摘要
本文根据文[1，2]三个类星体表的3941个类星体作统计分析，发现在发射红移Zem1．4—3．2范围内吸收线较多，尤其在Zem1．8—2．4范围内明显增加；同时在Zem1．4—2．8范围内出现吸收线红移Zab＞Zem的现象．结果表明，在Zem1．8—2．2间隔内的类星体活动性加剧，似可以说反映了类星体与环境相互作用的演化效应．
A stahshcal analysis of 3941 QSOs in three tables given by Hewitt and Burbidge in papers [1] and [2] has ho camed out, finding out considerable absorption lines in Zem range of l'4-- 3'2 and remarkable in^sement of them in the As interval of l'8 -- 2'4.Meantime, absorption redshifts Zab>Zem happen in the Zem range of 1.4 - 2.8. This shows that the activities of QSOs enhance in the Zem interval of 1.8 - 2.2.This seems to reflect the evolution of QSOs with the interaction of their environment.
出处
《天文学报》
CSCD
北大核心
1997年第2期215-219,共5页
Acta Astronomica Sinica
基金
中科院天文委员会
紫金山天文台资助
关键词
类星体
发射线
吸收线
统计分析
quasar, statistical analysis, emission line, absorption line
