Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst

doi:10.3847/1538-4357/ab22b1

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	Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst
	Zhang,Yue 9,10; Ge,MingYu 10; Song,LiMing 10; Zhang,ShuangNan 8,9,10; Qu,JinLu 10; Zhang,Shu 10; Doroshenko,Victor 6,7; Tao,Lian 10; Ji,Long 7; Güng?r,Can 10
刊名	The Astrophysical Journal
	2019-07-05
卷号	879 期号:1
关键词	accretion, accretion disks pulsars: individual (Swift J0243.6+6124) stars: distances stars: magnetic field X-rays: binaries
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab22b1
英文摘要	Abstract The recently discovered neutron star transient Swift J0243.6+6124 has been monitored by the Hard X-ray Modulation Telescope. Based on the obtained data, we investigate the broadband spectrum of the source throughout the outburst. We estimate the broadband flux of the source and search for possible cyclotron line in the broadband spectrum. However, no evidence of line-like features is found up to 150 keV. In the absence of any cyclotron line in its energy spectrum, we estimate the magnetic field of the source based on the observed spin evolution of the neutron star by applying two accretion torque models. In both cases, we get consistent results with B?～?1013 G, D?～?6 kpc and peak luminosity of >1039 erg s?1, which makes the source the first Galactic ultraluminous X-ray source hosting a neutron star.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-879-1-AB22B1
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/28761]
专题	中国科学院国家天文台
作者单位	1.School of Mathematics and Physics, Anhui JianZhu University, Hefei 230601, People’s Republic of China 2.Department of Engineering Physics, Tsinghua University, Beijing 100084, People’s Republic of China 3.Department of Physics, Tsinghua University, Beijing 100084, People’s Republic of China 4.Department of Astronomy, Beijing Normal University, Beijing 100088, People’s Republic of China 5.College of Material Science and Chemical Engineering, Hainan University, Hainan 570228, People’s Republic of China 6.Space Research Institute of the Russian Academy of Sciences, Profsoyuznaya Str. 84/32, Moscow 117997, Russia 7.Institut für Astronomie und Astrophysik, Kepler Center for Astro and Particle Physics, Universit?t Tübingen, Sand 1, D-72076 Tübingen, Germany 8.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 9.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People’s Republic of China 10.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, People’s Republic of China; zhangyue@ihep.ac.cn, songlm@ihep.ac.cn
推荐引用方式 GB/T 7714	Zhang,Yue,Ge,MingYu,Song,LiMing,et al. Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst[J]. The Astrophysical Journal,2019,879(1).
APA	Zhang,Yue.,Ge,MingYu.,Song,LiMing.,Zhang,ShuangNan.,Qu,JinLu.,...&Zou,ChangLin.(2019).Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst.The Astrophysical Journal,879(1).
MLA	Zhang,Yue,et al."Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst".The Astrophysical Journal 879.1(2019).