典型文献
About 300 days Optical Quasi-periodic Oscillations in the Long-term Light Curves of the Blazar PKS 2155-304
文献摘要：
Based on the long-term light curves collected from the Catalina Sky Survey (CSS) (from 2005 to 2013) and the All-Sky Automated Survey for Supernovae (ASAS-SN) (from 2014 to 2018), optical quasi-periodic oscillations (QPOs) about 300 days can be well determined in the well-known blazar PKS 2155-304 through four different methods: the generalized Lomb-Scargle periodogram (GLSP) method, the weighted wavelet Z-transform technique, the epoch-folded method and the redfit method. The GLSP determined significance level for the periodicity is higher than 99.9999％based on a false alarm probability. The redfit provided confidence level for the periodicity is higher than 99％in the ASAS-SN light curve, after considering the effects of red noise. Based on continuous autoregressive process created artificial light curves, the probability of detecting fake QPOs is lower than 0.8％. The determined optical periodicity of 300 days from the CSS and ASAS-SN light curves is well consistent with the reported optical periodicity in the literature. Moreover, three possible models are discussed to explain the optical QPOs in PKS 2155-304:the relativistic frame-dragging effect, the binary black hole model and the jet precession model.
文献关键词：
中图分类号：
作者姓名：
Qi Zheng;Xue-Guang Zhang;Qi-Rong Yuan
作者机构：
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
文献出处：
引用格式：
[1]Qi Zheng;Xue-Guang Zhang;Qi-Rong Yuan-.About 300 days Optical Quasi-periodic Oscillations in the Long-term Light Curves of the Blazar PKS 2155-304)[J].天文和天体物理学研究,2022(08):284-293
A类：
Catalina,Supernovae,QPOs,blazar,periodogram,GLSP,redfit
B类：
About,days,Optical,Quasi,Oscillations,Long,Light,Curves,Blazar,PKS,Based,long,light,curves,collected,from,Sky,Survey,CSS,All,Automated,ASAS,SN,optical,quasi,oscillations,about,be,well,determined,known,through,four,different,methods,generalized,Lomb,Scargle,weighted,wavelet,transform,technique,epoch,folded,significance,level,periodicity,higher,than,false,alarm,probability,provided,confidence,after,considering,effects,noise,continuous,autoregressive,process,created,artificial,detecting,fake,lower,consistent,reported,literature,Moreover,three,possible,models,are,discussed,explain,relativistic,frame,dragging,binary,black,hole,jet,precession
AB值：
0.484023
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