论文标题
用Astrosat/Laxpc从X射线二进制4U 1323-62中检测热核X射线突发和浸入
Detection of the thermonuclear X-ray bursts and dips from the X-ray binary 4U 1323-62 with AstroSat/LAXPC
论文作者
论文摘要
使用来自\ textit {astrosat}卫星上的大面积X射线比例计数器（LAXPC）的数据，我们观察到了低质量X射线二进制二进制中子星4U 1323-62的1型热核X射线突发。在\ textit {astrosat}卫星的性能验证阶段进行了4U 1323-62的观察结果，显示了六个热核X射线爆发，总有效暴露于$ \ sim $ 49.5 ks $ \ sim $ 49.5 ks，大约两天。检测到的热核突发的复发时间符合源$ \ sim $ 9400秒的轨道周期。此外，4U 1323-62的光曲线揭示了存在两个凹陷。我们介绍了在所有六个X射线爆发过程中进行的时间分辨光谱的结果，还报告了以$ \ sim $ 1 Hz为$ \ sim $ 1 Hz的已知低频准周期振荡（LFQPO）的检测。但是，找不到任何kilohertz QPO的证据。我们在不同的能量范围内显示了突发曲线。假设距离为10 kpc，我们观察到平均通量$ \ sim $ 1.8 $ \ times $ $ 10^{ - 9} $ erg $ cm^2 $ $ $ s^{ - 1} $。发现黑体的半径与黑体温度和爆发的黑体通量高度一致。
Using data from the Large Area X-ray Proportional Counter (LAXPC) on the \textit{AstroSat} satellite, we observed the Type-1 thermonuclear X-ray bursts from the Low Mass X-ray Binary Neutron Star 4U 1323-62. The observations of 4U 1323-62 were carried out during the performance verification phase of the \textit{AstroSat} satellite showed six thermonuclear X-ray bursts in a total effective exposure of $\sim$ 49.5 ks for about two consecutive days. Recurrence time of the detected thermonuclear bursts is in accordance with the orbital period of the source $\sim$ 9400 seconds. Moreover, the light curve of 4U 1323-62 revealed the presence of two dips. We presented the results from time-resolved spectroscopy performed during all of the six X-ray bursts and also report the detection of a known low frequency Quasi-periodic oscillation (LFQPO) at $\sim$ 1 Hz, from the source. However, any evidence of kilohertz QPO was not found. We have shown the burst profile at different energy ranges. Assuming a distance of 10 kpc, we observed a mean flux $\sim$ 1.8 $\times$ $10^{-9}$ erg $cm^2$ $s^{-1}$. The radius of the blackbody is found to be highly consistent with the blackbody temperature and the blackbody flux of the bursts.
