论文标题
X射线积聚1a 0535+262的定时属性使用Insight-HXMT研究
Timing properties of the X-ray accreting pulsar 1A 0535+262 studied with Insight-HXMT
论文作者
论文摘要
我们使用Insight-HXMT的宽带数据报告了2020年巨型爆发的时间分析的结果。首次提出了从亚临界光度到超临界光度制度的脉冲曲线演变的分析。我们发现，观察到的脉冲轮廓表现出对能量和发光性的复杂依赖。在脉冲分数之间，在1A 0535+262的脉冲分数关系中，首次发现了环状体共振散射特征（CRSF）的浸入结构，当时在光度范围内发动了4.8 $ \ $ \ $ \ \ $ \ \ $ \ \ $ \ co^$ \ co^$ \ coper， 1.0 $ \ times 10^{38} $ erg s $^{ - 1} $。观察到的结构取决于光度，并出现在源临界光度（$ \ sim $ 6.7 $ \ times 10^{37} $ erg s $^{ - 1} $）。
We report results on the timing analysis of the 2020 giant outburst of 1A 0535+262, using broadband data from Insight-HXMT. The analysis of the pulse profile evolution from the sub-critical luminosity to super-critical luminosity regime is presented for the first time. We found that the observed pulse profile exhibits a complex dependence on both energy and luminosity.A dip structure at the energy of the cyclotron resonant scattering features (CRSFs) is found for the first time in the pulse fraction-energy relation of 1A 0535+262, when the outburst evolves in a luminosity range from 4.8 $\times 10^{37}$ erg s$^{-1}$ to 1.0 $\times 10^{38}$ erg s$^{-1}$. The observed structure is luminosity dependent and appears around the source critical luminosity ($\sim$ 6.7 $\times 10^{37}$ erg s$^{-1}$).
