Probing a self-complete and Generalized-Uncertainty-Principle black hole with precessing and periodic motion
Probing a self-complete and Generalized-Uncertainty-Principle black hole with precessing and periodic motion
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DOI：
10.1007/s10509-022-04046-5
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发表时间：
2022-02
影响因子：
1.9
通讯作者：
Jing Zhang;Yi-Xi Xie
中科院分区：
文献类型：
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作者：
Jing Zhang;Yi-Xi Xie
研究了自完备广义测不准原理(GUP)黑洞周围类时粒子的进动和周期轨道。在求出其边缘有界轨道和最内稳定圆轨道后，得到了有界轨道的允许条件。根据S2星绕银心的进动轨道，计算出相对论近星进动，从而估算出GUP的最小分辨长度。对于周期运动，我们发现当最小长度接近它的临界值时，周期轨道对最小长度的任何变化都非常敏感，很容易变得无界。
We investigate the precessing and periodic orbits of timelike particles around a self-complete and Generalized-Uncertainty-Principle (GUP) black hole. After its marginally bound orbit and innermost stable circular orbit are found, we obtain the allowable conditions for the bound orbits. The relativistic periastron advance is worked out, and thereby the minimal resolution length of the GUP is estimated based on the precessing orbit of the S2 star around the Galactic Center. For the periodic motion, we find that when the minimal length approaches its critical value, it would be extremely sensitive for the periodic orbits to disturbance due to any variation of the minimal length so that they would easily become unbound.