活动星系核的非热致电子级联模型研究及其进展:纯康普顿机制冷却情形  

The Research and Progress of Non-thermal Electron Pair Cascade Models in AGNs: The Case of Pure Compton Scattering Mechanism Cooling

作　　者：李治平[1] 

机构地区：[1]中国科学院北京天文台,北京100080

出　　处：《天文学进展》1997年第1期53-62,共10页Progress In Astronomy

摘　　要：活动星系核的高能辐射机制研究对于揭示其结构和演化特征以及中央驱动之谜具有极其重要的意义。近十年来，随着活动星系核结构模型研究以及其高能连续谱观测的发展，解释活动星系核高能辐射的非热致电子级联模型得以产生、发展和完善起来。在本文中详细地评述了纯康普顿冷却情形的非热致电子级联模型的产生背景及目前的研究进展。另外，着重地综述了非热致电子级联模型的辐射转移处理以及热电子的康普顿散射处理等问题。最后评述了这一模型在解释活动星系核的高能辐射特征方面的优缺点。The high energy radiation mechanism research of active galactic nuclei is a key to understanding their structure, evolution features and origin of central drive. During the recent decades, along with developments of AGNs structure research and high energy continuum spectra observations, the non-thermal electron pair cascade models, which can be used to explain the high energy radiation of AGNs, have been developed and are being perfected. In this paper we review the background and research progress of pure Compton non-thermal electron pair cascade models, and meanwhile focus on their radiative transfer handling and thermal electrons Compton scattering. Finally we will give a comment on the models' advantage and disadvantage in explaining high energy radiation of Active Galactic Nuclei.

关 键 词：辐射机制 辐射转移 电子级联模型 活动星系核 

分 类 号：P157.6[天文地球—天文学]