The long-term optical behavior of BL Lac object S5 0716+714  

作　　者：ZHANG BingKai DAI BenZhong ZHANG Li CAO Zhen 

机构地区：[1]Department of Physics,Fuyang Normal College,Fuyang 236041,China [2]Department of Physics,Yunnan University,Kunming 650091,China [3]Key Laboratory of Particle and Astrophysics,Institute of High Energy Physics,CAS,Beijing 100049,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第7期1370-1374,共5页中国科学:物理学、力学、天文学(英文版)

基　　金：supported by the Scientific Research Foundation of Fuyang Normal College;the National Natural Science Foundation of China (Grant No. 10975145);partially by Natural Science Foundation of Yunnan Province (Grant No.2007A026M)

摘　　要：BL Lac object S5 0716+714 is a well-studied object.In this paper,the available optical(BVRI) data of this source are compiled,and the B-,V-,R-and I-band light curves are constructed.Each of them is analyzed by means of the discrete correlation function(DCF) method,the structure function(SF) method and the z-transformed discrete correlation function(ZDCF) method.The results imply that there is a possible periodic variation of 1211 days in each passband light curve.The source varies violently and complicatedly,and exhibits a brightening trend in the light curves.BL Lac object S5 0716+714 is a well-studied object.In this paper,the available optical(BVRI) data of this source are compiled,and the B-,V-,R-and I-band light curves are constructed.Each of them is analyzed by means of the discrete correlation function(DCF) method,the structure function(SF) method and the z-transformed discrete correlation function(ZDCF) method.The results imply that there is a possible periodic variation of 1211 days in each passband light curve.The source varies violently and complicatedly,and exhibits a brightening trend in the light curves.

关 键 词：BL Lacertae objects S50716+714 optical behavior 

分 类 号：P142[天文地球—天体物理]