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题名: DISCOVERY OF gamma-RAY EMISSION FROM THE STRONGLY LOBE-DOMINATED QUASAR 3C 275.1
作者: Liao, Neng-Hui1; Xin, Yu-Liang1, 2; Li, Shang1, 2; Jiang, Wei1, 2; Liang YunFeng(梁云峰)1, 2; Li, Xiang1, 2; Zhang, Peng-Fei1, 3; Chen, Liang4; Bai, Jin-Ming5; Fan YiZhong(范一中)1
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2015-07-20
卷号: 808, 期号:1, 页码:74
关键词: galaxies: active ; galaxies: jets ; quasars: individual (3C 275.1) ; radiation mechanisms: non-thermal
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/808/1/74
文章类型: Article
英文摘要: We systematically analyze the 6 year Fermi/Large Area Telescope (LAT) data on lobe-dominated quasars (LDQs) in the complete LDQ sample from the Revised third Cambridge Catalogue of Radio Sources (3CRR) survey and report the discovery of high-energy gamma-ray emission from 3C 275.1. The gamma-ray emission of 3C 207 is confirmed and significant variability of the light curve is identified. We do not find statistically significant gamma-ray emission from other LDQs. 3C 275.1 is the known gamma-ray quasar with the lowest core dominance parameter (i.e., R=0.11). We also show that both the northern radio hotspot and parsec jet models can reasonably reproduce the gamma-ray data. The parsec jet model, however, is favored by the potential gamma-ray variability on a timescale of months. We suggest that some dimmer gamma-ray LDQs will be detected in the future and LDQs could contribute non-ignorably to the extragalactic gamma-ray background.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: ACTIVE GALACTIC NUCLEI ; LARGE-AREA TELESCOPE ; II RADIO GALAXIES ; ALL-SKY SURVEY ; X-RAY ; COMPLETE SAMPLE ; HOT-SPOTS ; PARTICLE-ACCELERATION ; SPITZER OBSERVATIONS ; OPTICAL-EMISSION
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000359062500074
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14805
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China
4.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
5.Chinese Acad Sci, Yunnan Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China
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