论文标题
ASTROSAT的BE/X射线二进制RX J0209.6-7427中最近爆发的研究：麦哲伦桥上的新型超X射线脉冲星吗？
Study of Recent outburst in the Be/X-ray binary RX J0209.6-7427 with AstroSat: A new ultraluminous X-ray pulsar in the Magellanic Bridge?
论文作者
论文摘要
我们在2019年罕见的2019年爆发期间使用与软X射线望远镜（SXT）和大面积X射线比例计数器（LAXPC）仪器进行了观测，介绍了RX J0209.6-7427的时间和光谱研究。在0.2-10 KEV能量带中，更好的任务首次检测到具有9.29 s的脉动，正如这里所报道的，Astrosat在覆盖0.3-80 kev的宽能带上报道。脉冲星在爆发过程中表现出迅速的旋转。能量分辨的折叠脉冲轮廓是在3-80 KEV中的几个能带中产生的。据我们所知，这是第一个报告的时间和光谱特征是硬X射线中的二进制脉冲星。提示脉冲曲线用能量进化。确定脉冲星的能量光谱，并根据最佳拟合光谱值，RX J0209.6-7427的X射线光度推断为$ {1.6} \ times 10^{39} $ ergs s $^{ - 1} $。我们的时间和光谱研究表明，该来源具有麦哲伦桥上超X射线脉冲星的特征。根据当前的思想介绍和讨论结果的详细信息。
We present the timing and spectral studies of RX J0209.6-7427 during its rare 2019 outburst using observations with the Soft X-ray Telescope (SXT) and Large Area X-ray Proportional Counter (LAXPC) instruments on the AstroSat satellite. Pulsations having a periodicity of 9.29 s were detected for the first time by the NICER mission in the 0.2-10 keV energy band and, as reported here, by AstroSat over a broad energy band covering 0.3-80 keV. The pulsar exhibits a rapid spin-up during the outburst. Energy resolved folded pulse profiles are generated in several energy bands in 3-80 keV. To the best of our knowledge this is the first report of the timing and spectral characteristics of this Be binary pulsar in hard X-rays. There is suggestion of evolution of the pulse profile with energy. The energy spectrum of the pulsar is determined and from the best fit spectral values, the X-ray luminosity of RX J0209.6-7427 is inferred to be ${1.6}\times 10^{39}$ ergs s$^{-1}$. Our timing and spectral studies suggest that this source has features of an ultraluminous X-ray pulsar in the Magellanic Bridge. Details of the results are presented and discussed in terms of the current ideas.
