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The Correlation between the Gamma-Ray Luminosity and the Core-Dominance Parameters for a Fermi Blazar Sample

Published online by Cambridge University Press:  25 July 2014

J. H. Fan ,
J. H. Yang ,
D. X. Wu ,
S. H. Li ,
Y. Liu  and
Z. Y. Ji
J. H. Fan
Affiliation:
CfA, Guangzhou University, Guangzhou 510006, China email: [email protected] Astron. Sci. & Tech. Res. Lab. of Dept of Edu. of Guangdong Province, China
J. H. Yang
Affiliation:
CfA, Guangzhou University, Guangzhou 510006, China email: [email protected] Dept. of Phys. & Electron. Sci., Hunan Uni. of Arts and Sci., Changde 415000, China
D. X. Wu
Affiliation:
CfA, Guangzhou University, Guangzhou 510006, China email: [email protected] Astron. Sci. & Tech. Res. Lab. of Dept of Edu. of Guangdong Province, China
S. H. Li
Affiliation:
CfA, Guangzhou University, Guangzhou 510006, China email: [email protected] Astron. Sci. & Tech. Res. Lab. of Dept of Edu. of Guangdong Province, China
Y. Liu
Affiliation:
CfA, Guangzhou University, Guangzhou 510006, China email: [email protected] Astron. Sci. & Tech. Res. Lab. of Dept of Edu. of Guangdong Province, China
Z. Y. Ji
Affiliation:
School of Astronomy and Space science, Nanjing University, Nanjing, China
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Abstract

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In this work, we investigated the correlation between the γ-ray luminosity, logLγ and the core-dominance parameter, log (1+R), for a sample of 124 Fermi blazars with available core and extended radio emissions. Our analysis shows that there is no correlation between the γ-ray luminosity, log Lγ and the core-dominance parameter, log (1+R). However, there is a closely linear correlation between log Lγ − log LExt and log (1+R), log Lγ−log LExt = (0.95 ± 0.08) log (1+R) + (2.72 ± 0.11), for the whole sample. The result suggests that the γ-ray emissions are composed of two components, one is beamed, the other is unbeamed.

Keywords

galaxies:active-galaxies:BL Lacertae objects-galaxies:quasars-galaxies:jets
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S304: Multiwavelength AGN Surveys and Studies , October 2013 , pp. 157 - 158
Copyright
Copyright © International Astronomical Union 2014 

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