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Optical multi-color monitoring of OJ 287 from 2006 to 2012
Guo Q(郭倩)1,2,3,4; Xiong DR(熊定荣)1,2,3; Bai JM(白金明)1,2,3; Fan XL(范绪亮)1,2,3,4; Yi WM(易卫敏)1,2,3
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2017-08-01
Volume17Issue:8Pages:1-12
DOI10.1088/1674-4527/17/8/82
Contribution Rank第1完成单位
Indexed BySCI
KeywordBl Lacertae Objects: Individual (Oj 287) Galaxies: Active Galaxies: Photometry
Abstract

We present our opticalmulti-color monitoring of the BL Lac object OJ 287 from january 2006 to December 2012 in the V, R and I bands. A relatively active state in OJ 287 has been found over all monitored epochs, among which the variations of average magnitude in V/R/I bands were measured with Delta V = 1.956 mag, Delta R = 2.067 mag and Delta I = 2.115 mag, respectively. No reliable intraday variability is detected, but possible variability is detected on 16 nights. Their relative variation amplitudes fall into the range between 1% and 8%, with the majority between 2Y and 4%. No time lags have been detected, but strong correlations exist among light curves in the three wavebands. The bluer-when-brighter trend is dominant over intraday timescales, which supports the shock-in-jet model. When combining with additional V/R band data obtained from SMARTS and the Steward Observatory, we also find a bluer-when-brighter trend over a long-term timescale. Some possible periods of 513, 176, 36, 30, 26, 17 and 14 d are found in all time-series data sets from 2006 to 2017. Possible explanations about these periods are given.

Funding ProjectFermi Guest Investigator grant[NNX08AW56G] ; Fermi Guest Investigator grant[NNX09AU10G] ; Fermi Guest Investigator grant[NX12AO93G] ; Fermi Guest Investigator grant[NNXI5AU81G] ; Strategic Priority Research Program of the Chinese Academy of Sciences - The Emergence of Cosmological Structures[XDB09000000] ; Key Research Program of the Chinese Academy of Sciences[KJZD-EW-M06] ; NSFC[NSFC-11133006] ; NSFC[11361140347] ; Chinese Western Young Scholars Program by CAS ; Light of West China Program by CAS
Funding OrganizationFermi Guest Investigator grant[NNX08AW56G, NNX09AU10G, NNX12AO93G, NNXI5AU81G] ; Strategic Priority Research Program of the Chinese Academy of Sciences - The Emergence of Cosmological Structures[XDB09000000] ; Key Research Program of the Chinese Academy of Sciences[KJZD-EW-M06] ; NSFC[NSFC-11133006, 11361140347] ; Chinese Western Young Scholars Program by CAS ; Light of West China Program by CAS
Language英语
Subject Area天文学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
Archive Date2017-08-22
WOS IDWOS:000416068900006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE GALACTIC NUCLEI ; BL-LACERTAE OBJECTS ; INTRADAY VARIABILITY ; RADIO-QUIET ; BLAZARS ; OJ-287 ; MICROVARIABILITY ; PHOTOMETRY ; STARS ; TIMESCALES
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/11902
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorGuo Q(郭倩)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Guo Q,Xiong DR,Bai JM,et al. Optical multi-color monitoring of OJ 287 from 2006 to 2012[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(8):1-12.
APA Guo Q,Xiong DR,Bai JM,Fan XL,&Yi WM.(2017).Optical multi-color monitoring of OJ 287 from 2006 to 2012.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(8),1-12.
MLA Guo Q,et al."Optical multi-color monitoring of OJ 287 from 2006 to 2012".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.8(2017):1-12.
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