The relationship between the radio core dominance parameter and the spectral index in different classes of extragalactic radio sources |
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| Authors: | Jun-Hui Fan Jiang-He Yang Jing Pan Tong-Xu Hua Center for Astrophysics Guangzhou University Guangzhou China Astronomy Science Technology Research Laboratory of |
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| Institution: | Jun-Hui Fan1,2,Jiang-He Yang1,3,Jing Pan1,2 and Tong-Xu Hua1,2 1 Center for Astrophysics,Guangzhou University,Guangzhou 510006,China,2 Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province,China 3 Department of Physics and Electronics Science,Hunan University of Arts and Science,Changde 415000 |
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| Abstract: | Active galactic nuclei(AGNs)have two major classes,namely radio loud AGNs and radio quiet AGNs.A small subset of the radio-loud AGNs is called blazars,which display extreme observational properties,such as rapid variability,high luminosity,high and variable polarization,and superluminal motion.All of those observational properties are probably due to a relativistic beaming effect with the jet pointing close to the line of sight.Observations suggest that the orientation can be expressed by a core-dominance p... |
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