Revisiting Quasi-periodic Modulation in gamma- Ray Blazar PKS 2155-304 with Fermi Pass 8 Data
文献类型：期刊论文
| 作者 | Zhang, Peng-fei1,2; Yan DH(闫大海)3,4,5 ; Liao, Neng-hui1; Wang JC(王建成)3,4,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2017-02-01 |
| 卷号 | 835期号:2 |
| 关键词 | BL Lacertae objects: individual (PKS 2155-304) galaxies: jets gamma-rays: galaxies gamma-rays: general |
| ISSN号 | 0004-637X |
| 产权排序 | 第3完成单位 |
| 通讯作者 | Zhang, Peng-fei(Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Peoples R China) |
| 英文摘要 | We examine the gamma-ray quasi-periodic variability of PKS 2155-304 with the latest publicly available Fermi-LAT Pass 8 data, which covers the years from 2008 August to 2016 October. We produce the light curves in two ways: the exposure-weighted aperture photometry and the maximum likelihood optimization. The light curves are then analyzed by using Lomb-Scargle Periodogram (LSP) and Weighted Wavelet Z-transform, and the results reveal a significant quasi-periodicity with a period of 1.74. +/- 0.13 years and a significance of similar to 4.9 sigma. The constraint of multifrequencies quasi-periodic variabilities on blazar emission model is discussed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文学 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; LARGE-AREA TELESCOPE ; BL LACERTAE OBJECTS ; TIME-SERIES ; SPACED DATA ; OSCILLATIONS ; VARIABILITY ; CURVE |
| 收录类别 | SCI |
| 原文出处 | http://stacks.iop.org/0004-637X/835/i=2/a=260?key=crossref.18741f4735d68e4fb91a5fe271024e81 |
| 语种 | 英语 |
| WOS记录号 | WOS:000401155400006 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/10065]  |
| 专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China 2.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, China 3.Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng-fei,Yan DH,Liao, Neng-hui,et al. Revisiting Quasi-periodic Modulation in gamma- Ray Blazar PKS 2155-304 with Fermi Pass 8 Data[J]. ASTROPHYSICAL JOURNAL,2017,835(2). |
| APA | Zhang, Peng-fei,Yan DH,Liao, Neng-hui,&Wang JC.(2017).Revisiting Quasi-periodic Modulation in gamma- Ray Blazar PKS 2155-304 with Fermi Pass 8 Data.ASTROPHYSICAL JOURNAL,835(2). |
| MLA | Zhang, Peng-fei,et al."Revisiting Quasi-periodic Modulation in gamma- Ray Blazar PKS 2155-304 with Fermi Pass 8 Data".ASTROPHYSICAL JOURNAL 835.2(2017). |
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来源：云南天文台
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