Spectral behavior of Hercules X-1 - Its long-term variability and pulse phase spectroscopy
Spectral behavior of Hercules X-1 - Its long-term variability and pulse phase spectroscopy
复制标题
Hercules X-1 的光谱行为 - 其长期变异性和脉冲相位光谱
DOI：
10.1086/168272
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
R. Rothschild
中科院分区：
文献类型：
--
作者：
Y. Soong;D. Gruber;L. Peterson;R. Rothschild
给出了 HEAO 1 获得的宽能带 Her X-1 光谱的分析结果。来自 13 个定向观测的数据涵盖了 1978 年 2 月、8 月和 9 月的三个 35 天的周期。脉冲相位平均光谱在主开启状态期间没有显示出任何明显的变化，除了总体强度。另一方面，脉冲相位分辨频谱在每个主导通状态指向中显示出中等强度的相位依赖性。这可能意味着发射区域的方向在每月的时间范围内不会发生变化，但该区域的几何形状可能会随着时间而变化。 27 参考文献
Results are presented of the analysis of the broad-energy-band Her X-1 spectra obtained by HEAO 1. Data from 13 pointed observations covered three 35-day cycles in February, August, and September of 1978. The pulse phase-averaged spectrum did not show any apparent variation during the main-on state, except for the overall intensity. The pulse phase-resolved spectrum, on the other hand, showed a moderately strong phase dependence in each of the main-on state pointings. This may imply that the orientation of the emission region is not changing on a monthly time frame, but the geometry of that region may evolve with time. 27 refs.