论文标题
她X-1的回旋线线的时间演变；详细的统计分析，包括新的Astrosat数据
Time Evolution Of Cyclotron Line of Her X-1; A Detailed StatisticalAnalysis Including New ASTROSAT Data
论文作者
论文摘要
已经观察并监测了X-1的X射线频谱中的Cyclotron系列特征，并监测了三十年以上。在1995 - 2014年期间，线能表现出缓慢的世俗衰落，此后可能发生逆转（未得到证实）。最近的工作表明，线能的时间演变可以建模为较早下降后直到MJD 55400（$ \ pm200）$的扁平化。在这项工作中，我们在早期数据的背景下介绍了Astrosat观察结果的结果，并通过详细研究时间和通量依赖性提供了共同的解释。我们发现，线能的变化不支持向上趋势，但与较早减少后报告的扁平趋势是一致的，直到MJD $ 54487^{+515} _ { - 469} $。
The cyclotron line feature in the X-ray spectrum of the accretion powered pulsar Her X-1 has been observed and monitored for over three decades. The line energy exhibited a slow secular decline over the period 1995-2014, with a possible (not confirmed) indication of a reversal thereafter. Recent works have shown that the temporal evolution of the line energy may be modelled as a flattening after an earlier decrease until MJD 55400 ($\pm200)$. In this work, we present the results of ASTROSAT observations in the context of earlier data and offer a common interpretation through a detailed study of temporal and flux dependence. We find that the variation of the line energy does not support an upward trend but is consistent with the reported flattening after an earlier decrease until MJD $54487^{+515}_{-469}$.
