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Comparisons of Jet Properties between GeV Radio Galaxies and Blazars
Xue, Zi-Wei1,2; Zhang, Jin1,3,4; Cui, Wei3; Liang, En-Wei4; Zhang, Shuang-Nan1,2,5
2017-09-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume17Issue:9
AbstractWe 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.
SubtypeArticle
KeywordGalaxies: Active Galaxies: General Galaxies: Jets Gamma Rays: Galaxies Radiation Mechanisms: Non-thermal
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational 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)
DOI10.1088/1674-4527/17/9/90
WOS KeywordGAMMA-RAY EMISSION ; ACTIVE GALACTIC NUCLEI ; HIGH-ENERGY EMISSION ; NGC 1275 ; DICHOTOMY ; RADIATION ; SAMPLE ; POWER ; HOT ; CENTAURUS
Indexed BySCI
Language英语
Funding OrganizationNational 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)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000412778300002
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20093
Collection空间科学研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA
4.Guangxi Univ, Dept Phys, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China
5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xue, Zi-Wei,Zhang, Jin,Cui, Wei,et al. Comparisons of Jet Properties between GeV Radio Galaxies and Blazars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(9).
APA Xue, Zi-Wei,Zhang, Jin,Cui, Wei,Liang, En-Wei,&Zhang, Shuang-Nan.(2017).Comparisons of Jet Properties between GeV Radio Galaxies and Blazars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(9).
MLA Xue, Zi-Wei,et al."Comparisons of Jet Properties between GeV Radio Galaxies and Blazars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.9(2017).
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