质心运动的视超光速源的运动规律  

A RELATIVISTIC MODEL OF THE MOVEMENT OF APPARENT SUPERLUMINAL RADIO SOURCE

作　　者：于秦生[1] 

机构地区：[1]安庆师范学院物理系,安庆246011

出　　处：《天文学报》2001年第2期148-154,共7页Acta Astronomica Sinica

基　　金：安徽省教委资助课题

摘　　要：在源的质心固定的视超光速模型的基础上 ,进一步推导出在质心运动情况下的视超光速运动的视速度方程 .在喷流方向与源的退行方向相反的情况下 ,推导出核与子源速率相等及核固定条件下求子源真实速度的方程 .然后代入视超光速源的视速度和由自康顿效应推算的喷流与视线的夹角数据 ,从而求出上述极值条件下子源的真实速度 .再与对应源的哈勃红移速度相对照 ,结果发现 。Based on the relativistic superluminal model of the apparent superluminal motion, under the condition that the center of mass of a superluminal radio source remains motion relative to the observer the equation of apparent velocity between nucleus and subsources is derived. Assuming that the directions of jet and movement of superluminal radio source are opposite, then, supposing that the velocities of nucleus and components of SLS are equal and the nucleus is fixed, the equations of real velocity of are respetively derived. With data of V app and θ substituted in the equation of real velocity, the real velocity of the components of SLS is obtaine. By contrasting the real velocity with the velocity of Hubble redshift of SLS, it is concluded that movement of SLS has no influence on the velocity of subsources.

关 键 词：视超光速射电源 表观速度 真实速度 质心运动 喷流方向 康顿效应 

分 类 号：P162.5[天文地球—天文学]