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Multicolor Optical Monitoring of the Quasar 3C 273 from 2005 to 2016
Xiong DR(熊定荣)1,2,3; Bai JM(白金明)1,2,3; Zhang, Haojing4; Fan, Junhui5,6; Gu, Minfeng7; Yi, Tingfeng4; Zhang, Xiong4; Xiong, Dingrong(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Peoples R China)
发表期刊ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2017-04-01
卷号229期号:2
DOI10.3847/1538-4365/aa64d2
产权排序第1完成单位
收录类别SCI
关键词Galaxies: Active Galaxies: Photometry Quasars: Individual (3c 273)
摘要We have monitored the quasar 3C 273 in the optical V, R, and I bands from 2005 to 2016. Intraday variability (IDV) is detected on seven nights. The variability amplitudes on most of the nights are less than 10%, and on four nights, more than 20%. When considering the nights with time spans > 4 hr, the duty cycle (DC) is 14.17%. Over the 12 years, the overall magnitude and color index variabilities are Delta I = 0(m).67, Delta R = 0(m).72, Delta V = 0(m).68, and Delta(V - R)= 0(m).25, respectively. The largest clear IDV has an amplitude of 42% over just 5.8 minutes, and the weakest detected IDV is 5.4% over 175 minutes. The BWB (bluer when brighter) chromatic trend is dominant for 3C 273 and appears at different flux levels on intraday timescales. The BWB trend exists for short-term timescales and intermediate-term timescales but different timescales have different correlations. There is no BWB trend for our whole time-series data sets. A significant anticorrelation between the BWB trend and length of timescales is found. Combining with V-band data from previous works, we find a possible quasi-periodicity of P = 3918 +/- 1112 days. The possible explanations for the observed variability, BWB chromatic trend, and periodicity are discussed.
项目资助者Chinese Academy of Sciences ; People's Government of Yunnan Province ; National Nature Science Foundation of China(11433004, 11663009, 11133006, 11673057, 11361140347, U1531245) ; Chinese Academy of Sciences(KJZD-EW-M06, XDB09000000) ; Key Laboratory of Yunnan Province University for Research in Astrophysics ; Chinese Western Young Scholars Program by CAS ; "Light of West China" Program by CAS ; National Science Foundation of China(U1531245, 11473054) ; Science and Technology Commission of Shanghai Municipality(14ZR1447100) ; National Aeronautics and Space Administration
语种英语
学科领域天文学
文章类型Article
ISSN0067-0049
URL查看原文
WOS记录号WOS:000398181000003
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ACTIVE GALACTIC NUCLEI ; BL LACERTAE OBJECTS ; PALEOCLIMATIC TIME-SERIES ; ACCRETION DISK MODELS ; BLAZAR S5 0716+714 ; RAY LIGHT CURVES ; X-RAY ; INTRADAY VARIABILITY ; RED-NOISE ; MULTIWAVELENGTH OBSERVATIONS
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9997
专题丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
通讯作者Xiong, Dingrong(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, P. R. China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, P. R. China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, P. R. China
4.Department of Physics, Yunnan Normal University, Kunming 650500, China
5.Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
6.Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, China
7.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China
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Xiong DR,Bai JM,Zhang, Haojing,et al. Multicolor Optical Monitoring of the Quasar 3C 273 from 2005 to 2016[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,229(2).
APA Xiong DR.,Bai JM.,Zhang, Haojing.,Fan, Junhui.,Gu, Minfeng.,...&Xiong, Dingrong.(2017).Multicolor Optical Monitoring of the Quasar 3C 273 from 2005 to 2016.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,229(2).
MLA Xiong DR,et al."Multicolor Optical Monitoring of the Quasar 3C 273 from 2005 to 2016".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 229.2(2017).
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