论文标题
重新归一化组周围的测试颗粒的动力学改善了Schwarzschild黑洞
Dynamics of test particles around renormalization group improved Schwarzschild black holes
论文作者
论文摘要
在本文中，在存在外部渐近统一磁场的情况下，我们研究了重新归一化组的中性，电荷和磁性颗粒的动力学。 We have analyzed the spacetime structure around RGI black hole by investigating Ricci, the square of Ricci tensor and Kretschmann curvature scalars and shown that only in the case when the parameter $γ=0$ the curvature becomes infinite at the center of the black hole, while for non-zero values of $γ$ parameter the black hole curvature reflects the properties of regular black hole.分析RGI黑洞周围测试中性颗粒的最内向的圆形轨道，并与旋转Kerr黑洞的结果进行比较，我们已经表明，RGI黑洞参数可以模仿Kerr Black Black hole的旋转参数至$ a/m \ a/m \ simsim 0.31 $ 0.31 $提供了相同的ISCO radius。由于根据天文学观察，增生磁盘确认天体物理黑洞正在迅速旋转，最高$ a/m \ sim 0.99 $ 0.99 $可能会得出结论，RGI SCHWARZSCHILD黑洞的参数效果无法模仿中性粒子的圆形轨道上的效果。然后，汉密尔顿 - 雅各比方程已用于分析RGI黑洞附近带电和磁性的颗粒运动，而在外部渐近均匀的磁性（电磁）场之间存在强相互作用，并磁化（电荷）粒子。我们已经表明，RGI黑洞参数数量地改变了带电和磁化颗粒的动力学，特别是颗粒的ISCO半径随着参数$λ$的增加而降低，而参数$γ$增加的原因增加了。
In this paper we have investigated the dynamics of neutral, electrically charged and magnetized particles around renormalized group improved (RGI) Schwarzschild black hole in the presence of external asymptotically uniform magnetic field. We have analyzed the spacetime structure around RGI black hole by investigating Ricci, the square of Ricci tensor and Kretschmann curvature scalars and shown that only in the case when the parameter $γ=0$ the curvature becomes infinite at the center of the black hole, while for non-zero values of $γ$ parameter the black hole curvature reflects the properties of regular black hole. Analyzing the innermost stable circular orbits of test neutral particles around RGI black hole and comparing with the results for rotating Kerr black hole we have shown that RGI black hole parameters can mimic the rotation parameter of Kerr black hole upto $a/M \lesssim 0.31$ providing the same ISCO radius. Since according to the astronomical observations of the accretion disks confirm that the astrophysical black holes are rapidly rotating with the spin parameter upto $a/M \sim 0.99$ one may conclude that the effects of parameters of RGI Schwarzschild black hole on the circular orbits of the neutral particles can not mimic the Kerr black hole. Then the Hamilton-Jacobi equation has been used to analyze the charged and magnetized particles motion near the RGI black hole in the presence of the strong interaction between external asymptotically uniform magnetic (electromagnetic) field and magnetized (electrically charged) particle. We have shown that RGI black hole parameters quantitatively change the dynamics of the charged and magnetized particles, in particular ISCO radius of the particles decreases with increasing the parameter $λ$, while the increase of the parameter $γ$ causes to increase of it.
