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题名: Detection of gamma-ray emission from globular clusters M15, NGC 6397, 5904, 6218 and 6139 with Fermi-LAT
作者: Zhang, P. F.1, 2; Xin, Y. L.2, 3; Fu, L.2; Zhou, J. N.4; Yan, J. Z.2; Liu, Q. Z.2; Zhang, L.1
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2016-06-11
卷号: 459, 期号:1, 页码:99-107
关键词: globular clusters: individual: M15 ; globular clusters: individual: NGC 5904 ; globular clusters: individual: NGC 6397 ; globular clusters: individual: NGC 6218 ; globular clusters: individual: NGC 6139
DOI: 10.1093/mnras/stw567
文章类型: Article
英文摘要: In the third Fermi catalogue (3FGL) there are 16 gamma-ray globular clusters. Following an analysis of the recently released Pass 8 data from the Fermi Large Area Telescope (LAT), we report the discovery of significant gamma-ray emission from M15 and NGC 6397, confirm that NGC 5904 is a gamma-ray-emitter and provide evidence of gamma-ray emission from NGC 6218 and 6139. Interestingly, in the globular clusters M15, NGC 6397 and 5904, millisecond pulsars (MSPs) have been found in the radio or X-ray, which strongly support the MSP origin of the gamma-ray emission. Owing to the relatively low luminosity of the gamma-ray emission, however, we do not find any evidence for gamma-ray pulsation or flux variability in these sources.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: LARGE-AREA TELESCOPE ; PULSAR-TIMING PACKAGE ; MILLISECOND PULSARS ; SOURCE CATALOG ; 47 TUCANAE ; X-RAY ; POPULATION ; TEMPO2 ; GALAXY ; MODEL
收录类别: SCI
项目资助者: 973 Program of China(2013CB837000) ; National Natural Science Foundation of China(11273064 ; Strategic Priority Research Program of CAS(XDB09000000) ; 11433004 ; 11433009 ; 11573071)
语种: 英语
WOS记录号: WOS:000376386600008
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16221
Appears in Collections:宇宙伽马暴、中子星及相关物理研究团组_期刊论文

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作者单位: 1.Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Peoples R China
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
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