摘要
由５ＧＨｚ和１．６６ＧＨｚ的ＶＬＢＩ全球阵观测，我们获得类星体３Ｃ２８６在该两频率上的高动态范围的毫角秒尺度的图像和谱指数在结构中的分布状况。从谱指数，我们无法判断该源中央两个子源中哪一个是真正的核。我们排除３Ｃ２８６的结构是由引力透镜所形成的像的可能性，也许在该源的中央存在两个黑洞，即两个中央“引擎”，每一个有它自己的、向不同方向延伸的喷流。
High dynamic range images on mas scale and the distribution of spectrum index in the structure were obtained for QSO 3C286 with the observations of global VLBI arrays at 5 and 1.66 GHz. There are two components located at the center of 3C286. But, with the spectrum index, we could not determine which one is the real core of 3C286. It is impossible that the structure of 3C286 is the image caused by a gravitational lens. There may be two active (binary) black holes, i.e. two central“engines”at the center, each one has its jet extending in different directions.
出处
《天文学报》
CSCD
北大核心
1995年第2期115-119,共5页
Acta Astronomica Sinica
基金
国家自然科学基金
