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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)
发表期刊ASTROPHYSICAL JOURNAL
2017-07-10
卷号843期号:2
DOI10.3847/1538-4357/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
ISSN0004-637X
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
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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
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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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