摘要
本文对ＢＬＬａｃ天体的研究现状，目前天体物理界所热衷的问题：尘埃问题，宁静问题、发射线问题、ＢＬＬａｃ天体与ＯＶＶ／ＨＰＱ关系问题，及处理ＢＬＬａｃ天体的流行方案作一个介绍。
In this paper, the relation between BL Lac objects and OVV/HPQ, the problems of dust, emission lines and quiescenc in BL Lac objects, and the conventional method used to deal with BL Lac objects have been introduced.
关键词
活动星系核
BLLAC天体
演化
引力透镜
发射线
吸积盘
喷流
天体物理学
Active Galactic Nuclei (AGN)-BL Lac Objects-Micro gravitational lens-Evoluation-Emission Line-Blue Bumps-Jets-Accretion Disc.
