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arXiv 2108.09562gr-qc
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Edson-Visser正则黑洞和虫洞周围的周转振荡

Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes

Zdeněk Stuchlík, Jaroslav Vrba

摘要:

利用长度参数$l$,研究了以独特方式描述规则黑反弹黑洞和反射对称虫洞的Simpson-Visser亚几何沿圆测地线的周转振荡运动.本文给出了内边缘位于最内侧圆测地线上的开普勒圆盘在黑洞外视界上方或在虫洞的我们一侧的轨道和周转运动的频率。我们使用这些频率的周转共振版本的所谓测地线模型的高频准周期振荡(HF QPOs)中观察到的微类星体和周围的超大质量黑洞在活动星系核测试的能力,这个元几何改善HF QPOs的观测数据从周围的超大质量黑洞的拟合。我们证明,这是真的有可能的虫洞足够高的长度参数$l$。

英文摘要:

We study epicyclic oscillatory motion along circular geodesics of the Simpson--Visser meta-geometry describing in a unique way regular black-bounce black holes and reflection-symmetric wormholes by using a length parameter $l$. We give the frequencies of the orbital and epicyclic motion in a Keplerian disc with inner edge at the innermost circular geodesic located above the black hole outer horizon or on the our side of the wormhole. We use these frequencies in the epicyclic resonance version of the so-called geodesic models of high-frequency quasi-periodic oscillations (HF QPOs) observed in microquasars and around supermassive black holes in active galactic nuclei to test the ability of this meta-geometry to improve the fitting of HF QPOs observational data from the surrounding of supermassive black holes. We demonstrate that this is really possible for wormholes with sufficiently high length parameter $l$.

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