| Swift, XMM-Newton, and NuSTAR Observations of PSR J2032+4127/MT91 213 | |
Li, K. L.1; Kong, A. K. H.2,3; Tam, P. H. T.4; Hou X(侯贤)5,6,7 ; Takata, J.8; Hui, C. Y.9; Li, K. L.(Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA)
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2017-07-10 | |
| 卷号 | 843期号:2 |
| DOI | 10.3847/1538-4357/aa784e |
| 产权排序 | 第5完成单位 |
| 收录类别 | SCI |
| 关键词 | Pulsars: Individual (Psr j2032+4127) Stars: Individual (Mt91 213) X-rays: Binaries Stars: Winds Outflows |
| 摘要 | We report our recent Swift, NuSTAR, and XMM-Newton X-ray and Lijiang optical observations on PSR J2032 + 4127/MT91 213, the gamma-ray binary candidate with a period of 45-50 years. The coming periastron of the system was predicted to be in 2017 November, around which high-energy flares from keV to TeV are expected. Recent studies with Chandra and Swift X-ray observations taken in 2015/2016 showed that its X-ray emission has been brighter by a factors of similar to 10 than that before 2013, probably revealing some ongoing activities between the pulsar wind and the stellar wind. Our new Swift/XRT lightcurve shows no strong evidence of a single vigorous brightening trend, but rather several strong X-ray flares on weekly to monthly timescales with a slowly brightening baseline, namely the low state. The NuSTAR and XMM-Newton observations taken during the flaring and the low states, respectively, show a denser environment and a softer power-law index during the flaring state, implying that the pulsar wind interacted with the stronger stellar winds of the companion to produce the flares. These precursors would be crucial in studying the predicted giant outburst from this extreme gamma-ray binary during the periastron passage in late 2017. |
| 项目资助者 | Chinese Academy of Sciences ; Peoples Government of Yunnan Province ; Ministry of Science and Technology of Taiwan(105-2112-M-007-033-MY2, 105-2119-M-007-028-MY3, 106-2918-I-007-005) ; National Natural Science Foundation of China(11503078) ; National Science Foundation of China (NSFC)(11633007, 11661161010) ; NSFC grants of Chinese Government(11573010, U1631103) ; National Research Foundation of Korea(2014R1A1A2058590, 2016R1A5A1013277) |
| 语种 | 英语 |
| 学科领域 | 天文学 |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000405010600008 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | 2014 PERIASTRON PASSAGE ; GAMMA-RAY EMISSION ; B1259-63/LS 2883 ; HESS J0632+057 ; MULTIWAVELENGTH OBSERVATIONS ; BINARY NATURE ; TEV BINARY ; DISCOVERY ; PSR-B1259-63 ; PULSARS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/10151 |
| 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 | Li, K. L.(Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA) |
| 作者单位 | 1.Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA 2.Astrophysics, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UK 3.Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan 4.School of Physics and Astronomy, Sun Yat-sen University, Zhuhai 519082, China 5.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China 7.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China 8.Institute of Particle Physics and Astronomy, Huazhong University of Science and Technology, China 9.Department of Astronomy and Space Science, Chungnam National University, Daejeon, Korea |
| 推荐引用方式 GB/T 7714 | Li, K. L.,Kong, A. K. H.,Tam, P. H. T.,et al. Swift, XMM-Newton, and NuSTAR Observations of PSR J2032+4127/MT91 213[J]. ASTROPHYSICAL JOURNAL,2017,843(2). |
| APA | Li, K. L..,Kong, A. K. H..,Tam, P. H. T..,Hou X.,Takata, J..,...&Li, K. L..(2017).Swift, XMM-Newton, and NuSTAR Observations of PSR J2032+4127/MT91 213.ASTROPHYSICAL JOURNAL,843(2). |
| MLA | Li, K. L.,et al."Swift, XMM-Newton, and NuSTAR Observations of PSR J2032+4127/MT91 213".ASTROPHYSICAL JOURNAL 843.2(2017). |
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| Swift, XMM-Newton, a（525KB） | 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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