高能天体物理研究组知识库

耀变体是一类喷流与视线方向近似平行的活动星系核,高偏振是其区别于其他活动星系核的一个典型特征。耀变体的偏振一般认为是由喷流中相对论电子的同步辐射产生的。通过对光学偏振的观测,可以充分约束喷流性质,也给其他波段的光变信息提供补充。主要介绍耀变体光学偏振的研究情况:首先介绍耀变体及其偏振的一些背景;随后介绍耀变体偏振产生的原因、耀变体的去偏振效应、耀变体偏振随波长变化的研究,以及高能耀发与光学偏振相关性研究;最后,对耀变体光学偏振研究进行展望。

generally thought to be from the synchrotron radiation of the relativistic electrons in the jet. Optical polarization observations can constrain the jet properties and provide supplement information on the light curve properties in other wavelengths. The paper focuses on the study of the optical polarization of blazars. Firstly,the general backguound of blazars and their polarization are introduced. Then,the mechanism of the blazar polarization, the depolarization effect, the study of the frequency dependence polarization(FDP) behavior, the correlation between the high-energy flare and the optical polarization are presented. Finally, the prospects of the optical polarization study on blazars are outlined.