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arXiv 2004.11285gr-qc
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2-2-洞中引力波的阻尼

Damping of gravitational waves in 2-2-holes

Bob Holdom

摘要:

2-2孔是一个明确的实现水平的对象,仍然可以非常接近BH。一个普通的相对论气体可以作为二次引力的2-2孔解的物质源,这导致了一个可计算的面积定律熵。在这里,我们表明,它也导致了一个估计的阻尼的引力波,因为它传播到中心的2-2-洞,并再次回来。我们确定了两个频率相关的影响,大大减少了阻尼。自旋2-2-孔解是未知的,但我们仍然能够考虑一些自旋相关的影响。阻尼的频率和自旋依赖性有助于确定来自合并事件的旋转残余物的可能的回波共振信号。它还控制着麦角区不稳定的命运。

英文摘要:

A 2-2-hole is an explicit realization of a horizonless object that can still very closely resemble a BH. An ordinary relativistic gas can serve as the matter source for the 2-2-hole solution of quadratic gravity, and this leads to a calculable area-law entropy. Here we show that it also leads to an estimate of the damping of a gravitational wave as it travels to the center of the 2-2-hole and back out again. We identify two frequency dependent effects that greatly diminish the damping. Spinning 2-2-hole solutions are not known, but we are still able to consider some spin dependent effects. The frequency and spin dependence of the damping helps to determine the possible echo resonance signal from the rotating remnants of merger events. It also controls the fate of the ergoregion instability.

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