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ON THE e(+)e(-) EXCESSES AND THE KNEE OF THE COSMIC RAY SPECTRA-HINTS OF COSMIC RAY ACCELERATION IN YOUNG SUPERNOVA REMNANTS
Hu HB(胡红波); Yuan Q(袁强); Wang B(王博); Fan C(樊超); Zhang JL(张建立); Bi XJ(毕效军); Hu, HB; Yuan, Q; Wang, B; Fan, C; Zhang, JL; Bi, XJ
2009
发表期刊ASTROPHYSICAL JOURNAL LETTERS
卷号700期号:2页码:L170-L173
通讯作者[Hu, Hong-Bo ; Yuan, Qiang ; Wang, Bo ; Fan, Chao ; Zhang, Jian-Li ; Bi, Xiao-Jun] Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Fan, Chao] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China
文章类型Article
摘要Supernova remnants (SNRs) have long been regarded as sources of the Galactic cosmic rays (CRs) up to petaelectronvolts, but convincing evidence is still lacking. In this work we explore the common origin of the subtle features of the CR spectra, such as the knee of CR spectra and the excesses of electron/positron fluxes recently observed by ATIC, H. E. S. S., Fermi-LAT, and PAMELA. Numerical calculation shows that those features of CR spectra can be well reproduced in a scenario with e(+)e(-) pair production by interactions between high-energy CRs and background photons in an environment similar to the young SNR. The success of such a coherent explanation serves in turn as evidence that at least a portion of CRs might be accelerated in young SNRs.
关键词acceleration of particles cosmic rays supernova remnants
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1088/0004-637X/700/2/L170
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000268157500026
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被引频次:38[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/311005/240259
专题粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
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Hu HB,Yuan Q,Wang B,et al. ON THE e(+)e(-) EXCESSES AND THE KNEE OF THE COSMIC RAY SPECTRA-HINTS OF COSMIC RAY ACCELERATION IN YOUNG SUPERNOVA REMNANTS[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,700(2):L170-L173.
APA 胡红波.,袁强.,王博.,樊超.,张建立.,...&Bi, XJ.(2009).ON THE e(+)e(-) EXCESSES AND THE KNEE OF THE COSMIC RAY SPECTRA-HINTS OF COSMIC RAY ACCELERATION IN YOUNG SUPERNOVA REMNANTS.ASTROPHYSICAL JOURNAL LETTERS,700(2),L170-L173.
MLA 胡红波,et al."ON THE e(+)e(-) EXCESSES AND THE KNEE OF THE COSMIC RAY SPECTRA-HINTS OF COSMIC RAY ACCELERATION IN YOUNG SUPERNOVA REMNANTS".ASTROPHYSICAL JOURNAL LETTERS 700.2(2009):L170-L173.
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