ON THE e(+)e(-) EXCESSES AND THE KNEE OF THE COSMIC RAY SPECTRA-HINTS OF COSMIC RAY ACCELERATION IN YOUNG SUPERNOVA REMNANTS

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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
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2009
卷号	700 期号:2 页码:L170-L173
关键词	acceleration of particles cosmic rays supernova remnants
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
英文摘要	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.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000268157500026
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240259]
专题	高能物理研究所_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	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.