论文标题
将IGR J17091-3624的非线性时间序列和光谱特性相关联：它是否类似于GRS 1915+105？
Correlating nonlinear time series and spectral properties of IGR J17091-3624: Is it similar to GRS 1915+105?
论文作者
论文摘要
我们探讨了IGR J17091-3624在GRS 1915+105的基础行为中的IGR J17091-3624的非线性特性，遵循相关积分方法。我们发现，尽管已知后者揭示了分形（甚至是混乱）和随机行为的结合，但根据其时间阶层，前者大多显示出随机行为。因此，尽管有几种观察结果认为IGR J17091-3624与GRS 1915+105相似，它们之间具有常见的时间类别，但基本的非线性时间序列分析提供了不同的方式。然而，IGR J17091-3624的Poisson噪声对$ rms $ $变化的值很高，认为它们是泊松噪声的主导，因此可能会导致抑制非线性角色（如果有的话）。确实，与GRS 1915+105相比，这是一个非常微弱的来源。但是，通过增加时间bin，IGR J17091-3624的一些时间类别与随机性偏离，表明较高的分形维度的合理性。除了光谱分析外，总体IGR J17091-3624认为揭示了三种不同的积分类别：苗条，开普勒和对流积聚盘。
We explore the nonlinear properties of IGR J17091-3624 in the line of the underlying behaviour for GRS 1915+105, following correlation integral method. We find that while the latter is known to reveal the combination of fractal (or even chaotic) and stochastic behaviours depending on its temporal class, the former mostly shows stochastic behaviour. Therefore, although several observations argue IGR J17091-3624 to be similar to GRS 1915+105 with common temporal classes between them, underlying nonlinear time series analyses offer differently. Nevertheless, the Poisson noise to $rms$ variation value for IGR J17091-3624 turns out to be high, arguing them to be Poisson noise dominated and hence may plausibly lead to suppression of the nonlinear character, if any. Indeed, it is a very faint source compared to GRS 1915+105. However, by increasing time bin some of the temporal classes of IGR J17091-3624 show deviation from stochasticity, indicating plausibility of higher fractal dimension. Along with spectral analysis, overall IGR J17091-3624 argues to reveal three different accretion classes: slim, Keplerian and advective accretion discs.
