RE环星系的模拟试验  

Experimental Simulation of the RE Ring Galaxies

作　　者：刘步林[1] 

机构地区：[1]中国科学院北京天文台

出　　处：《天体物理学报》1998年第2期142-147,共6页

基　　金：国家自然科学基金;中国科学院天文口资助

摘　　要：数值模拟表明无核环星系在１０８年，甚至更大时间跨度内，尽管环内的天体作小幅度的运动，但这一类星系仍然保持明显的环形结构．he theory of Lagrangian ring was established after the theory of Lagrangian libration points of the restricted circular threebody problem was applied to the double structure of the associated radio source. The theory has resolved the problem of the total absence of nuclear bulges in the central part of the RE ring galaxies. The circular structure of an RE ring galaxy is shown to persist over a period of 108 years by numerical simulation based on the theory of Lagrangian ring.

关 键 词：LAGRANGIAN 环星系 RE星系 模拟试验 

分 类 号：P145.4[天文地球—天体物理]