A
Akitoshi Oshima
Researcher at Osaka City University
Publications - 82
Citations - 2792
Akitoshi Oshima is an academic researcher from Osaka City University. The author has contributed to research in topics: Cosmic ray & Telescope. The author has an hindex of 25, co-authored 71 publications receiving 2459 citations.
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Journal ArticleDOI
Indications of intermediate-scale anisotropy of cosmic rays with energy greater than 57 EeV in the northern sky measured with the surface detector of the Telescope Array experiment
Rasha Abbasi,M. Abe,Tareq Abu-Zayyad,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,M. J. Chae,Byung Gu Cheon,Jyunsei Chiba,Michiyuki Chikawa,W. R. Cho,Takahiro Fujii,Masaki Fukushima,T. Goto,William Hanlon,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Honda,Daisuke Ikeda,N. Inoue,Takaaki Ishii,R. Ishimori,Hidemi Ito,Dmitri Ivanov,C. C. H. Jui,Kenichi Kadota,Fumio Kakimoto,Oleg Kalashev,K. Kasahara,H. Kawai,S. Kawakami,Shingo Kawana,Kazumasa Kawata,Eiji Kido,Hang Bae Kim,J. H. Kim,S. Kitamura,Yasunori Kitamura,Vladim Kuzmin,Y. J. Kwon,J. Lan,S. I. Lim,J. P. Lundquist,Kazuhiro Machida,K. Martens,Tomohiro Matsuda,T. Matsuyama,John N. Matthews,Mayuko Minamino,Keijiro Mukai,Isaac Myers,K. Nagasawa,Shigehiro Nagataki,Toru Nakamura,Toshiyuki Nonaka,A. Nozato,Shoichi Ogio,J. Ogura,M. Ohnishi,Hideyuki Ohoka,K. Oki,T. Okuda,Masaomi Ono,Akitoshi Oshima,S. Ozawa,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,Grigory Rubtsov,Dongsu Ryu,Hiroyuki Sagawa,Nobuyuki Sakurai,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,T.-A. Shibata,Hideaki Shimodaira,Bokkyun Shin,J. D. Smith,Pierre Sokolsky,R. W. Springer,B. T. Stokes,S. R. Stratton,S. R. Stratton,Tom Stroman,T. Suzawa,Mai Takamura,M. Takeda,Ryuji Takeishi,Akimichi Taketa,Masato Takita,Yuichiro Tameda,Hideki Tanaka,Kenichi Tanaka,M. Tanaka,S. B. Thomas,Gordon Thomson,Peter Tinyakov,Igor Tkachev,H. Tokuno,Takayuki Tomida,Sergey Troitsky,Yoshiki Tsunesada,K. Tsutsumi,Y. Uchihori,S. Udo,Federico R. Urban,G. Vasiloff,Tiffany Wong,R. Yamane,Hiroshi Yamaoka,K. Yamazaki,J. Yang,Kenta Yashiro,Y. Yoneda,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +125 more
TL;DR: In this paper, the authors search for intermediate-scale anisotropy in the arrival directions of ultra-high-energy cosmic rays with energies above 57 EeV in the northern sky using data collected over a 5-year period by the surface detector of the Telescope Array experiment.
Journal ArticleDOI
The surface detector array of the Telescope Array experiment
Tareq Abu-Zayyad,R. Aida,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,B. G. Cheon,Jyunsei Chiba,Michiyuki Chikawa,E. J. Cho,W. R. Cho,H. Fujii,T. Fujii,T. Fukuda,Masaki Fukushima,Dmitry Gorbunov,William Hanlon,K. Hayashi,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Hiyama,K. Honda,T. Iguchi,Daisuke Ikeda,K. Ikuta,N. Inoue,Takaaki Ishii,R. Ishimori,Dmitri Ivanov,Dmitri Ivanov,S. Iwamoto,C. C. H. Jui,Kenichi Kadota,Fumio Kakimoto,Oleg Kalashev,T. Kanbe,Katsuaki Kasahara,H. Kawai,S. Kawakami,Shingo Kawana,Eiji Kido,HangBae Kim,Hyun-Il Kim,J. H. Kim,K. Kitamoto,K. Kobayashi,Yoji Kobayashi,Y. Kondo,K. Kuramoto,Vladim Kuzmin,Y. J. Kwon,S. I. Lim,S. Machida,K. Martens,J. Martineau,Tomohiro Matsuda,T. Matsuura,T. Matsuyama,John N. Matthews,Isaac Myers,Mayuko Minamino,K. Miyata,H. Miyauchi,Y. Murano,Toru Nakamura,S. W. Nam,Toshiyuki Nonaka,Shoichi Ogio,M. Ohnishi,Hideyuki Ohoka,K. Oki,D. Oku,Takeshi Okuda,Akitoshi Oshima,Shunsuke Ozawa,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,S. Y. Roh,Grigory Rubtsov,Dongsu Ryu,Hiroyuki Sagawa,Nobuyuki Sakurai,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,T.-A. Shibata,Hideaki Shimodaira,Bokkyun Shin,J. I. Shin,T. Shirahama,J. D. Smith,Pierre Sokolsky,T. J. Sonley,R. W. Springer,B. T. Stokes,S. R. Stratton,S. R. Stratton,Tom Stroman,S. Suzuki,Yukio Takahashi,M. Takeda,Akimichi Taketa,Masato Takita,Yuichiro Tameda,Hideki Tanaka,Kenichi Tanaka,M. Tanaka,S. B. Thomas,Gordon Thomson,Peter Tinyakov,Igor Tkachev,H. Tokuno,Taka Tomida,Sergey Troitsky,Yoshiki Tsunesada,K. Tsutsumi,Y. Tsuyuguchi,Y. Uchihori,S. Udo,H. Ukai,G. Vasiloff,Y. Wada,Tiffany Wong,M. Wood,Y. Yamakawa,Hiroshi Yamaoka,K. Yamazaki,J. Yang,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +138 more
TL;DR: The Telescope Array (TA) experiment as discussed by the authors was designed for the observation of extensive air showers from extremely high energy cosmic rays, and it has a surface detector array surrounded by three fluorescence detectors to enable simultaneous detection of shower particles at ground level and fluorescence photons along the shower track.
Journal ArticleDOI
Indications of Intermediate-Scale Anisotropy of Cosmic Rays with Energy Greater Than 57 EeV in the Northern Sky Measured with the Surface Detector of the Telescope Array Experiment
Rasha Abbasi,M. Abe,Tareq Abu-Zayyad,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,M. J. Chae,B. G. Cheon,Jyunsei Chiba,Michiyuki Chikawa,W. R. Cho,Toshitsugu Fujii,Masaki Fukushima,T. Goto,William Hanlon,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Honda,Daisuke Ikeda,N. Inoue,Takaaki Ishii,R. Ishimori,Hidemi Ito,Dmitri Ivanov,C. C. H. Jui,K. Kadota,Fumio Kakimoto,Oleg Kalashev,K. Kasahara,H. Kawai,S. Kawakami,Shingo Kawana,K. Kawata,Eiji Kido,Hongsu Kim,J. H. Kim,S. Kitamura,Yasunori Kitamura,Vladim Kuzmin,Y. J. Kwon,J. Lan,S. I. Lim,J. P. Lundquist,Kazuhiro Machida,K. Martens,Tomohiro Matsuda,T. Matsuyama,John N. Matthews,Mayuko Minamino,Keijiro Mukai,Isaac Myers,K. Nagasawa,Shigehiro Nagataki,Toru Nakamura,Toshiyuki Nonaka,A. Nozato,Shoichi Ogio,J. Ogura,M. Ohnishi,Hideyuki Ohoka,K. Oki,Takeshi Okuda,Masaomi Ono,Akitoshi Oshima,S. Ozawa,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,Grigory Rubtsov,Dongsu Ryu,Hiroyuki Sagawa,Nobuyuki Sakurai,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,T.-A. Shibata,Hideaki Shimodaira,Bokkyun Shin,J. D. Smith,Pierre Sokolsky,R. W. Springer,B. T. Stokes,S. R. Stratton,Tom Stroman,T. Suzawa,Mai Takamura,M. Takeda,Ryuji Takeishi,Akimichi Taketa,M. Takita,Yuichiro Tameda,Hideki Tanaka,Kenichi Tanaka,M. Tanaka,S. B. Thomas,Gordon Thomson,Peter Tinyakov,Igor Tkachev,Hisono Tokuno,Takayuki Tomida,Sergey Troitsky,Y. Tsunesada,K. Tsutsumi,Y. Uchihori,Shigeharu Udo,Federico R. Urban,G. Vasiloff,Tiffany Wong,R. Yamane,Hiroshi Yamaoka,K. Yamazaki,J. Yang,Kenta Yashiro,Y. Yoneda,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +124 more
TL;DR: In this paper, the authors search for intermediate-scale anisotropy in the arrival directions of ultra-high-energy cosmic rays with energies above 57~EeV in the northern sky using data collected over a 5 year period by the surface detector of the Telescope Array experiment.
Journal ArticleDOI
New air fluorescence detectors employed in the Telescope Array experiment
H. Tokuno,Yuichiro Tameda,M. Takeda,Kenichi Kadota,Daisuke Ikeda,Michiyuki Chikawa,T. Fujii,Masaki Fukushima,K. Honda,N. Inoue,Fumio Kakimoto,Shingo Kawana,Eiji Kido,John N. Matthews,Toshiyuki Nonaka,Shoichi Ogio,S. Okuda,Shunsuke Ozawa,Hiroyuki Sagawa,Nobuyuki Sakurai,T.-A. Shibata,Akimichi Taketa,S. B. Thomas,Takayuki Tomida,Yoshiki Tsunesada,S. Udo,Tareq Abu-Zayyad,R. Aida,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,B. G. Cheon,Jyunsei Chiba,E. J. Cho,W. R. Cho,H. Fujii,T. Fukuda,Dmitry Gorbunov,William Hanlon,K. Hayashi,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Hiyama,T. Iguchi,K. Ikuta,Takaaki Ishii,R. Ishimori,Dmitri Ivanov,Dmitri Ivanov,S. Iwamoto,C. C. H. Jui,Oleg Kalashev,T. Kanbe,K. Kasahara,H. Kawai,S. Kawakami,HangBae Kim,Hyun-Il Kim,J. H. Kim,K. Kitamoto,K. Kobayashi,Yoji Kobayashi,Y. Kondo,Kiyoshi Kuramoto,Vladim Kuzmin,Y. J. Kwon,S. I. Lim,S. Machida,K. Martens,J. Martineau,Tomohiro Matsuda,T. Matsuura,T. Matsuyama,Isaac Myers,Mayuko Minamino,K. Miyata,H. Miyauchi,Y. Murano,Toru Nakamura,S. W. Nam,M. Ohnishi,Hideyuki Ohoka,K. Oki,D. Oku,Akitoshi Oshima,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,S. Y. Roh,Grigory Rubtsov,Dongsu Ryu,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,Hideaki Shimodaira,Bokkyun Shin,J. I. Shin,T. Shirahama,J. D. Smith,Pierre Sokolsky,T. J. Sonley,R. W. Springer,B. T. Stokes,S. R. Stratton,S. R. Stratton,Tom Stroman,S. Suzuki,Yukio Takahashi,Masato Takita,Hideki Tanaka,Kiyoshi Tanaka,Masaaki Tanaka,Gordon Thomson,Peter Tinyakov,Igor Tkachev,Sergey Troitsky,K. Tsutsumi,Y. Tsuyuguchi,Y. Uchihori,H. Ukai,G. Vasiloff,Y. Wada,Tiffany Wong,M. Wood,Y. Yamakawa,Hiroshi Yamaoka,K. Yamazaki,J. Yang,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +138 more
TL;DR: In this article, the characteristics and installation of the new FDs and the performances of the FD components are reported and the results of the monitored mirror reflectance during the observation time are also described.
Journal ArticleDOI
Study of Ultra-High Energy Cosmic Ray composition using Telescope Array’s Middle Drum detector and surface array in hybrid mode
Rasha Abbasi,M. Abe,Tareq Abu-Zayyad,M. Allen,Robert M. Anderson,R. Azuma,Elliott Barcikowski,John Belz,Douglas Bergman,Samuel Blake,Robert Cady,M. J. Chae,B. G. Cheon,Jyunsei Chiba,Michiyuki Chikawa,W. R. Cho,Takahiro Fujii,Masaki Fukushima,T. Goto,William Hanlon,Y. Hayashi,Naoaki Hayashida,K. Hibino,K. Honda,Daisuke Ikeda,N. Inoue,Takaaki Ishii,R. Ishimori,Hidemi Ito,Dmitri Ivanov,C. C. H. Jui,Kenichi Kadota,F. Kakimoto,Oleg Kalashev,K. Kasahara,H. Kawai,S. Kawakami,Shingo Kawana,Kazumasa Kawata,Eiji Kido,Hongsu Kim,J. H. Kim,S. Kitamura,Yasunori Kitamura,Vladim Kuzmin,Y. J. Kwon,J. Lan,S. I. Lim,J. P. Lundquist,Kazuhiro Machida,K. Martens,Tomohiro Matsuda,T. Matsuyama,John N. Matthews,Mayuko Minamino,Y. Mukai,Isaac Myers,K. Nagasawa,Shigehiro Nagataki,Toru Nakamura,Toshiyuki Nonaka,A. Nozato,Shoichi Ogio,J. Ogura,M. Ohnishi,Hideyuki Ohoka,K. Oki,T. Okuda,Masaomi Ono,Akitoshi Oshima,Shunsuke Ozawa,Inkyu Park,Maxim Pshirkov,D. C. Rodriguez,Grigory Rubtsov,Dongsu Ryu,Hiroyuki Sagawa,Nobuyuki Sakurai,A. L. Sampson,L. M. Scott,Priti Shah,Fumiya Shibata,T.-A. Shibata,Hideaki Shimodaira,Bokkyun Shin,Heungsu Shin,J. D. Smith,Pierre Sokolsky,R. W. Springer,B. T. Stokes,S. R. Stratton,S. R. Stratton,Tom Stroman,T. Suzawa,Mai Takamura,M. Takeda,Ryuji Takeishi,Akimichi Taketa,Masato Takita,Yuichiro Tameda,Hideki Tanaka,Kiyoshi Tanaka,Masaaki Tanaka,S. B. Thomas,Gordon Thomson,Peter Tinyakov,Igor Tkachev,H. Tokuno,Takayuki Tomida,Sergey Troitsky,Yoshiki Tsunesada,K. Tsutsumi,Y. Uchihori,S. Udo,Federico R. Urban,G. Vasiloff,Tiffany Wong,R. Yamane,Hiroshi Yamaoka,K. Yamazaki,J. Yang,Kenta Yashiro,Y. Yoneda,S. Yoshida,H. Yoshii,R. Zollinger,Zach Zundel +126 more
TL;DR: In this paper, the authors compare the results of the HiRes and PAO UHECR measurements to the results obtained by the QGSJetII-03 and QGS jet-01c models.