NAOC Open IR  > 光学天文研究部
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
Source PublicationASTRONOMICAL JOURNAL
Volume141Issue:2
AbstractThis 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.
KeywordBl Lacertae Objects: Individual (Oj 287) Galaxies: Active Galaxies: Photometry
DOI10.1088/0004-6256/141/2/65
Indexed BySCI
Language英语
WOS IDWOS:000286186100037
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8067
Collection光学天文研究部
Affiliation1.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
Recommended Citation
GB/T 7714
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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