论文标题
部分可观测时空混沌系统的无模型预测
Detection of Quasi-Periodic Oscillations in the Blazar S4 0954+658 with TESS
论文作者
论文摘要
我们报告了在Blazar S4 0954+658的光学发射中检测到几个准周期性的检测。通过六个领域的过境系外行星调查卫星（TESS）观察到了来源，并且在其中一个部门中显示了这些特征，其中QPO显然是其中四个部分中存在的1.52天。我们使用广义的Lomb-Scargle期刊方法来搜索重要的信号，并使用加权小波变换确认了它们进行时频域分析。我们讨论了这些快速的准周期性变化的几种可能解释，并表明在积聚磁盘的最重要部分中的起源很可能是很可能的。在此框架内，我们提供了该蓝色核心的黑洞质量的估计值。
We report the detection of several quasi-periodicities around 0.6--2.5 days in the optical emission of the blazar S4 0954+658. The source was observed by the Transiting Exoplanet Survey Satellite (TESS) in six sectors and it showed these features in all but one of them, with a QPO of 1.52 days apparently present in portions of four of them. We used the generalized Lomb-Scargle periodogram method to search for significant signals and we confirmed them using a weighted wavelet transform for time-frequency domain analyses. We discuss several possible explanations for these rapid quasi-periodic variations and suggest that an origin in the innermost part of the accretion disk is most likely. Within this framework, we provide estimates for the mass of the black hole at the core of this blazar.
