IHEP OpenIR  > 粒子天体物理中心
CHEMICAL COMPOSITION AND MAXIMUM ENERGY OF GALACTIC COSMIC RAYS
Shibata, M; Katayose, Y; Huang J(黄晶); Huang, J; Chen, D
2010
发表期刊ASTROPHYSICAL JOURNAL
卷号716期号:2页码:1076-1083
通讯作者[Shibata, M. ; Katayose, Y.] Yokohama Natl Univ, Dept Phys, Yokohama, Kanagawa 2408501, Japan ; [Huang, J.] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Chen, D.] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
摘要A model of the cosmic-ray energy spectrum is proposed that assumes various acceleration limits at multiple sources. The model describes the broken power-law energy spectrum of cosmic rays by superposition of multiple sources; a diffusive shock acceleration mechanism plays an essential role. The maximum energy of galactic cosmic rays is discussed based on a comparison of experimental data with calculations done using the proposed model. The model can describe the energy spectrum at very high energies of up to several times 10(18) eV, but the observed highest-energy cosmic rays deviate from the model predictions, indicating a different origin, such as an extragalactic source. This model describes the steepening of the power index at the so-called knee. However, it was found that additional assumptions are needed to explain the sharpness of the knee. Two possible explanations for the structure of the knee are discussed in terms of nearby source(s) and the hard energy spectrum suggested by nonlinear effects of cosmic-ray acceleration mechanisms.
文章类型Article
关键词acceleration of particles Galaxy: general shock waves supernovae: general
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
DOI10.1088/0004-637X/716/2/1076
URL查看原文
语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000278459000014
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239005
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Shibata, M,Katayose, Y,Huang J,et al. CHEMICAL COMPOSITION AND MAXIMUM ENERGY OF GALACTIC COSMIC RAYS[J]. ASTROPHYSICAL JOURNAL,2010,716(2):1076-1083.
APA Shibata, M,Katayose, Y,黄晶,Huang, J,&Chen, D.(2010).CHEMICAL COMPOSITION AND MAXIMUM ENERGY OF GALACTIC COSMIC RAYS.ASTROPHYSICAL JOURNAL,716(2),1076-1083.
MLA Shibata, M,et al."CHEMICAL COMPOSITION AND MAXIMUM ENERGY OF GALACTIC COSMIC RAYS".ASTROPHYSICAL JOURNAL 716.2(2010):1076-1083.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
6098.pdf(617KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Shibata, M]的文章
[Katayose, Y]的文章
[黄晶]的文章
百度学术
百度学术中相似的文章
[Shibata, M]的文章
[Katayose, Y]的文章
[黄晶]的文章
必应学术
必应学术中相似的文章
[Shibata, M]的文章
[Katayose, Y]的文章
[黄晶]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 6098.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。