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CANGAROO-III search for TeV gamma-rays from two clusters of galaxies
https://jaxa.repo.nii.ac.jp/records/5304
https://jaxa.repo.nii.ac.jp/records/530477f19224-acfb-47ea-b748-8d8fc68eed77
名前 / ファイル | ライセンス | アクション |
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64306065.pdf (500.3 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | CANGAROO-III search for TeV gamma-rays from two clusters of galaxies | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | galaxies : clustrs - gamma-rays : observations | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
木内, 隆太
× 木内, 隆太× 森, 正樹× 榎本, 良治× 郡司, 修一× 原, 忠生× Kiuchi, Ryuta× Mori, Masaki× Bicknell, G. V.× Clay, R. W.× Edwards, P. G.× Enomoto, Ryoji× Gunji, Shuichi× Hara, S.× Hara, Tadao× Hattori, T. |
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著者所属 | ||||||
東京大学宇宙線研究所 | ||||||
著者所属 | ||||||
東京大学宇宙線研究所 | ||||||
著者所属 | ||||||
東京大学宇宙線研究所 | ||||||
著者所属 | ||||||
山形大学理学部物理学科 | ||||||
著者所属 | ||||||
茨城県立医療大学 | ||||||
著者所属 | ||||||
山梨学院大学経営情報学部 | ||||||
著者所属 | ||||||
東海大学理学部物理学科 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute for Cosmic Ray Research, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Institute for Cosmic Ray Research, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Research School of Astronomy and Astrophysics, Australian National University | ||||||
著者所属(英) | ||||||
en | ||||||
School of Chemistry and Physics, University of Adelaide | ||||||
著者所属(英) | ||||||
en | ||||||
Narrabri Observatory of the Australia Telescope National Facility, Commonwealth Scientific and Industrial Research Organisation (CSIRO) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute for Cosmic Ray Research, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Physics, Yamagata University | ||||||
著者所属(英) | ||||||
en | ||||||
Ibaraki Prefectural University of Health Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Faculty of Management Information, Yamanashi Gakuin University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Physics, Tokai University | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop 巻 JAXA-SP-08-014E, p. 338-343, 発行日 2009-02-27 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop (RIKEN, 10-12 June 2008) | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As accretion and merger shocks in clusters of galaxies may accelerate particles to high energies, clusters are candidate sites for the origin of ultra-high-energy (UHE) cosmic-rays. Recently, a prediction was presented for gamma-ray emission from a cluster of galaxies at a detectable level with modern imaging atmospheric Cherenkov telescopes. The gamma-ray emission was produced via inverse Compton upscattering of cosmic microwave background (CMB) photons by electron-positron pairs generated by collisions of UHE cosmic rays in the cluster. We have observed two clusters of galaxies, Abell 3667 and Abell 4038, searching for very-high-energy gamma-ray emission with the CANGAROO-III atmospheric Cherenkov telescope system in 2006. The analysis showed no significant excess around these clusters, yielding upper limits on the gamma-ray emission. By comparing the upper limit for the north-west radio relic region of Abell 3667 with the model prediction, we can derive a lower limit of the magnetic field of the region of ca. 0.1 microG. This shows the potential of gamma-ray observations in studies of the cluster environment. We also discuss the upper limit from cluster center regions with a model of gamma-ray emission from neutral pion produced in hadronic collisions of cosmic-ray protons with the intra-cluster medium (ICM). The derived upper limit of the cosmic-ray energy density within this framework was one order higher than that of our Galaxy. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 著者人数: 50人 | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0064306065 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-08-014E |