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

文献类型：期刊论文

作者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
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2021-03-01
卷号253期号:1页码:10
关键词Active galactic nuclei CCD photometry Quasars
ISSN号0067-0049
DOI10.3847/1538-4365/abd32d
产权排序7
英文摘要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).
资助项目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研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000620957500001
出版者IOP PUBLISHING LTD
资助机构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
源URL[http://ir.xao.ac.cn/handle/45760611-7/3856]  
专题星系宇宙学研究团组
通讯作者Fan, J. H.; Kurtanidze, S. O.
作者单位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
推荐引用方式
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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