H
Hiroaki Murakami
Researcher at University of Tokyo
Publications - 20
Citations - 322
Hiroaki Murakami is an academic researcher from University of Tokyo. The author has contributed to research in topics: Magnetar & Supernova remnant. The author has an hindex of 9, co-authored 20 publications receiving 280 citations.
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Journal ArticleDOI
Magnetar Broadband X-Ray Spectra Correlated with Magnetic Fields: Suzaku Archive of SGRs and AXPs Combined with NuSTAR, Swift, and RXTE
Teruaki Enoto,Shinpei Shibata,Takao Kitaguchi,Yudai Suwa,Takahiko Uchide,Hiroyuki Nishioka,Shota Kisaka,Toshio Nakano,Hiroaki Murakami,Kazuo Makishima +9 more
TL;DR: In this article, the 1-70 keV persistent spectra of 15 magnetars, observed with Suzaku from 2006 to 2013, were studied as a complete sample, and the results were compared with their long-term 1-10 keV flux decays monitored with Swift/XRT and RXTE/PCA.
Journal ArticleDOI
A miniaturized resonant-type smooth impact drive mechanism actuator
TL;DR: In this article, a simple plate transducer was designed to realize the resonant-type SIDM principle, which was composed of a hard-type single-layer piezoelectric element.
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Suzaku studies of the supernova remnant CTB 109 hosting the magnetar 1E 2259+586
Toshio Nakano,Hiroaki Murakami,Kazuo Makishima,J. Hiraga,Hideki Uchiyama,Hidehiro Kaneda,Teruaki Enoto +6 more
TL;DR: In this paper, the ages of the magnetar 1E 2259+586 and the associated supernova remnant CTB 109 were studied, and it was shown that magnetars are much younger objects than previously considered, and can dominate new-born neutron stars.
Journal ArticleDOI
The Si/CdTe semiconductor camera of the ASTRO-H Hard X-ray Imager (HXI)
Goro Sato,Kouichi Hagino,Shin Watanabe,Kei Genba,Atsushi Harayama,Hironori Kanematsu,Jun Kataoka,Miho Katsuragawa,Madoka Kawaharada,Shogo B. Kobayashi,Motohide Kokubun,Yoshikatsu Kuroda,Kazuo Makishima,Kazunori Masukawa,Taketo Mimura,Katsuma Miyake,Hiroaki Murakami,Toshio Nakano,Kazuhiro Nakazawa,Hirofumi Noda,Hirokazu Odaka,M. Onishi,Shinya Saito,Rie Sato,Tamotsu Sato,Hiroyasu Tajima,Hiromitsu Takahashi,Tadayuki Takahashi,Shin'ichiro Takeda,Takayuki Yuasa +29 more
TL;DR: In this paper, the authors present the final design of the HXI camera and report on the development of the flight model, including the sensor trays, peripheral circuits, power connections, and readout schemes.
Journal ArticleDOI
Suzaku Studies of the Supernova Remnant CTB~109 Hosting the Magnetar 1E~2259+586
TL;DR: In this paper, the ages of the magnetar 1E 2259+586 and the associated supernova remnant CTB~109 were studied and it was shown that magnetars are much younger objects than previously considered and can dominate new-born neutron stars.