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arXiv 1003.5034astro-ph.HE
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黑洞低质量X射线双星高频准周期振荡的广义相对论磁流体动力学模型

A General Relativistic Magnetohydrodynamic Model of High Frequency Quasi-periodic Oscillations in Black Hole Low-Mass X-ray Binaries

Chang-Sheng Shi, Xiang-Dong Li

摘要:

本文对黑洞低质量X射线双星的高频准周期振荡现象提出了一种可能的解释。通过求解微扰广义相对论磁流体动力学方程组,我们发现了具有环形磁场的吸积盘中Alfven波的两个稳定模。我们认为,这两种模式可能会导致双高频QPO,如果它们产生的过渡区之间的内部平流占主导地位的吸积流和外部薄盘。这个模型自然地解释了QPO的上下频率的3:2关系,以及黑洞质量和QPO频率之间的关系。

英文摘要:

We suggest a possible explanation for the high frequency quasi-periodic oscillations (QPOs) in black hole low mass X-ray binaries. By solving the perturbation general relativistic magnetohydrodynamic equations, we find two stable modes of the Alfven wave in the the accretion disks with toroidal magnetic fields. We suggest that these two modes may lead to the double high frequency QPOs if they are produced in the transition region between the inner advection dominated accretion flow and the outer thin disk. This model naturally accounts for the 3 : 2 relation for the upper and lower frequencies of the QPOs, and the relation between the black hole mass and QPO frequency.

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。

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