论文标题
Insight-HXMT的Maxi J1535-571的小波分析
Wavelet analysis of MAXI J1535-571 with Insight-HXMT
论文作者
论文摘要
在本文中，小波分析用于研究Insight-HXMT观察到的Maxi J1535-571的光谱定时性。低频准周期振荡（QPO）在九个观察结果中检测到。基于小波分析，分别分离了QPO和非QPO的时间间隔，并分析了与QPO和非QPO的相应光谱。我们发现，QPO（以下QPO频谱）的光谱比在硬中间状态（HIMS）中没有QPO（以下几个非QPO光谱）的光谱柔和。而在柔软的中间状态（SIMS）中，QPO光谱稍微困难。 QPO状态的磁盘温度在他的过程中略低，但在模拟人生期间变化较高。 QPO光谱和非QPO光谱的截止能没有显示显着差异。对于非QPO的时间间隔，磁盘与总通量的通量比高于QPO制度。我们建议在QPO和非QPO机制之间的光谱特性上存在这些差异，可以在透镜 - 刺激性进步的情况下进行解释，并且他和SIMS之间的QPO/非QPO行为的逆转可能与类型B QPO的外观/消失有关，这可能是从JET od od od od ot od od od od od ot of ot ot oes ot oes ot type b qpo的。
In this paper, wavelet analysis is used to study spectral-timing properties of MAXI J1535-571 observed by Insight-HXMT. The low-frequency quasi-periodic oscillations (QPOs) are detected in nine observations. Based on wavelet analysis, the time intervals with QPO and non-QPO are isolated separately, and the corresponding spectra with QPO and non-QPO are analyzed. We find that the spectra with QPO (hereafter QPO spectra) are softer than those without QPO (hereafter non-QPO spectra) in the hard intermediate state (HIMS). While in the soft intermediate state (SIMS), the QPO spectra are slightly harder. The disk temperature of QPO regime is slightly lower during HIMS, but becomes higher during SIMS. The cutoff energies of QPO spectra and non-QPO spectra do not show significant differences. The flux ratio of the disk to total flux is higher for the time intervals with non-QPO than that of QPO regime. We propose that these differences in the spectral properties between QPO and non-QPO regimes could be explained in the scenario of Lense-Thirring precession, and the reversal of the QPO/non-QPO behavior between HIMS and SIMS may be associated with appearance/disappearance of a type-B QPO which might origin from the precession of the jet.
