BL Lac天体AO 0235+164射电光变的周期性分析

A Periodicity Analysis of the Radio Light Curve of BL Lac AO 0235+164

利用UMRAO数据库的观测资料给出了BL Lac 0235+164的射电8 GH的历史光变曲线,并应用Jurkevich方法和弥散相关函数法对其周期性进行了分析,发现其存在两个长时标光变周期,大约是3.7 a和5.5 a.

We get a history light curve of BL Lac 0235+164 at the frequency of 8 GHz taken from the database of University of Michigan Radio Astronomy Observatory,and two possible periods,3.7 and 5.5 year,were consistently identified by two methods: the Jurkevich method and discrete correlation function method(DCF).