自然杂志 ›› 2016, Vol. 38 ›› Issue (1): 52-58.doi: 10.3969/j.issn.0253-9608.2016.01.008

• 自然论坛 • 上一篇    下一篇

宇宙中最神秘的天体——类星体(三):活动星系核及其观测特征

何香涛   

  1. 北京师范大学天文系,北京 100875
  • 收稿日期:2014-11-19 出版日期:2016-02-25 发布日期:2016-02-23

The most mysterious object in our universe — Quasar (Ⅲ): The family of AGNs and the observational characters

HE Xiangtao   

  1. Department of Astronomy, Beijing Normal University, Beijing 100875, China
  • Received:2014-11-19 Online:2016-02-25 Published:2016-02-23

摘要: 活动星系核大家族中,除类星体之外,还有塞弗特星系和BL Lac 天体等。据估计,河外星系中有将近一半的河外星系具有某种剧烈的活动。大家族的最主要成员是类星体。天文学家对类星体的表面特征做了详细的观测,包括它的亮度、大小和喷流结构。但是,到目前为止,我们只能绘出一张带有想象力的、并不十分确切的类星体结构图。

关键词: 类星体, 活动星系核, 喷流

Abstract: There is a big family of AGNs (active galactic nuclei), which includes Quasar, Seyfert, BL Lac and others. About half of the AGNs have some active phenomenon. Quasar is the main member of the AGN family. We observed the possible various detail of the quasar including the brightness, size and jets. We show the imaging picture of the quasar structure which may not be a real.