Evidence of Quasi-periodic Oscillation in the Optical Band of the Blazar 1ES 1959+650

作     者：Fu-Tong Dong Ning Gai Yanke Tang Yi-Fan Wang Ting-Feng Yi Fu-Tong Dong;Ning Gai;Yanke Tang;Yi-Fan Wang;Ting-Feng Yi

作者机构：College of Physics and Electronic InformationDezhou UniversityDezhou 253023China Technological Vocational College of DezhouDezhou 251200China Key Laboratory of Colleges and Universities in Yunnan Province for High-energy AstrophysicsDepartment of PhysicsYunnan Normal UniversityKunming 650500China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2022年第22卷第11期

页      面：14-20页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported by National Natural Science Foundation of China(Grant No.U1931106) Shandong Provincial Natural Science Foundation of China(Grant No.ZR2019YQ03) Project of Shandong Qing Chuang Science and Technology Plan(Grant No.2019KJJ006) 

主　　题：galaxies:active methods:numerical galaxies:individual(1ES 1959+650) 

摘      要：We analyzed the optical monitoring data in the R band of Te V blazar 1ES 1959+650 from 2002 to 2018,and provided evidence of a quasi-periodic oscillation in this *** light curve shows a stable and persistent periodicity at~540 days,detected by the Lomb–Scargle periodogram,Jurkevich and weighted wavelet z-transform *** red noise power spectrum was estimated using the PSRESP method,and this period was found to be at3σsignificance *** are also two possible periodicities at~268 and~1100 days detected by all three ***,their significance levels are relatively low,and thus these two periods cannot be verified by the present *** discuss several possible physical models that could explain the periodic variability in this object.