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Dynamics of magnetized particles around 4-D Einstein Gauss–Bonnet black hole
Physics of the Dark Universe ( IF 5.0 ) Pub Date : 2020-08-29 , DOI: 10.1016/j.dark.2020.100715
Ahmadjon Abdujabbarov , Javlon Rayimbaev , Bobur Turimov , Farruh Atamurotov

In this paper, we have investigated the dynamics of magnetized particles around 4-D Einstein Gauss–Bonnet black hole immersed in an external asymptotically uniform magnetic field. We have shown that the magnetic interaction parameter responsible for circular orbits decreases for negative values of the Gauss–Bonnet parameter α and the range where magnetized particle’s stable circular orbits are allowed increases for the positive values of the parameter α. The study of the collisions of magnetized, charged and neutral particles has shown that the center-of-mass energy of the particles increases in the presence of positive Gauss–Bonnet parameter. Finally, we show how the magnetic interaction and Gauss–Bonnet parameter may mimic the effect of rotation of the Kerr black hole giving the same ISCO radius for magnetized particles. Detailed analysis of the ISCO show that spin of Kerr black hole cannot be mimicked by the effects of magnetic interaction and the Gauss–Bonnet parameters when α<4.37 and the spin parameter a>0.237.



中文翻译:

4维爱因斯坦高斯-引擎盖黑洞周围的磁化粒子动力学

在本文中,我们研究了浸入外部渐近均匀磁场中的4-D爱因斯坦高斯-贝涅特黑洞周围的磁化粒子的动力学。我们已经证明,对于高斯-邦尼参数的负值,负责圆轨道的磁相互作用参数减小α 对于参数的正值,允许磁化粒子的稳定圆形轨道的范围会增加 α。对磁化,带电和中性粒子的碰撞的研究表明,在存在正高斯-贝内参数的情况下,粒子的质心能量会增加。最后,我们展示了磁性相互作用和高斯-贝涅特参数如何模仿Kerr黑洞的旋转效应,从而为被磁化的粒子提供相同的ISCO半径。对ISCO的详细分析表明,当相互作用时,磁相互作用和高斯-贝内参数无法模拟Kerr黑洞的自旋。α<-437 和旋转参数 一种>0237

更新日期:2020-08-29
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