Multicolor Optical Monitoring of the Quasar 3C 273 from 2005 to 2016
文献类型：期刊论文
| 作者 | 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
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| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
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| 出版日期 | 2017-04-01 |
| 卷号 | 229期号:2 |
| 关键词 | galaxies: active galaxies: photometry quasars: individual (3C 273) |
| ISSN号 | 0067-0049 |
| 产权排序 | 第1完成单位 |
| 通讯作者 | Xiong, Dingrong(Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Peoples R China) |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文学 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | 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 |
| 收录类别 | SCI |
| 原文出处 | http://stacks.iop.org/0067-0049/229/i=2/a=21?key=crossref.672b08bccd9923cc707c77fd6f1d5ac4 |
| 语种 | 英语 |
| WOS记录号 | WOS:000398181000003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9997]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） 云南天文台_中国科学院天体结构与演化重点实验室 |
| 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 |
| 推荐引用方式 GB/T 7714 | 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.,...&Zhang, Xiong.(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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来源：云南天文台
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