中间极的非周期光学变率--具有截断的吸积盘的激变变星
Aperiodic optical variability of intermediate polars - cataclysmic variables with truncated accretion disks
摘要：
我们研究了7个含有磁化异步吸积白矮星的中间极星的光变功率谱，它们是XSS J 00564 +4548，IGR J 00234 +6141，DO Dra，V1223 Sgr，IGR J15094-6649，IGR J16500-3307和IGR J17195-4100，在光学波段，并证明它们的可变性可以很好地描述了一个模型的基础上的波动传播截断吸积盘。功率谱在傅立叶频率处有断裂，我们将其与白矮星磁层边界处圆盘的开普勒频率联系起来。本文提出，利用光功率谱的性质可以推断吸积盘内部的几何结构，特别是：1）中等极磁破裂吸积盘的截断半径，2）矮新星静止态吸积盘的截断半径
英文摘要：
We study the power spectra of the variability of seven intermediate polars containing magnetized asynchronous accreting white dwarfs, XSS J00564+4548,IGR J00234+6141, DO Dra, V1223 Sgr, IGR J15094-6649, IGR J16500-3307 and IGR J17195-4100, in the optical band and demonstrate that their variability can be well described by a model based on fluctuations propagating in a truncated accretion disk. The power spectra have breaks at Fourier frequencies, which we associate with the Keplerian frequency of the disk at the boundary of the white dwarfs' magnetospheres. We propose that the properties of the optical power spectra can be used to deduce the geometry of the inner parts of the accretion disk, in particular: 1) truncation radii of the magnetically disrupted accretion disks in intermediate polars, 2) the truncation radii of the accretion disk in quiescent states of dwarf novae
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
