标题： 脉冲星多普勒因子、外流角度和整体洛伦兹因子的估计值 显示英文标题

标题： Estimates of Doppler Factors, Outflow Angles, and Bulk Lorentz Factors for a Sample of Compact Radio Sources

摘要： 本文提出了两个关键结果。 首先，已经对105个先前估计了逆康普顿多普勒因子的源进行了等分多普勒因子的估计。 活动星系核（AGN）的不同类别具有不同的多普勒因子范围和典型值；瓣主导的AGN倾向于具有低多普勒因子，核心主导的类星体倾向于具有大的多普勒因子，而BL Lacertae天体则涵盖了全部范围的多普勒因子。 这些结果支持了不同类别AGN的“方向统一模型”。 第二个关键结果来自于结合等分多普勒因子和超光速运动研究中的表观速度。 有43个源同时具备表观速度和等分多普勒因子。 为这43个源中的每一个都估算了整体洛伦兹因子和喷流角度。 同样，不同类别AGN的典型参数值非常有趣，并且通常与基于方向统一模型的预期一致。 显示英文摘要

摘要： Two key results are presented in this paper. First, equipartition Doppler factors have been estimated for a sample of 105 sources with previously estimated inverse Compton Doppler factors. The different categories of active galactic nuclei (AGN) have different ranges and typical values of the Doppler factor; lobe dominated AGN tend to have low Doppler factors, core-dominated quasars tend to have large Doppler factors, and BL Lacertae objects span the full range of Doppler factors. These results support the "orientation unified model" for different categories of AGN. The second key result comes from combining equipartition Doppler factors and apparent velocities from superluminal motion studies. There are 43 sources for which apparent speeds and equipartition Doppler factors are available. The bulk Lorentz factor and outflow angle are estimated for each of these 43 sources. Again, typical parameter values for different categories of AGN are quite interesting, and generally agree with expectations based on the orientation unified model.