Optical and γ-ray variability analysis of BL Lacertae object TXS 1902+556

doi:10.1093/mnras/stae2285

YNAO OpenIR > 星系类星体研究组

	Optical and γ-ray variability analysis of BL Lacertae object TXS 1902+556
	Li, Huai-Zhen 1; Qin, Long-Hua 1; Gong, Yun-Lu 2; Liu, Fen 3; Guo, Di-Fu 3; Gao, Quan-Gui 1; Yi, Ting-Feng 4; Liu HT(刘洪涛)5,6,7
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2024-10-16
卷号	534 期号:3 页码:2986-2997
DOI	10.1093/mnras/stae2285
产权排序	第5完成单位
收录类别	SCI ; EI
关键词	radiation mechanisms: non-thermal galaxies: individual: (TXS 1902+556) galaxies: jets
摘要	The variability data for the BL Lacertae object TXS 1902+556 in the optical and gamma-ray wavebands were obtained from the 0.76-m Katzman Automatic Imaging Telescope and the Fermi Large Area Telescope (Fermi-LAT), covering periods of 14.4 and 14.7 yr, respectively. The variability properties were systematically analysed, with particular emphasis on the first comprehensive investigation of radiation variation in the optical waveband. Four well-established techniques were employed for this purpose: the Lomb-Scargle periodogram, REDFIT program, Jurkevich method, and discrete correlation function (DCF) approach. The optical waveband exhibits quasi-periodic oscillations (QPO) with a time-scale of PO=276.8 +/- 6.1 d at a significance level 3.87 sigma, while the gamma-ray waveband does not exhibit any significant periodicity. However, it should be noted that the QPO time-scale is consistent with the Sun-gaps in the optical light curve within 2 sigma uncertainties. The optical QPO behaviour is most likely attributed to the helical motion of the jet driven by the orbital motion in a supermassive black hole binary system. Moreover, we have provided an explanation for the absence of QPO in the gamma-ray light curves. Furthermore, utilizing the DCF method, a weak correlation between the variability in the optical and gamma-ray wavebands was observed, suggesting that the emission of TXS 1902+556 may be generated through a combination of synchrotron self-Compton (SSC) and external Compton (EC) processes, or a leptonic-hadronic hybrid process.
资助项目	National Natural Science Foundation of China[12063005]; National Natural Science Foundation of China[12063006]; National Natural Science Foundation of China[12373018]; Young and Middle-aged Discipline and Technology Leaders Reserve Talents in Yunnan Province[202405AC350114]; Program for Innovative Research Team (in Science and Technology) in University of Yunnan Province (IRTSTYN); Hundred Talents Program of Yuxi (grant 2019)
项目资助者	National Natural Science Foundation of China[12063005, 12063006, 12373018] ; Young and Middle-aged Discipline and Technology Leaders Reserve Talents in Yunnan Province[202405AC350114] ; Program for Innovative Research Team (in Science and Technology) in University of Yunnan Province (IRTSTYN) ; Hundred Talents Program of Yuxi (grant 2019)
语种	英语
学科领域	天文学 ; 星系与宇宙学
文章类型	Article
出版者	OXFORD UNIV PRESS
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN	0035-8711
URL	查看原文
WOS记录号	WOS:001334244400004
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	QUASI-PERIODIC OSCILLATION ; ACTIVE GALACTIC NUCLEI ; SHORT-TERM VARIABILITY ; BLAZAR S5 0716+714 ; BLACK-HOLE BINARY ; LIGHT-CURVE ; X-RAY ; INTRADAY VARIABILITY ; HELICAL JETS ; 3C 66A
EI入藏号	20244517307309
EI主题词	Gamma rays
EI分类号	1301.1.3 - 1301.1.4 - 1301.2.1 - 1301.2.1.1 - 1301.2.1.1.1 - 1301.2.1.1.2 - 1301.2.2 - 1302 - 741.1/Optics - 942.1 Electric and Electronic Instruments
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/114a53/27646
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.Department of Physics, Yuxi Normal University, Yuxi 653100, Yunnan, People’s Republic of China; 2.Department of Astronomy, Yunnan University, Kunming 650091, Yunnan, People’s Republic of China; 3.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; 4.Department of Physics, Yunan Normal University, Kunming 650092, Yunnan, People’s Republic of China; 5.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, Yunnan, People’s Republic of China; 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, Yunnan, People’s Republic of China; 7.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
推荐引用方式 GB/T 7714	Li, Huai-Zhen,Qin, Long-Hua,Gong, Yun-Lu,et al. Optical and γ-ray variability analysis of BL Lacertae object TXS 1902+556[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,534(3):2986-2997.
APA	Li, Huai-Zhen.,Qin, Long-Hua.,Gong, Yun-Lu.,Liu, Fen.,Guo, Di-Fu.,...&刘洪涛.(2024).Optical and γ-ray variability analysis of BL Lacertae object TXS 1902+556.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,534(3),2986-2997.
MLA	Li, Huai-Zhen,et al."Optical and γ-ray variability analysis of BL Lacertae object TXS 1902+556".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 534.3(2024):2986-2997.

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