Discriminating local sources of high-energy cosmic electrons and positrons by current and future anisotropy measurements
文献类型：期刊论文
| 作者 | Bi XJ(毕效军) ; Yin, PF; Bi, XJ; Fang, K; Yin PF(殷鹏飞); Fang K(方堃)
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2018 |
| 卷号 | 478期号:4页码:5673-5683 |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/sty1463 |
| 文献子类 | Article |
| 英文摘要 | Using 7 yr of data, the Fermi LargeArea Telescope (LAT) has detected no significant anisotropy of cosmic ray (CR) electrons and positrons (e(-) + e(+)). This provides the strongest restriction to the e(-) + e(+) anisotropy up to now. As a next-generation CR observatory, the high-energy cosmic-radiation detection (HERD) facility is expected to be better capable of detecting anisotropy than the Fermi-LAT. In this paper, we discuss several models that aim to explain the AMS-02 data using present and future anisotropy measurements. We find that the upper limits of the Fermi-LAT disfavour the Vela supernova remnant as the dominant source in sub-TeV, while other cases that remain safe under the constraints of the Fermi-LAT are expected to be distinguished from each other by the HERD. We also discuss the possibilities of remarkable TeV spectral features, and we test the corresponding anisotropies. We find the conditions under which the TeV model can have a prominent spectral feature and can avoid the constraints of the Fermi-LAT at the same time. Furthermore, the expected performance of the HERD is sensitive enough to detect the anisotropies of all these TeV models, and even for the case of a featureless TeV spectrum. Thus, the HERD might play a crucial part in the study of the origin of cosmic electrons and positrons. |
| 电子版国际标准刊号 | 1365-2966 |
| WOS关键词 | RAY ELECTRONS ; SUPERNOVA-REMNANTS ; MONOGEM RING ; VELA-X ; RADIO ; EXCESS ; PULSARS ; BUBBLE ; GALAXY |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000441288300100 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286213]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 通讯作者 | Bi XJ(毕效军) |
| 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 | Bi XJ,Yin, PF,Bi, XJ,et al. Discriminating local sources of high-energy cosmic electrons and positrons by current and future anisotropy measurements[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,478(4):5673-5683. |
| APA | 毕效军,Yin, PF,Bi, XJ,Fang, K,殷鹏飞,&方堃.(2018).Discriminating local sources of high-energy cosmic electrons and positrons by current and future anisotropy measurements.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,478(4),5673-5683. |
| MLA | 毕效军,et al."Discriminating local sources of high-energy cosmic electrons and positrons by current and future anisotropy measurements".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 478.4(2018):5673-5683. |
入库方式： OAI收割
来源：高能物理研究所
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