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Searching for Quasiperiodic Modulations in gamma-Ray Active Galactic Nuclei
Zhang, Peng-fei1,2; Yan, Da-hai3,4; Zhou, Jia-neng5; Wang, Jian-cheng3,4; Zhang, Li1
2020-03-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume891Issue:2Pages:7
Corresponding AuthorZhang, Peng-fei(zhangpengfei@ynu.edu.cn)
AbstractWe 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.
Keywordjets active galactic nuclei blazars Gamma-rays
DOI10.3847/1538-4357/ab71fe
WOS KeywordX-RAY ; AREA TELESCOPE ; VARIABILITY ; EMISSION ; OBJECTS ; MODEL ; JET
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000521381800001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35816
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, Peng-fei
Affiliation1.Yunnan Univ, Sch Phys & Astron, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
4.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China
5.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Peng-fei,Yan, Da-hai,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, Da-hai,Zhou, Jia-neng,Wang, Jian-cheng,&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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