The ratio RT of the jet to the unbeamed luminosities for superluminal radio sources

• 来源期刊: 中国物理（英文版）
• 关键词: active galactic nuclei superluminal motion relativistic beaming
• 年，卷（期）: 2003,（3）
• 页码范围: 332-335
• 页数: 4页
• 语种: 英文

摘要

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.