活动星系核中的喷流形成  

Jet Formation in Active Galactic Nuclei

作　　者：曹新伍[1] 

机构地区：[1]中国科学院上海天文台,上海200030

出　　处：《天文学进展》2002年第1期95-103,共9页Progress In Astronomy

基　　金：国家重点基础研究项目(G1999075403)资助课题;国家自然科学基金(19703002;10173016)资助课题

摘　　要：对活动星系核中的喷流加速机制、观测特征及目前研究近况进行了评述．磁场在喷流加速过程中起重要作用，对磁场加速喷流模型中喷流加速区域的大小进行了估计。比较了不同的磁场加速喷流模型，并讨论了有序吸积盘磁场的形成与维持过程。简要地评述了活动星系核中吸积盘与喷流存在内在联系的观测证据，及中央黑洞与活动星系核的射电辐射特征的关系。The acceleration mechanisms and observational features of jets in active galactic nuclei, and the recent research progresses on these topics are reviewed in this paper. The size of the region in which the jet is magnetically accelerated is estimated. The different magnetically driven jet models are presellted, and the formation and maintenance of the ordered magnetic field configu- ration of the disks are discussed. The observational evidence on the disk-jet connection in active galactic nuclei and the correlation between the central black holes and their radio properties are summarized.

关 键 词：活动星系核 喷流 吸积 喷流加速机制 吸积盘 黑洞 

分 类 号：P157.6[天文地球—天文学]