Optical Photometry of the Quasar 3C 454.3 during the Period 2006-2018 and the Long-term Periodicity Analysis

doi:10.3847/1538-4365/abd32d

	Optical Photometry of the Quasar 3C 454.3 during the Period 2006-2018 and the Long-term Periodicity Analysis
	Fan, J. H.1,2,3; Kurtanidze, S. O.4,5; Liu, Y.1,2; Kurtanidze, O. M.5,6; Nikolashvili, M. G.5; Liu, X.7 ; Zhang, L. X.1,2; Cai, J. T.1,2; Zhu, J. T.1,2; He, S. L.1,2; Yang, W. X.1,2; Yang, J. H.8; Gu, M. F.9; Luo, G. Y.10; Yuan, Y. H.1,2
	2021-03-01
Source Publication	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN	0067-0049
Volume	253 Issue:1 Pages:10
Contribution Rank	7
Abstract	In this work, we present 8523 pairs of R-band optical photometry observations for the quasar 3C 454.3 made during the period of 2006 October-2018 February on the 70 cm meniscus telescope at Abastumani Observatory, Georgia, to study its intraday variabilities (IDVs) and long-term variations, and we have come to the following results. (1) We detected 10 outbursts, a Delta R = 3.825 mag variation, and some IDVs. The IDV timescales are from 4.1 to 285 minutes, with the corresponding variability amplitude being A = 2.9%-43.67%. The amplitude increases with IDV timescale. (2) The largest variation over a 1 day timescale is Delta R = 1.38 mag. (3) The IDV timescales suggest that the emission sizes are from 8.9 x 10(13) cm to 6.20 x 10(15) cm, and the magnetic field strengths are B = 0.18-0.79 G. (4) Period analysis results show three possible long-term periods, p = 3.04 0.02 yr, p = 1.66 0.06 yr, and p = 1.20 0.03 yr in the optical light curve. We adopted the accretion disk models and the lighthouse models to period p = 3.04 0.02 yr: in the accretion disk models, the binary black holes have masses M = 1.17 x 10(9)M; in the lighthouse models, we used two boosted jet flux densities to fit the observational light curve. (5) WWZ analysis gives some short-period (high-frequency) signals associated with strong bursts (JD 2,454,302 and JD 2,454,521) with variable frequencies and lasting for the entire observation time span (11.3 yr).
Keyword	Active galactic nuclei CCD photometry Quasars
DOI	10.3847/1538-4365/abd32d
Indexed By	SCI
Language	英语
Funding Project	National Natural Science Foundation of China (NSFC)[U1531245] ; National Natural Science Foundation of China (NSFC)[U2031201] ; National Natural Science Foundation of China (NSFC)[11733001] ; National Natural Science Foundation of China (NSFC)[11873073] ; National Natural Science Foundation of China (NSFC)[U2031112] ; Guangdong Major Project of Basic and Applied Basic Research[2019B030302001] ; Natural Science Foundation of Guangdong Province[2017A030313011] ; Guangzhou University[YM2020001] ; Guangzhou University[2019GDJC-D18] ; Shota Rustaveli National Science Foundation[FR/217554/16] ; Shota Rustaveli National Science Foundation[PHDF-18-354]
WOS Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:000620957500001
Publisher	IOP PUBLISHING LTD
Funding Organization	National Natural Science Foundation of China (NSFC) ; Guangdong Major Project of Basic and Applied Basic Research ; Natural Science Foundation of Guangdong Province ; Guangzhou University ; Shota Rustaveli National Science Foundation
Citation statistics	Cited Times:45[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/3857
Collection	射电天文研究室_星系宇宙学研究团组
Corresponding Author	Fan, J. H.; Kurtanidze, S. O.
Affiliation	1.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China 2.Dept Educ Guangdong Prov, Astron Sci & Technol Res Lab, Guangzhou 510006, Peoples R China 3.Key Lab Astron Observat & Technol Guangzhou, Guangzhou 510006, Peoples R China 4.Samtskhe Javakheti State Univ, 92 Shota Rustaveli St, Akhaltsikhe, Georgia 5.Abastumani Observ, GE-0301 Mt Kanobili, Abastumani, Georgia 6.Kazan Fed Univ, Engelhardt Astron Observ, Tatarstan, Russia 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Xijiang, Peoples R China 8.Hunan Univ Arts & Sci, Coll Math & Phys Sci, Changde 415000, Peoples R China 9.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 10.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China
Recommended Citation GB/T 7714	Fan, J. H.,Kurtanidze, S. O.,Liu, Y.,et al. Optical Photometry of the Quasar 3C 454.3 during the Period 2006-2018 and the Long-term Periodicity Analysis[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2021,253(1):10.
APA	Fan, J. H..,Kurtanidze, S. O..,Liu, Y..,Kurtanidze, O. M..,Nikolashvili, M. G..,...&Yuan, Y. H..(2021).Optical Photometry of the Quasar 3C 454.3 during the Period 2006-2018 and the Long-term Periodicity Analysis.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,253(1),10.
MLA	Fan, J. H.,et al."Optical Photometry of the Quasar 3C 454.3 during the Period 2006-2018 and the Long-term Periodicity Analysis".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 253.1(2021):10.

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