河外天体喷流的观测研究——Ⅰ.3C120核心区域的一次快速增亮  

Observational Investigations of Jets of Extragalactic Objects Ⅰ. Fast Increase of Brightness of the Nucleus Region of 3C120

作　　者：孙凯[1] 张文元[2] 李治平[3] 

机构地区：[1]北京大学地球物理系 [2]云南天文台 [3]北京天文台

出　　处：《天体物理学报》1990年第4期312-314,T002,共4页

基　　金：国家自然科学基金

摘　　要：运用与本系列第一篇文章相同的设备与方法对PKS0349—27、3C98与PKS0634—20于1988年1月23—25日进行了观测。结果发现:PKS0349—27星系外缘突出物全部显现有向顺时针方向倾斜的趋势。3C98的延伸物主要向东北方向延伸。PKS0634—20的延伸物沿南北方向伸出,主要向北。Using the same facilities as in reference [3] , we observed the objects listed in Table 1, and showed in Figs 1-9 (Plates Ⅲ and Ⅳ). The relative brightness and the figures scale are expressed as in reference [3] . The main results are as follows. 1. The exterior of PKS0349-27 has many extensions (ochre color in Fig. 1), all of which tilt clockwise. 2. The extension of 3C98 spreads mainly to the northeast, especially in the I band images. 3. The extensions of PKS 0634-20 lie along the north-south direction, mainly to the north, especially in the I band image.

关 键 词：河外天体 喷流 延伸物 个别星系 

分 类 号：P157[天文地球—天文学]