The optical periodic analysis of BL Lac object AO 0235+164 |
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| Authors: | Hongtao Wang |
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| Institution: | 1. Faculty of Physics and Electronic Information, LangFang Teacher’s College, 065000, LangFang, China
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| Abstract: | BL Lac object AO 0235+164 is a well-known object. We collect a large number of effective observation in B, V, R and I band from historical literatures. The possible periods are analyzed by means of discrete correlation function (DCF) method, structure function (SF) method and Jurkevich (J-K) method. The results show that there are possible periodic variations of 2.63–2.66 years in B band, 2.79–2.84 years in V band, 2.57–2.87 years in R band, 2.62–2.88 years in I band, respectively. |
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