Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Noriaki Shibazaki"'
Autor:
Noriaki Shibazaki, Kazuhiro Nakazawa, Motohide Kokubun, Kazuo Makishima, Teruaki Enoto, Jun'ichi Kotoku, Madoka Kawaharada
Publikováno v:
Publications of the Astronomical Society of Japan. 63:387-396
The anomalous X-ray pulsar 4U 0142+61 was observed with Suzaku on 2007 August 15 for a net exposure of -100 ks, and was detected in a 0.4 to ~70 keV energy band. The intrinsic pulse period was determined as 8.68878 \pm 0.00005 s, in agreement with an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6150f7e8ad55b0c5e0a2d095d1dca50
https://doi.org/10.1093/pasj/63.2.387
https://doi.org/10.1093/pasj/63.2.387
Autor:
Hiroshi Terada, Noriaki Shibazaki, Shunji Kitamoto, Nobuyuki Kawai, Mikio Morii, Naoto Kobayashi, Yasuyuki T. Tanaka
Publikováno v:
Publications of the Astronomical Society of Japan. 61:51-56
We have searched for pulsation of the anomalous X-ray pulsar (AXP) 4U 0142+61 in the K' band ($\lambda_{\rm eff} = 2.11$ $\mu$m) using the fast-readout mode of IRCS at the Subaru 8.2-m telescope. We found no significant signal at the pulse frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f1b2fac8ac39a9d45347b44a38c0558
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100612757
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100612757
Autor:
Alexander Y. Potekhin, A. D. Kaminker, D. G. Yakovlev, Noriaki Shibazaki, Oleg Y. Gnedin, P. S. Shternin
Publikováno v:
Astrophysics and Space Science. 308:423-430
We model thermal evolution of magnetars with a phenomenological heat source in a spherical internal layer and compare the results with observations of persistent thermal radiation from magnetars. We show that the heat source should be located in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29fed8c03c886a177f3c104568da45f0
https://doi.org/10.1007/s10509-007-9358-2
https://doi.org/10.1007/s10509-007-9358-2
Autor:
D. G. Yakovlev, Noriaki Shibazaki, A. D. Kaminker, Peter Shternin, Alexander Y. Potekhin, Oleg Y. Gnedin
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 371:477-483
We study thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in a spherical internal layer. We explore the location of this layer as well as the heating rate that could explain high observable the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa2eebf1f08ba02bfce31dae49e36d47
https://doi.org/10.1111/j.1365-2966.2006.10680.x
https://doi.org/10.1111/j.1365-2966.2006.10680.x
Autor:
Vladimir V. Sokolov, Yu. A. Shibanov, Noriaki Shibazaki, Yuji Urata, S. Zharikov, Nobuyuki Kawai, Shinpei Shibata, V. N. Komarova, Alexey B. Koptsevich
Publikováno v:
Astronomy and Astrophysics. 448:313-326
We carried out a deep subarcsecond BRI imaging of the two middle-aged pulsars to establish their properties in the optical range. Both pulsars are detected at >10 sigma level. Geminga is for the first time reliably detected in the I band with a magni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9b9e85ba32f935fa3481f96ab832b89
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100551681
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100551681
Publikováno v:
The Astrophysical Journal. 622:544-548
We report a glitch-like pulse frequency deviation from the simple spin-down law in an anomalous X-ray pulsar (AXP) 4U 0142+61 detected by ASCA observations. We also found a significant pulse profile change after the putative glitch. The glitch parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::861f692dac3f04a7ef9419d55346539d
https://doi.org/10.1086/427865
https://doi.org/10.1086/427865
Publikováno v:
Advances in Space Research. 33:601-604
PSR B1259-63 is a radio pulsar orbiting a Be star in a highly eccentric orbit. Soft and hard X-rays are observed from this unique system. We apply the shock powered emission model to this system. The collision of the pulsar and Be star winds forms a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::715f71ea7a4a9d69cbbc31de1b274bf9
https://doi.org/10.1016/j.asr.2003.07.032
https://doi.org/10.1016/j.asr.2003.07.032
Publikováno v:
Publications of the Astronomical Society of Japan. 55:473-481
PSR 1259-63 is a radio pulsar orbiting a Be star in a highly eccentric orbit. Soft and hard X-rays are observed from this binary system. We apply the shock powered emission model to this system. The collision of the pulsar and Be star winds forms a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee064e39ca3065556011743e7d7150f1
https://doi.org/10.1093/pasj/55.2.473
https://doi.org/10.1093/pasj/55.2.473
Autor:
Mikio Morii, Noriaki Shibazaki, Shoma Ikeda, Mai Shirahara, Takayoshi Kohmura, Kenta Kaneko, Katsuaki Asano
Publikováno v:
Proceedings of the International Astronomical Union. 8:422-424
We observed two magnetars, 4U 0142+61 and 1E2259+568, with the Japanese infrared satellite AKARI to search for the time variability at wavelengths between 2-4 μm. We significantly detected 4U0142+61 in the 4μm band, and determined flux upper limits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efbb3c23a5a51939598615564d419f7b
https://doi.org/10.1017/s1743921312024362
https://doi.org/10.1017/s1743921312024362
Autor:
Shinpei Shibata, V. V. Sokolov, Nobuyuki Kawai, V. N. Komarova, S. Zharikov, Noriaki Shibazaki, A. B. Koptsevich, Yu. A. Shibanov, Y. Urata
Publikováno v:
Astronomy & Astrophysics. 394:633-639
We report the B band optical observations of an old (17.5 Myr) radiopulsar PSR B0950+08 obtained with the Suprime-Cam at the Subaru telescope. We detected a faint object, B=27.07(16). Within our astrometrical accuracy it coincides with the radio posi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d29be29b06f2049f1a14c9ceea474339
https://doi.org/10.1051/0004-6361:20021155
https://doi.org/10.1051/0004-6361:20021155