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Dependence of Core and Extended Flux on Core Dominance Parameter for Radio Sources

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Abstract

Based on two extragalactic radio source samples, the core dominance parameter is calculated, and the correlations between the core/extended flux density and core dominance parameter are investigated. When the core dominance parameter is lower than unity, it is linearly correlated with the core flux density, but it is not correlated with the extended flux density. When the core dominance parameter is higher than unity, it is not correlated with the core flux density, but it is linearly correlated with the extended flux density. Therefore, there are different results from different samples. The results can be explained using a relativistic beaming model.

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Acknowledgements

This work is supported by the National Natural Science Foundation of China (NSFC 11173009, NSFC 11203007), the Bureau of Education of Guangzhou Municipality (No. 11 Sui-Jiao-Ke (2009)), Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (GDUPS) (2009), Yangcheng Scholar Funded Scheme (10A027S), Hunan Provincial Natural Science Foundation of China (10JJ3020), and the research fund of Hunan University of Arts and Science (JJZD 201101).

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Correspondence to J. J. Nie.

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Nie, J.J., Yang, J.H. Dependence of Core and Extended Flux on Core Dominance Parameter for Radio Sources. J Astrophys Astron 35, 227–230 (2014). https://doi.org/10.1007/s12036-014-9200-5

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  • DOI: https://doi.org/10.1007/s12036-014-9200-5

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