Multicolour optical variability monitoring of blazars with high time resolution

doi:10.1093/mnras/stad409

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	Multicolour optical variability monitoring of blazars with high time resolution
	Chang, X.6; Yi, T. F.4,5; Xiong DR(熊定荣)3; Liu, C. X.6; Yang, X.2,4; Li, H. Z.1; Gong, Y. L.6; Na, W. W.1; Li, Y.5; Chen, Z. H.5
刊名	Monthly Notices of the Royal Astronomical Society
	2023-04-01
卷号	520 期号:3 页码:4118-4133
关键词	BL Lacertae objects: individual (OJ 287, ON 231, 1ES 1426+42.8, 1E 1458.8 + 2249, OT 546, BL Lacertae) galaxies: photometry quasars: individual (3C 279, PKS 1510089)
ISSN号	0035-8711
DOI	10.1093/mnras/stad409
产权排序	第4完成单位
文献子类	Journal article (JA)
英文摘要	We carried out a high time-resolution, multicolour optical observing campaign for eight gamma-ray detected blazars during 2010–2020. We analyse flux variations, correlations between magnitudes and colours on different time-scales. Intraday variability is detected in all eight sources of our sample. A bluer-when-brighter (BWB) chromatic trend is dominant on intraday time-scales. On the short time-scales, the BWB trend only shows up in ON 231, 3C 279, BL Lacertae, and 1E 1458.8 + 2249. There is a BWB trend in 3C 279 on the long time-scale. We estimate the upper limits of black hole mass for three blazars (i.e. ON 321, 1ES 1426 + 42.8, PKS 1510-089) using variability time-scales. On 2010 April 13, a potential quasi-periodic oscillation (QPO) with the period of P = 48.67 ± 13.90 min is found in 1ES 1426 + 42.8. The light curve on 2021 March 16 further shows the existence of the QPO phenomenon. The QPO in this target deserves further observation and confirmation. © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
学科主题	天文学 ; 星系与宇宙学
URL标识	查看原文
资助项目	National Natural Science Foundation of China[11703078] ; National Natural Science Foundation of China[11863007] ; National Natural Science Foundation of China[12063005] ; National Natural Science Foundation of China[12063007]
语种	英语
出版者	Oxford University Press
资助机构	National Natural Science Foundation of China[11703078, 11863007, 12063005, 12063007]
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/26028]
专题	云南天文台_丽江天文观测站（南方基地）
作者单位	1.Physics Department, Yuxi Normal University, Yuxi, 653100, China 2.GXU-NAOC Center for Astrophysics and Space Sciences, Department of Physics, Guangxi University, Nanning, 530004, China; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, China; 4.Guangxi Key Laboratory for the Relativistic Astrophysics, Nanning, 530004, China; 5.Key Laboratory of Colleges and Universities in Yunnan Province for High-energy Astrophysics, Department of Physics, Yunnan Normal University, Kunming, 650500, China; 6.South-Western Institute for Astronomy Research, Yunnan University, Kunming, 650500, China;
推荐引用方式 GB/T 7714	Chang, X.,Yi, T. F.,Xiong DR,et al. Multicolour optical variability monitoring of blazars with high time resolution[J]. Monthly Notices of the Royal Astronomical Society,2023,520(3):4118-4133.
APA	Chang, X..,Yi, T. F..,Xiong DR.,Liu, C. X..,Yang, X..,...&Mao, L. S..(2023).Multicolour optical variability monitoring of blazars with high time resolution.Monthly Notices of the Royal Astronomical Society,520(3),4118-4133.
MLA	Chang, X.,et al."Multicolour optical variability monitoring of blazars with high time resolution".Monthly Notices of the Royal Astronomical Society 520.3(2023):4118-4133.