摘要
通过对射电星系３Ｃ３９０．３在历元１９８９．２９及６ｃｍ波长的ＶＬＢＩ观测数据的多软件包成象，辨认出其弱秒差距尺度喷流中几个分离的节，将它们和以前发表及未发表的同一波长的成象结果比较，显示了该源弱秒差距尺度喷流的弯曲和反喷流，并重新证认了喷流中节的视超光速运动。
DA multi-method image processing of the VLBI observation of the radio galaxy 3C390.3 at 6 cm has been tried to identify discernible components in the faint parsecscale jet of the source at epoch 1989.29. On the basis of excellently consistent results obtained from four packages and model fitting, we can compare them with 6-cm maps obtained previously,including both published and unpublished results.Curvature of the jet and an explicit counter jet are probably revealed in the processing.The superluminal motion of the knots in the jet is reconfirmed by the comparison.
基金
国家自然科学基金
中国科学院射电天文联合实验室及天文委员会资助
关键词
射电星系
喷流
反喷流
视超光速运动
radio galaxies,jets of,counter,jets-superluminal motion.
