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COLOR BEHAVIOR OF BL LACERTAE OBJECT OJ 287 DURING AN OPTICAL OUTBURST
Dai, Yan1; Wu, Jianghua2; Zhu, Zong-Hong1; Zhou, Xu2; Ma, Jun2
2011-02-01
发表期刊ASTRONOMICAL JOURNAL
卷号141期号:2
摘要This paper studies the color behavior of the BL Lac object OJ 287 during an optical outburst. Upon revisiting the data from the OJ 94 monitoring project, and from an analysis of the data obtained with the 60/90 cm Schmidt Telescope of NAOC, we found a bluer-when-brighter chromatism in this object. The amplitude of variation tends to decrease with frequency. These results are consistent with the shock-in-jet model. We ran some simulations and confirmed that both amplitude difference and time delay between variations at different wavelengths can result in the bluer-when-brighter phenomenon. Our observations confirmed that OJ 287 underwent a double-peaked outburst about 12 years after 1996, which provides further evidence for the binary black hole model in this object.
关键词Bl Lacertae Objects: Individual (Oj 287) Galaxies: Active Galaxies: Photometry
DOI10.1088/0004-6256/141/2/65
收录类别SCI
语种英语
WOS记录号WOS:000286186100037
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8067
专题光学天文研究部
作者单位1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
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Dai, Yan,Wu, Jianghua,Zhu, Zong-Hong,et al. COLOR BEHAVIOR OF BL LACERTAE OBJECT OJ 287 DURING AN OPTICAL OUTBURST[J]. ASTRONOMICAL JOURNAL,2011,141(2).
APA Dai, Yan,Wu, Jianghua,Zhu, Zong-Hong,Zhou, Xu,&Ma, Jun.(2011).COLOR BEHAVIOR OF BL LACERTAE OBJECT OJ 287 DURING AN OPTICAL OUTBURST.ASTRONOMICAL JOURNAL,141(2).
MLA Dai, Yan,et al."COLOR BEHAVIOR OF BL LACERTAE OBJECT OJ 287 DURING AN OPTICAL OUTBURST".ASTRONOMICAL JOURNAL 141.2(2011).
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