几个Blazar天体的短时标光变观测研究  

Photometric monitoring of 5 blazars

作　　者：周曙白[1] 程华 寸守林[1] 洪禅伟 

机构地区：[1]云南大学物理系,云南昆明650091 [2]丽江师范高等专科学校数理系,云南丽江674100

出　　处：《云南大学学报（自然科学版）》2010年第S1期227-232,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省科技计划资助项目(2007A026M)

摘　　要：利用云南天文台1.02m和2.4m光学望远镜2008年和2009年的观测,获得了5个Blazar天体的观测资料,通过孔径测光,对它们的短时标光变曲线进行了分析研究.结果表明,在所进行的观测夜中,3C66A,OJ248,Mrk421,1ES2344+524等4个天体无短时标光变;3C66A在观测期间处于较稳定的高态,其光学R波段的平均星等达13.8mag.平谱射电类星体PKS1510-089具有短时标光变,光变时标118min,由此估算了其中心黑洞质量.Five blazars’observational data from Yunnan Observatory in 2008 and 2009 have been obtained and photometric measurements of these data by using IRAF software package have been carried out.The results of analysis show that the variabilities occurred only in PKS 1510-089 during our observations.And we also observed the high state of 3C 66A on 2009 November 10th,its apparent magnitude was 13.8 mag.According the time scale of variabilities and theory of Kerr black hole,we estimate the black hole mass of PKS 1510-089.

关 键 词：BLAZAR天体 光变 孔径测光 

分 类 号：P145.9[天文地球—天体物理]