摘要
本文研究了具有超光速的射电源，并由此得到一些统计性质．分析表明，对视超光速射电源而言，源的束流在自身坐标系中的本征光度与非束流光度之比ｆ小于００１，ＢＬＬａｃ天体的ｆ大于其它核优类星体的ｆ；关系式Ｒ＝ｆδ３＋２不适于本文中的数据，这可能与两个因素有关：即ｆ与δ可能是相关的或者本文给出的δ下限与真实的δ有一定差别；核优系数（Ｒ）与亮温度（Ｔ）之间表现出密切的相关，但这个相关只是多普勒因子与Ｒ和Ｔ相关所带来的一个表观相关；对于一定的Ｒ９０及洛伦兹因子而言，视向角θ随Ｒ而下降．
In this paper, some statistical correlations concerning superluminal radio sources are derived. The results show that the ratios, f, of the intrinsic jet and unbeamed luminosities is less than 0.01 and the f's of BL Lac objects aregreater than those of core dominanced quasars (CQ), and the relation between the core dominance parameter and brightness temperature is actually a reflection of the correlations between the Doppler factor and core dominance parameter and brightness temperature, furthermore, the viewing angle decreases with the core dominance parameter for certain R 90 and Lorentz factor for the objects with superluminal velocity.
基金
国家自然科学基金
"九.五"重点基金
广州师范学院启动经费资助
