论文标题

大力神X-1的轨道光曲线的演变为35天

The Evolution of the Orbital Light-curve of Hercules X-1 with 35-day Phase

论文作者

Wang, Yuyang, Leahy, Denis

论文摘要

大力神X-1/HZ Hercules(她的X-1/Hz她)是自上个世纪以来由多个X射线任务监控的X射线二元。有了丰富的长期观察,我们在35天周期的六个状态下,在多个能量频段的六个状态下,她提供了一组X-1/Hz的轨道曲线。这些详细说明了由中子恒星周围的旋转扭曲的积聚盘引起的变化的光曲线。在0.05 35天的间隔内分析主高(MH)状态期间的轨道光曲线。这些表明,随着35天相的增加,年生食前倾角的常规出现。从多频带的光曲线中,我们得出了光电吸收和无效的传播柱密度的时间平均轨道相的依赖性,这是35天相位的函数。低状态下的X射线光曲线与光学低状态光曲线相似,但X射线在轨道相的$ \ simeq $ 0.04至0.08。

Hercules X-1/HZ Hercules (Her X-1/HZ Her) is an X-ray binary monitored by multiple X-ray missions since last century. With the abundance of long-term observations, we present a complete set of orbital light-curves of Her X-1/HZ Her during the six states of the 35-day cycle in multiple energy bands. These illustrate in detail the changing light-curve caused by the rotating twisted-tilted accretion disc surrounding the neutron star. The orbital light-curves during Main-High (MH) state are analyzed in 0.05 35-day phase intervals. These show the regular occurrence of pre-eclipse dips which march to earlier orbital phase as 35-day phase increase. From the multi-band light-curves we derive time-average orbital phase dependence of column density for photoelectric absorption and energy-independent transmission as a function of 35-day phase. The X-ray light-curves during Low States are similar in shape to the optical Low State light-curve, but X-ray leads optical by $\simeq$0.04 to 0.08 in orbital phase.

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