The ratio RT of the jet to the unbeamed luminosities for superluminal radio sources
Fan Jun-Hui (樊军辉)ab, Lin Rui-Guang (林瑞光)b
a National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, China; b Center for Astrophysics, Guangzhou University, Guangzhou 510400, China
Abstract Relativistic beaming model has been successfully used to explain the observational properties in active galactic nuclei. In this model the emissions are composed of two components, i.e. the boosted and the isotropic emissions. But how much is from each part is unknown. It has been assumed that the luminosity in the jet is proportional to the unbeamed in the comoving frame. However, the value of this ratio is not easy to determine. In this paper, we use the beaming model and the radio sources with superluminal motions to estimate the ratio, RT, for each source. We find RT= 0.044±0.02, which is consistent with that found by Orr and Browne.
Received: 08 May 2002
Revised: 24 November 2002
Accepted manuscript online:
PACS:
98.62.Js
(Galactic nuclei (including black holes), circumnuclear matter, and bulges)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 19973001), by the State Key Development of Basic Research of China (Grant No G19990754), and the National Natural Science Foundation for Outstanding Young Scientists of China
Cite this article:
Fan Jun-Hui (樊军辉), Lin Rui-Guang (林瑞光) The ratio RT of the jet to the unbeamed luminosities for superluminal radio sources 2003 Chinese Physics 12 332
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