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Searching for Quasiperiodic Modulations in gamma-Ray Active Galactic Nuclei
Zhang, Peng-fei1,2; Yan DH(闫大海)3,4; Zhou, Jia-neng5; Wang JC(王建成)3,4; Zhang, Li1
Source PublicationASTROPHYSICAL JOURNAL
2020-03-10
Volume891Issue:2Pages:7
DOI10.3847/1538-4357/ab71fe
Contribution Rank第3完成单位
Indexed BySCI
Keywordjets active galactic nuclei blazars Gamma-rays
Abstract

We perform a systematic search of quasiperiodic variabilities in gamma-ray active galactic nuclei in the third Fermi Large Area Telescope source catalog (3FGL). We employ two techniques, Lomb-Scargle Periodogram and Weighted Wavelet Z-transform, to obtain power spectra of gamma-ray light curves covering from 2008 August to 2016 December. The results show that besides several objects that have been reported in previous works, an additional source, the flat spectrum radio quasars PKS 0601-70 has a possible quasiperiodic variability of 450 days in its gamma-ray light curves with the significance of >3 sigma. The physical implications of our findings are discussed.

Funding ProjectNational Key R&D Program of China[2018YFA0404204] ; National Natural Science Foundation of China[NSFC-U1738124] ; National Natural Science Foundation of China[NSFC-11803081] ; National Natural Science Foundation of China[NSFC-11661161010] ; joint foundation of Department of Science and Technology of Yunnan Province and Yunnan University[2018FY001(-003)] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association
Funding OrganizationNational Key R&D Program of China[2018YFA0404204] ; National Natural Science Foundation of China[NSFC-U1738124, NSFC-11803081, NSFC-11661161010] ; joint foundation of Department of Science and Technology of Yunnan Province and Yunnan University[2018FY001(-003)] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000521381800001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordX-RAY ; AREA TELESCOPE ; VARIABILITY ; EMISSION ; OBJECTS ; MODEL ; JET
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23009
Collection高能天体物理研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorZhang, Peng-fei
Affiliation1.Department of Astronomy, School of Physics and Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China
2.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China
5.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China
Recommended Citation
GB/T 7714
Zhang, Peng-fei,Yan DH,Zhou, Jia-neng,et al. Searching for Quasiperiodic Modulations in gamma-Ray Active Galactic Nuclei[J]. ASTROPHYSICAL JOURNAL,2020,891(2):7.
APA Zhang, Peng-fei,Yan DH,Zhou, Jia-neng,Wang JC,&Zhang, Li.(2020).Searching for Quasiperiodic Modulations in gamma-Ray Active Galactic Nuclei.ASTROPHYSICAL JOURNAL,891(2),7.
MLA Zhang, Peng-fei,et al."Searching for Quasiperiodic Modulations in gamma-Ray Active Galactic Nuclei".ASTROPHYSICAL JOURNAL 891.2(2020):7.
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