert Werner, András Pál +16
A fleet of nanosatellites using precise timing synchronization provided by the Global Positioning System is a new concept for monitoring the gamma-ray sky that can achieve both all…
CAMELOT - Concept study and early results for onboard data processing and GPS-based timestamping
András Pál, László Mészáros, Norbert Tarcai +17
Due to recent advances in nanosatellite technology, it is now feasible to integrate scintillators with an effective area of hundreds of square-centimeters on a single three-unit cu…