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首页> 外文期刊>The Astrophysical journal >THE IMPORTANCE OF DISCOVERING A 3 : 2 TWIN-PEAK QUASI-PERIODIC OSCILLATION IN AN ULTRALUMINOUS X-RAY SOURCE, OR HOW TO SOLVE THE PUZZLE OF INTERMEDIATE-MASS BLACK HOLES
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THE IMPORTANCE OF DISCOVERING A 3 : 2 TWIN-PEAK QUASI-PERIODIC OSCILLATION IN AN ULTRALUMINOUS X-RAY SOURCE, OR HOW TO SOLVE THE PUZZLE OF INTERMEDIATE-MASS BLACK HOLES

机译：在超X射线源中发现3：2双峰准周期振荡的重要性，或者如何解决中间质量黑洞的难题

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摘要

Recently, twin-peak quasi-periodic oscillations (QPOs) have been observed in a 3:2 ratio for three Galactic black hole microquasars with frequencies that have been shown to scale as 1/M, as expected for general relativisitic motion near a black hole. It may be possible to extend this result to distinguish between the following two disparate models that have been proposed for the puzzling ultraluminous X-ray sources (ULXs): (1) an intermediate-mass black hole (M ～10~3 solar mass) radiating very near the Eddington limit and (2) a conventional black hole (M ～ 10 solar mass) accreting at a highly super-Eddington rate with its emission beamed along the rotation axis. We suggest that one could discriminate between these models by detecting the counterpart of a Galactic twin-peak QPO in a ULX: the expected frequency for the intermediate-mass black hole model is only about 1 Hz, whereas for the conventional black hole model the expected frequency would be the ～100 Hz value observed for the Galactic microquasars.
机译：最近，三个银河黑洞微类星体以3：2的比率观察到双峰准周期振荡（QPO），其频率已显示为缩放为1 / M，这是黑洞附近的一般相对论运动所期望的。可能有可能扩展此结果，以区分为令人困惑的超发光X射线源（ULXs）提出的以下两个不同模型：（1）中等质量黑洞（太阳质量M〜10〜3）辐射非常接近爱丁顿极限，并且（2）常规黑洞（太阳质量M〜10）以非常高的爱丁顿速率积聚，其发射沿旋转轴射束。我们建议，可以通过检测ULX中银河双峰QPO的对应物来区分这些模型：中等质量黑洞模型的预期频率仅为1 Hz，而常规黑洞模型的预期频率频率将是银河系微类星体的〜100 Hz值。

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