NAOC Open IR
Quasi-periodic oscillations in the long-term radio light curves of the blazar AO 0235+164
Tripathi, Ashutosh1,2; Gupta, Alok C.3,4; Aller, Margo F.5; Wiita, Paul J.6; Bambi, Cosimo1,2; Aller, Hugh5; Gu, Minfeng3
2021-03-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume501Issue:4Pages:5997-6006
AbstractWe present time series analyses of three-decade long radio observations of the BL Lacertae object AO 0235+164 made at the University of Michigan Radio Astronomical Observatory operating at three central frequencies of 4.8, 8.0, and 14.5 GHz. We detected a quasi-periodic oscillation of similar to 965 d in all three frequency bands in the light curve of the effectively simultaneous observations, along with strong signals at similar to 1950, similar to 1350, and similar to 660 d. The periodicity is analysed with three methods: data-compensated discrete Fourier transform, generalized Lomb-Scargle periodogram, and Weighted Wavelet Z-transform. These methods are chosen as they have different analysis approaches toward robust measurement of claimed periodicities. The quasi-periodic oscillation at 965 +/- 50 d is found to be significant (at least 3.5 sigma) and is persistent throughout the observation for all three radio frequencies, and the others, which may be harmonics, are comparably significant in at least the 8.0 and 14.5 GHz bands. We briefly discuss plausible explanations for the origin of such long and persistent periodicity.
Keywordradiation mechanisms: non-thermal galaxies: active BL Lacertae objects: individual: AO 0235+164 galaxies: jets X-rays: galaxies
Funding OrganizationInnovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF
DOI10.1093/mnras/stab058
Language英语
Funding ProjectInnovation Program of the Shanghai Municipal Education Commission[2019-01-07-00-07-E00035] ; National Natural Science Foundation of China (NSFC)[11973019] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI)[2016VMB073] ; National Science Foundation of China[11873073] ; National Science Foundation ; NASA[NNX09AU16G] ; NASA[NNX10AP16G] ; NASA[NNX11AO13G] ; NASA[NNX13AP18G] ; University of Michigan ; NSF[AST-0607523]
Funding OrganizationInnovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF ; Innovation Program of the Shanghai Municipal Education Commission ; Innovation Program of the Shanghai Municipal Education Commission ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation ; National Science Foundation ; NASA ; NASA ; University of Michigan ; University of Michigan ; NSF ; NSF
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000637320000090
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78365
Collection中国科学院国家天文台
Corresponding AuthorBambi, Cosimo
Affiliation1.Fudan Univ, Ctr Field Theory & Particle Phys, 2005 Songhu Rd, Shanghai 200438, Peoples R China
2.Fudan Univ, Dept Phys, 2005 Songhu Rd, Shanghai 200438, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
4.Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India
5.Univ Michigan, Dept Astron, 311 West Hall, Ann Arbor, MI 48109 USA
6.Coll New Jersey, Dept Phys, POB 7718, Ewing, NJ 08628 USA
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GB/T 7714
Tripathi, Ashutosh,Gupta, Alok C.,Aller, Margo F.,et al. Quasi-periodic oscillations in the long-term radio light curves of the blazar AO 0235+164[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,501(4):5997-6006.
APA Tripathi, Ashutosh.,Gupta, Alok C..,Aller, Margo F..,Wiita, Paul J..,Bambi, Cosimo.,...&Gu, Minfeng.(2021).Quasi-periodic oscillations in the long-term radio light curves of the blazar AO 0235+164.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,501(4),5997-6006.
MLA Tripathi, Ashutosh,et al."Quasi-periodic oscillations in the long-term radio light curves of the blazar AO 0235+164".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 501.4(2021):5997-6006.
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