176 citations · 681 across the 11 of their papers we have counts for
11 papers
A Study of Active Shielding Optimized for 1-80 keV Wide-Band X-ray Detector in Space
Yoshihiro Furuta, Yuki Murota, Junko S. Hiraga +3
Active shielding is an effective technique to reduce background signals in hard X-ray detectors and to enable observing darker sources with high sensitivity in space. Usually the m…
Discovery of a 36 ks Phase Modulation in the Hard X-ray Pulses from the Magnetar 1E 1547.05408
Kazuo Makishima, Teruaki Enoto, Hiroaki Murakami +4
The Suzaku data of the highly variable magnetar 1E 1547.05408, obtained during the 2009 January activity, were reanalyzed. The 2.07 s pulsation of the 15--40 keV emission detect…
Probing the Accretion Scheme of the Dipping X-ray Binary 4U 1915-05 with Suzaku
Zhongli Zhang, Kazuo Makishima, Soki Sakurai +2
The dipping low-mass X-ray binary 4U 1915-05 was observed by Suzaku on 2007 November 8 for a net exposure of 39 ksec. It was detected by the XIS with a 0.8-10 keV signal rate of 9.…
Possible Evidence for Free Precession of a Strongly Magnetized Neutron Star in the Magnetar 4U 0142+61
Kazuo Makishima, Teruaki Enoto, Junko S. Hiraga +5
Magnetars are a special type of neutron stars, considered to have extreme dipole magnetic fields reaching ~1e+11 T. The magnetar 4U 0142+61, one of prototypes of this class, was st…
Spectral and Timing Nature of the Symbiotic X-ray Binary 4U 1954+319: The Slowest Rotating Neutron Star in an X-ray Binary System
Teruaki Enoto, Makoto Sasano, Shin'ya Yamada +7
The symbiotic X-ray binary 4U 1954+319 is a rare system hosting a peculiar neutron star (NS) and an M-type optical companion. Its ~5.4h NS spin period is the longest among all know…
Firm Detection of a Cyclotron Resonance Feature with Suzaku in the X-ray Spectrum of GRO J1008-57 during a Giant Outburst in 2012
Takayuki Yamamoto, Tatehiro Mihara, Mutsumi Sugizaki +3
We report on the firm detection of a cyclotron resonance scattering feature (CRSF) in the X-ray spectrum of the Be X-ray binary pulsar, GRO J1008-57, achieved by the Suzaku Hard X-…
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…
Improvements in calibration of GSO scintillators in the Suzaku Hard X-ray Detector
Shin'ya Yamada, Kazuo Makishima, Kazuhiro Nakazawa +27
Improvements of in-orbit calibration of GSO scintillators in the Hard X-ray Detector on board Suzaku are reported. To resolve an apparent change of the energy scale of GSO which ap…
The Anisotropy of Cosmic Ray Arrival Direction around 10^18eV
N. Hayashida, K. Honda, N. Inoue +29
Anisotropy in the arrival directions of cosmic rays around 10^{18}eV is studied using data from the Akeno 20 km^2 array and the Akeno Giant Air Shower Array (AGASA), using a total…
The Anisotropy of Cosmic Ray Arrival Directions around 10eV
AGASA Collaboration, N. Hayashida, K. Honda +26
Anisotropy in the arrival directions of cosmic rays with energies above 10eV is studied using data from the Akeno 20 km array and the Akeno Giant Air Shower Array (AGASA…
Observations of TeV gamma ray flares from Markarian 501 with the Telescope Array Prototype
Telescope Array Collaboration
We will report the observations of TeV gamma ray flares from Markarian 501 using Telescope Array Prototype. The observation were carried out continuously from the end of March to t…