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29 March 2024
 
  » arxiv » 1906.1938

 Article overview


Insight-HXMT observations of Swift J0243.6+6124 during its 2017-2018 outburst
Yue Zhang ; Mingyu Ge ; Liming Song ; Shuangnan Zhang ; Jinlu Qu ; Shu Zhang ; Victor Doroshenko ; Lian Tao ; Long Ji ; Can GÜNgÖR ; Andrea Santangelo ; Changsheng Shi ; Zhi Chang ; Gang Chen ; Li Chen ; Tianxiang Chen ; Yong Chen ; Yibao Chen ; Wei Cui ; Weiwei Cui ; Jingkang Deng ; Yongwei Dong ; Yuanyuan Du ; Minxue Fu ; Guanhua Gao ; He Gao ; Min Gao ; Yudong Gu ; Ju Guan ; Chengcheng Guo ; Dawei Han ; Wei Hu ; Yue Huang ; Jia Huo ; Shumei Jia ; Luhua Jiang ; Weichun Jiang ; Jing Jin ; Yongjie Jin ; Bing Li ; Chengkui Li ; Gang Li ; Maoshun Li ; Wei Li ; Xian Li ; Xiaobo Li ; Xufang Li ; Yanguo Li ; Zijian Li ; Zhengwei Li ; Xiaohua Liang ; Jinyuan Liao ; Congzhan Liu ; Guoqing Liu ; Hongwei Liu ; Shaozhen Liu ; Xiaojing Liu ; Yuan Liu ; Yinong Liu ; Bo Lu ; Xuefeng Lu ; Tao Luo ; Xiang Ma ; Bin Meng ; Yi Nang ; Jianyin Nie ; Ge Ou ; Na Sai ; Liang Sun ; Ying Tan ; Wenhui Tao ; Youli Tuo ; Guofeng Wang ; Huanyu Wang ; Juan Wang ; Wenshuai Wang ; Yusa Wang ; Xiangyang Wen ; Bobing Wu ; Mei Wu ; Guangcheng Xiao ; Shaolin Xiong ; He Xu ; Yupeng Xu ; Linli Yan ; Jiawei Yang ; Sheng Yang ; Yanji Yang ; Aimei Zhang ; Chunlei Zhang ; Chengmo Zhang ; Fan Zhang ; Hongmei Zhang ; Juan Zhang ; Tong Zhang ; Wei Zhang ; Wanchang Zhang ; Wenzhao Zhang ; Yi Zhang ; Yifei Zhang ; Yongjie Zhang ; Zhao Zhang ; Ziliang Zhang ; Haisheng Zhao ; Jianling Zhao ; Xiaofan Zhao ; Shijie Zheng ; Yue Zhu ; Yuxuan Zhu ; Changlin Zou ;
Date 5 Jun 2019
AbstractThe recently discovered neutron star transient Swift J0243.6+6124 has been monitored by {it the Hard X-ray Modulation Telescope} ({it Insight- m HXMT). 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. No evidence of line-like features is, however, found up to $ m 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 $B m sim 10^{13}~G$, $D m sim 6~kpc$ and peak luminosity of $ m >10^{39}~erg~s^{-1}$ which makes the source the first Galactic ultraluminous X-ray source hosting a neutron star.
Source arXiv, 1906.1938
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