| A gamma-ray Quasi-periodic Modulation in the Blazar PKS 0301-243? | |
Zhang, Peng-Fei1,2; Yan DH(闫大海)3,4,5 ; Zhou, Jia-Neng6; Fan, Yi-Zhong1; Wang JC(王建成)3,4,5; Zhang, Li2
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2017-08-10 | |
| 卷号 | 845期号:1 |
| DOI | 10.3847/1538-4357/aa7ecd |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 关键词 | Bl Lacertae Objects: Individual (Pks 0301-243) Galaxies: Jets Gamma-rays: Galaxies Gamma-rays: General |
| 摘要 | We report a nominally high-confidence gamma-ray quasi-periodic modulation in the blazar PKS 0301-243. For this target, we analyze its Fermi-LAT Pass 8 data from 2008 August to 2017 May. Two techniques, i.e., maximum likelihood optimization and exposure-weighted aperture photometry, are used to build the gamma-ray light curves. Then, both the Lomb-Scargle periodogram and the weighted wavelet Z-transform are applied to the light curves to search for period signals. A quasi-periodicity with a period of 2.1 +/- 0.3 yr appears at the significance level of similar to 5 sigma, although it should be noted that this putative quasi-period variability is seen in a data set that is barely four times longer. We speculate that this gamma-ray quasi-periodic modulation may be evidence of a binary supermassive black hole. |
| 资助项目 | 973 Program of China[2013CB837000] ; National Natural Science Foundation of China[NSFC-11433004] ; National Natural Science Foundation of China[NSFC-11525313] ; National Natural Science Foundation of China[NSFC-11573060] ; National Natural Science Foundation of China[NSFC-11573026] ; National Natural Science Foundation of China[NSFC-11661161010] ; Key Laboratory of Astroparticle Physics of Yunnan Province[2016DG006] ; CAS "Light of West China" Program |
| 项目资助者 | 973 Program of China(2013CB837000) ; National Natural Science Foundation of China(NSFC-11433004, NSFC-11525313, NSFC-11573060, NSFC-11573026, NSFC-11661161010) ; Key Laboratory of Astroparticle Physics of Yunnan Province(2016DG006) ; CAS |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 |
| 文章类型 | Article |
| 出版者 | IOP PUBLISHING LTD |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000407627500007 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | BL LACERTAE OBJECTS ; SAMPLED TIME-SERIES ; PHYSICAL-PROPERTIES ; FERMI BLAZARS ; SPACED DATA ; VARIABILITY ; OSCILLATION ; CURVE ; JETS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/11926 |
| 专题 | 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 |
| 通讯作者 | Zhang, Peng-Fei |
| 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 6.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng-Fei,Yan DH,Zhou, Jia-Neng,et al. A gamma-ray Quasi-periodic Modulation in the Blazar PKS 0301-243?[J]. ASTROPHYSICAL JOURNAL,2017,845(1). |
| APA | Zhang, Peng-Fei,Yan DH,Zhou, Jia-Neng,Fan, Yi-Zhong,Wang JC,&Zhang, Li.(2017).A gamma-ray Quasi-periodic Modulation in the Blazar PKS 0301-243?.ASTROPHYSICAL JOURNAL,845(1). |
| MLA | Zhang, Peng-Fei,et al."A gamma-ray Quasi-periodic Modulation in the Blazar PKS 0301-243?".ASTROPHYSICAL JOURNAL 845.1(2017). |
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| A γ-ray Quasi-period（1383KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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