中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 中国科学院紫金山天文台研究生部  > 学生文章
题名: Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total e(+/-) spectra by the primary electron spectrum hardening
作者: Yuan, Qiang1, 2; Bi, Xiao-Jun2
刊名: PHYSICS LETTERS B
出版日期: 2013-11-01
卷号: 727, 期号:1-3, 页码:1-7
DOI: 10.1016/j.physletb.2013.10.010
文章类型: Article
英文摘要: The recently reported positron fraction up to similar to 350 GeV by AMS-02 seems to have tension with the total electron/positron spectra detected by Fermi and HESS, for either pulsar or dark matter annihilation/decay scenario as the primary positron sources. In this work we will show that the tension will be removed by an adjustment of the primary electron spectrum. If the primary electron spectrum becomes harder above similar to 50 GeV, similar as the cosmic ray nuclei spectrum, the AMS-02 positron fraction and Fermi/HESS data can be well fitted by both the pulsar and dark matter models. This result may be suggestive of a common origin of the cosmic ray nuclei and the primary electrons. Furthermore, this study also implies that the properties of the extra sources derived from the fitting to the AMS-02 data should depend on the form of background. (C) 2013 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: COSMIC-RAY PROTON ; SUPERNOVA-REMNANTS ; SOLAR MODULATION ; HELIUM SPECTRA ; ORIGIN ; ENERGIES ; COMPONENT ; EXCESSES ; PULSAR ; GAMMA
收录类别: SCI
语种: 英语
WOS记录号: WOS:000328518400001
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15519
Appears in Collections:中国科学院紫金山天文台研究生部_学生文章

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yuan, Qiang]'s Articles
[Bi, Xiao-Jun]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yuan, Qiang]‘s Articles
[Bi, Xiao-Jun]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院紫金山天文台 - Feedback
Powered by CSpace