Zobrazeno 1 - 10
of 36
pro vyhledávání: '"CHIKAWA, Michiyuki"'
Autor:
Tomida, Takayuki, Tsuyuguchi, Yusuke, Arai, Takahito, Benno, Takuya, Chikawa, Michiyuki, Doura, Koji, Fukushima, Masaki, Hiyama, Kazunori, Honda, Ken, Ikeda, Daisuke, Matthews, John N., Nakamura, Toru, Oku, Daisuke, Sagawa, Hiroyuki, Tokuno, Hisao, Tameda, Yuichiro, Thomson, Gordon B., Tsunesada, Yoshiki, Udo, Shigeharu, Ukai, Hisashi
Publikováno v:
Nuclear Inst, and Methods in Physics Research, A 654 (2011) pp.653-660
An atmospheric transparency was measured using a LIDAR with a pulsed UV laser (355nm) at the observation site of Telescope Array in Utah, USA. The measurement at night for two years in $2007\sim 2009$ revealed that the extinction coefficient by aeros
Externí odkaz:
http://arxiv.org/abs/1109.1196
Autor:
Navarro, Ramón, Geyl, Roland, Inada, Tomohiro, Fukami, Satoshi, Noda, Koji, Chikawa, Michiyuki, Kagaya, Mika, Katagiri, Hideaki, Mazin, Daniel, Obara, Koutaro, Okumura, Akira, Saito, Takayuki, Teshima, Masahiro, Yamamoto, Tokonatsu, Yoshida, Tatsuo, Vovk, Ievgen
Publikováno v:
Proceedings of SPIE; December 2020, Vol. 11451 Issue: 1 p114510G-114510G-10, 11336501p
Autor:
Teshima, Masahiro, Takeda, Masahiro, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Mase, Keiichi, Mizobuchi, Tomoko, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakaki, Naoto, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shimizu, Hirohiko, Shinozaki, Kenji, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 28:437-440
Study of the arrival direction distribution plays a key role in finding sources of the Extremely High Energy Cosmic Rays (EHECR). Greisen-Zatsepin-Kuz'min (GZK) mechanism limits the propagation of EHE cosmic rays significantly and only nearby sources
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::8259b4b6f0ce23fdfc304d51099a6464
https://repo.qst.go.jp/records/53276
https://repo.qst.go.jp/records/53276
Publikováno v:
Proceedings of International Cosmic Ray Conference. :1033-1036
In addition to the existence of extremely high energy cosmic rays (EHECRs) above GZK cutoff, the results of AGASA shows the clustering of EHECRs above 1019.6 eV. Confirming such clusters and identifying the corresponding astronomical object is crucia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::069b2f71c3ab816332ea3bca01bc0a7a
https://repo.qst.go.jp/records/53278
https://repo.qst.go.jp/records/53278
Autor:
Takeda, Masahiro, Sakaki, Naoto, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Mase, Keiichi, Mizobuchi, Tomoko, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shimizu, Hirohiko, Shinozaki, Kenji, Teshima, Masahiro, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 28:381-384
Using data from more than ten-years of observations with the Akeno Giant Air Shower Array (AGASA), we published that the energy spectrum of ultra-high energy cosmic rays extends beyond the GZK cutoff. We have reevaluated the energy determination meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::7433b60022cb869b5d9be7183511fb24
https://repo.qst.go.jp/records/53277
https://repo.qst.go.jp/records/53277
Autor:
Shinozaki, Kenji, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Mase, Keiichi, Mizobuchi, Tomoko, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakaki, Naoto, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shimizu, Hirohiko, Takeda, Masahiro, Teshima, Masahiro, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 28:401-404
We have observed ultra-high energy cosmic rays above the Greisen-Zatsepin-Kuz'min cut-off energy by Akeno Giant Air Shower Array. Their chemical composition is a key discriminator of origin models. In the present work, we estimate the average composi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::f34fd63a7358bcbee6fd14dc5b0f33a7
https://repo.qst.go.jp/records/53279
https://repo.qst.go.jp/records/53279
UPPER LIMIT ON GAMMA-RAY FLUX ABOVE 1019 eV ESTIMATED BY THE AKENO GIANT AIR SHOWER ARRAY EXPERIMENT
Autor:
Shinozaki, Kenji, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Inoue, Naoya, Honda, Ken, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Mahrous, A, Mase, Keiichi, Mizobuchi, Tomoko, Morizane, Yuichirou, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakaki, Naoto, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Takeda, Masahiro, Teshima, Masahiro, Tsushima, Itsurou, Torii, Reiko, Uchihori, Yukio, Vazquez, R, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
The Astrophysical Journal. 57:L117-L120
The origin of the highest energy cosmic rays (−1020 eV) is not well understood. Interesting models called ＾top-down￣ scenarios have been proposed to explain the origin. The g-ray flux in ultra?high-energy cosmic rays is a key parameter for givi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::fdc9ab5421e22216404218fef81855d6
https://repo.qst.go.jp/records/42993
https://repo.qst.go.jp/records/42993
Autor:
Sakaki, Naoto, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Kusano, Erina, Mahrous, A, Mase, Keiichi, Mizobuchi, Tomoko, Morizane, Yuichirou, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shinozaki, Kenji, Takeda, Masahiro, Teshima, Masahiro, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 2001(HE1):329-332
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::71526b46587a929e5df94d91d66f5d9a
https://repo.qst.go.jp/records/53096
https://repo.qst.go.jp/records/53096
Autor:
Yoshida, Shigeru, Sakaki, Naoto, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Mahrous, A, Mase, Keiichi, Mizobuchi, Tomoko, Morizane, Yuichirou, Ohoka, Hideyuki, Osone, Satoko, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shinozaki, Kenji, Takeda, Masahiro, Teshima, Masahiro, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 2001(HE2):1142-1145
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::3ccab49ef8a76ac9131c566be9f1c570
https://repo.qst.go.jp/records/53099
https://repo.qst.go.jp/records/53099
Autor:
Takeda, Masahiro, Chikawa, Michiyuki, Fukushima, Masaki, Hayashida, Naoaki, Honda, Ken, Inoue, Naoya, Kadota, Kenji, Kakimoto, Fumio, Kamata, Kouichi, Kawaguchi, Setsuo, Kawakami, Saburo, Kawasaki, Yoshiya, Kawasumi, Norio, Kusano, Erina, Mahrous, A, Mase, Keiichi, Mizobuchi, Tomoko, Morizane, Yuichirou, Nagano, Motohiko, Ohoka, Hideyuki, Osone, Satoko, Sakaki, Naoto, Sakurai, Nobuyuki, Sasaki, Makoto, Sasano, Masahiko, Shinozaki, Kenji, Teshima, Masahiro, Torii, Reiko, Tsushima, Itsurou, Uchihori, Yukio, Yamamoto, Tokonatsu, Yoshida, Shigeru, Yoshii, Hisashi
Publikováno v:
Proceedings of International Cosmic Ray Conference. 2001(HE1):341-344
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::7318255e581f8e5bde849dd4046f569f
https://repo.qst.go.jp/records/53095
https://repo.qst.go.jp/records/53095