Large-scale sidereal anisotropy of galactic cosmic-ray intensity observed by the Tibet air shower array
文献类型：期刊论文
| 作者 | Amenomori, M; Ayabe, S; Cui, SW; Ding, LK; Ding, XH; Feng, CF; Feng, ZY; Gao, XY; Geng, QX; Guo, HW |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2005-06-10 |
| 卷号 | 626页码:L29-L32 |
| 关键词 | cosmic rays diffusion ISM : magnetic fields |
| ISSN号 | 0004-637X |
| 英文摘要 | We present the large-scale sidereal anisotropy of Galactic cosmic-ray intensity in the multi-TeV region observed with the Tibet-III air shower array during the period from 1999 through 2003. The sidereal daily variation of cosmic rays observed in this experiment shows an excess of relative intensity around 4-7 hr local sidereal time as well as a deficit around 12 hr local sidereal time. While the amplitude of the excess is not significant when averaged over all declinations, the excess in individual declination bands becomes larger and clearer as the viewing direction moves toward the south. The maximum phase of the excess intensity changes from similar to 7 hr at the Northern Hemisphere to similar to 4 hr at the equatorial region. We also show that both the amplitude and the phase of the first harmonic vector of the daily variation are remarkably independent of primary energy in the multi-TeV region. This is the first result determining the energy and declination dependences of the full 24 hr profiles of the sidereal daily variation in the multi-TeV region with a single air shower experiment. |
| WOS关键词 | GAMMA-RAYS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000229532500007 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.100.186/handle/113462/25754]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Amenomori, M |
| 作者单位 | 1.Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan 2.Saitama Univ, Dept Phys, Urawa, Saitama 3388570, Japan 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China 4.Tibet Univ, Dept Math & Phys, Lhasa 850000, Peoples R China 5.Shandong Univ, Dept Phys, Jinan 250100, Peoples R China 6.SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China 7.Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China 8.Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan 9.Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan 10.Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan |
| 推荐引用方式 GB/T 7714 | Amenomori, M,Ayabe, S,Cui, SW,et al. Large-scale sidereal anisotropy of galactic cosmic-ray intensity observed by the Tibet air shower array[J]. ASTROPHYSICAL JOURNAL,2005,626:L29-L32. |
| APA | Amenomori, M.,Ayabe, S.,Cui, SW.,Ding, LK.,Ding, XH.,...&Zhou, XX.(2005).Large-scale sidereal anisotropy of galactic cosmic-ray intensity observed by the Tibet air shower array.ASTROPHYSICAL JOURNAL,626,L29-L32. |
| MLA | Amenomori, M,et al."Large-scale sidereal anisotropy of galactic cosmic-ray intensity observed by the Tibet air shower array".ASTROPHYSICAL JOURNAL 626(2005):L29-L32. |
入库方式： OAI收割
来源：近代物理研究所
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