Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714

doi:10.3847/1538-4365/adaeb6

YNAO OpenIR > 星系类星体研究组

	Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714
	Li, Huai-Zhen 1; Guo, Di-Fu 2; Qin, Long-Hua 1; Liu, Fen 2; Liu HT(刘洪涛)3,4,5 ; Yi, Ting-Feng 6; Gao, Quan-Gui 1; Huang, Shi-Feng 7,8; Gao, Xing 9,10; Chen, Xu 2
发表期刊	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2025-03-01
卷号	277 期号:1
DOI	10.3847/1538-4365/adaeb6
产权排序	第3完成单位
收录类别	SCI
摘要	We present photometric observations of the BL Lacertae object S5 0716+714 with a temporal resolution of 120 s in the Sloan i ' and r ' bands. These observations were conducted using the Comet Search Program telescope at Xingming Observatory from 2018 December 22 to 2020 February 15, and more than 5600 effective images were obtained on each filter across 79 nights. Additionally, we compiled long-term variability data spanning 34 yr in the optical UBVRI bands. Using the power-enhanced F-test and nested ANOVA test, we found intraday variability (IDV) on 31 nights and possible IDV on 20 nights in the i ' band. Similarly, IDV was detected on 35 nights in the r ' band, while possible IDV was observed on 22 nights. The minimum variability timescale is 7.33 +/- 0.74 minutes, and the estimated black hole masses are (0.68 similar to 5.12) x 108M circle dot. The spectral variability and long-term optical light curves reveal a bluer-when-brighter trend on intraday timescales. The long-term optical flux density and spectral index exhibit periodic variability with a timescale of about 1038 days. An anticorrelation between optical flux and spectral index was observed, with a time delay of -140 days. Variability across different optical bands exhibited a strong correlation, with no discernible time lag. From the IDV, spectral variability, correlation, and time delays between different bands, we conclude that these radiation characteristics may result from the shock-in-jet model scenario.
资助项目	National Natural Science Foundation of China; Young and Middle-aged Discipline and Technology Leaders Reserve Talents in Yunnan Province[202405AC350114]; Hundred Talents Program of Yuxi
项目资助者	National Natural Science Foundation of China ; Young and Middle-aged Discipline and Technology Leaders Reserve Talents in Yunnan Province[202405AC350114] ; Hundred Talents Program of Yuxi[2019] ; [12373018] ; [12063005] ; [12063006]
语种	英语
学科领域	天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0067-0049
URL	查看原文
WOS记录号	WOS:001431400000001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	GAMMA-RAY VARIABILITY ; QUASI-PERIODIC OSCILLATIONS ; SUPERMASSIVE BLACK-HOLES ; ACTIVE GALACTIC NUCLEI ; INTRADAY VARIABILITY ; RAPID VARIABILITY ; LIGHT CURVES ; X-RAY ; EXTRAGALACTIC SOURCES ; RELATIVISTIC JETS
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/28184
专题	星系类星体研究组中国科学院天体结构与演化重点实验室
作者单位	1.Physics Department, Yuxi Normal University, Yuxi 653100, Yunnan, People's Republic of China; [email protected]; 2.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, Shandong, People's Republic of China; [email protected], [email protected]; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, Yunnan, People's Republic of China; [email protected]; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, Yunnan, People's Republic of China; 5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China; 6.Physics Department, Yunan Normal University, Kunming 650092, Yunnan, People's Republic of China; 7.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei 230026, Anhui, People's Republic of China; 8.School of Astronomy and Space Sciences, University of Science and Technology of China, Hefei 230026, Anhui, People's Republic of China; 9.Xinjiang Astronomical Observatory, 150 Science 1-Street, Urumqi 830011, Xinjiang, People's Republic of China; 10.Urumqi No.1 Senior High School, Urumqi 830002, Xinjiang, People's Republic of China
推荐引用方式 GB/T 7714	Li, Huai-Zhen,Guo, Di-Fu,Qin, Long-Hua,et al. Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,277(1).
APA	Li, Huai-Zhen.,Guo, Di-Fu.,Qin, Long-Hua.,Liu, Fen.,刘洪涛.,...&Chen, Xu.(2025).Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,277(1).
MLA	Li, Huai-Zhen,et al."Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 277.1(2025).

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