论文标题
X射线二进制LS I +61°303的无线电/X射线相关性和可变性
Radio/X-ray correlations and variability in the X-ray binary LS I +61°303
论文作者
论文摘要
高质量X射线二进制LS I +61°303在其无线电和X射线排放中表现出可变性，范围从分钟到小时。在如此短的时间范围内，这两个来源的这两种排放之间的可能相关性知之甚少，这可能会为它们的起源提供提示。在这里，我们使用同时使用X射线和无线电监控来研究这些排放之间的关系。我们使用弧形的Microkelvin Imager大型阵列望远镜（在两个频带13-15.5和15.5-18 GHz）上提出了新的无线电观察。我们还描述了使用XMM-Newton望远镜进行的新的X射线观测值。这些X射线和无线电观测值重叠了五个小时。我们首次发现无线电和X射线排放量高达81％，其几个百分比可变性将高达40％的变异性相关。我们讨论了可能产生观察到的相关性和可变性的物理场景，而LS I +61°303的X射线发射。
The high-mass X-ray binary LS I +61°303 exhibits variability in its radio and X-ray emissions, ranging from minute to hour time-scales. At such short time-scales, not much is known about the possible correlations between these two emissions from this source, which might offer hints to their origin. Here, we study the relationship between these emissions using simultaneous X-ray and radio monitoring. We present new radio observations using the Arcminute Microkelvin Imager Large Array telescope at two frequency bands, 13-15.5 and 15.5-18 GHz. We also describe new X-ray observations performed using the XMM-Newton telescope. These X-ray and radio observations overlapped for five hours. We find for the first time that the radio and X-ray emission are correlated up to 81 per cent with their few percent variability correlated up to 40 per cent. We discuss possible physical scenarios that produces the observed correlations and variability in the radio and X-ray emission of LS I +61°303.
