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- The University of TokyoJP492 papers
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17 papers · 2 filters
Suzaku Observation of AXP 1E 1841-045 in SNR Kes 73
M. Morii, S. Kitamoto, N. Shibazaki +7
Anomalous X-ray pulsars (AXPs) are thought to be magnetars, which are neutron stars with ultra strong magnetic field of -- G. Their energy spectra below 10…
Suzaku X-Ray Spectroscopy of a Peculiar Hot Star in the Galactic Center Region
Yoshiaki Hyodo, Masahiro Tsujimoto, Katsuji Koyama +5
We present the results of a Suzaku study of a bright point-like source in the 6.7 keV intensity map of the Galactic center region. We detected an intense FeXXV 6.7 keV line with an…
Suzaku Observation of the Anomalous X-ray Pulsar CXOU J164710.2--455216
Sachindra Naik, Tadayasu Dotani, Nobuyuki Kawai +11
Suzaku TOO observation of the anomalous X-ray pulsar CXOU J164710.2-455216 was performed on 2006 September 23--24 for a net exposure of 38.8 ks. During the observation, the XIS was…
Instability of Population III Black Hole Accretion Disks
Ken Ohsuga, Hajime Susa, Yosuke Uchiyama
We investigate the stability of black hole accretion disks in a primordial environment (POP III disks for short), by solving the vertical structure of optically thick disks, includ…
Why Is Supercritical Disk Accretion Feasible?
Ken Ohsuga, Shin Mineshige
Although the occurrence of steady supercritical disk accretion onto a black hole has been speculated about since the 1970s, it has not been accurately verified so far. For the firs…
Broad band X-ray spectroscopy of A0535+262 with SUZAKU
S. Naik, T. Dotani, Y. Terada +9
The transient X-ray binary pulsar A0535+262 was observed with Suzaku on 2005 September 14 when the source was in the declining phase of the August-September minor outburst. The ~10…