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Comparisons of Jet Properties between GeV Radio Galaxies and Blazars

文献类型：期刊论文

作者Zhang, Shuang-Nan2,3,4; Cui, Wei1; Liang, En-Wei5; Xue, Zi-Wei2,3; Zhang, Jin1,3,5
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2017-09-01
卷号17期号:9
关键词Galaxies: Active Galaxies: General Galaxies: Jets Gamma Rays: Galaxies Radiation Mechanisms: Non-thermal
DOI10.1088/1674-4527/17/9/90
文献子类Article
英文摘要We compile a sample of spectral energy distributions (SEDs) of 12 GeV radio galaxies (RGs), including eight FR I RGs and four FR II RGs. These SEDs can be represented with the one-zone leptonic model. No significant unification, as expected in the unification model, is found for the derived jet parameters between FR I RGs and BL Lacertae objects (BL Lacs) and between FR II RGs and flat spectrum radio quasars (FSRQs). However, on average FR I RGs have a larger.b (break Lorentz factor of electrons) and lower B (magnetic field strength) than FR II RGs, analogous to the differences between BL Lacs and FSRQs. The derived Doppler factors (d) of RGs are on average smaller than those of blazars, which is consistent with the unification model such that RGs are the misaligned parent populations of blazars with smaller d. On the basis of jet parameters from SED fits, we calculate their jet powers and the powers carried by each component, and compare their jet compositions and radiation efficiencies with blazars. Most of the RG jets may be dominated by particles, like BL Lacs, not FSRQs. However, the jets of RGs with higher radiation efficiencies tend to have higher jet magnetization. A strong anticorrelation between synchrotron peak frequency and jet power is observed for GeV RGs and blazars in both the observer and co-moving frames, indicating that the "sequence" behavior among blazars, together with the GeV RGs, may be intrinsically dominated by jet power.
WOS关键词GAMMA-RAY EMISSION ; ACTIVE GALACTIC NUCLEI ; HIGH-ENERGY EMISSION ; NGC 1275 ; DICHOTOMY ; RADIATION ; SAMPLE ; POWER ; HOT ; CENTAURUS
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000412778300002
资助机构National Natural Science Foundation of China(11573034 ; National Natural Science Foundation of China(11573034 ; National Basic Research Program (973 Program) of China(2014CB845800) ; National Basic Research Program (973 Program) of China(2014CB845800) ; Guangxi Science Foundation(2013GXNSFFA019001) ; Guangxi Science Foundation(2013GXNSFFA019001) ; 11533003 ; 11533003 ; 11373036 ; 11373036 ; 11133002) ; 11133002) ; National Natural Science Foundation of China(11573034 ; National Natural Science Foundation of China(11573034 ; National Basic Research Program (973 Program) of China(2014CB845800) ; National Basic Research Program (973 Program) of China(2014CB845800) ; Guangxi Science Foundation(2013GXNSFFA019001) ; Guangxi Science Foundation(2013GXNSFFA019001) ; 11533003 ; 11533003 ; 11373036 ; 11373036 ; 11133002) ; 11133002)
源URL[http://ir.bao.ac.cn/handle/114a11/20093]  
专题国家天文台_空间科学研究部
作者单位1.Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
5.Guangxi Univ, Dept Phys, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Shuang-Nan,Cui, Wei,Liang, En-Wei,et al. Comparisons of Jet Properties between GeV Radio Galaxies and Blazars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(9).
APA Zhang, Shuang-Nan,Cui, Wei,Liang, En-Wei,Xue, Zi-Wei,&Zhang, Jin.(2017).Comparisons of Jet Properties between GeV Radio Galaxies and Blazars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(9).
MLA Zhang, Shuang-Nan,et al."Comparisons of Jet Properties between GeV Radio Galaxies and Blazars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.9(2017).

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来源：国家天文台

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