...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Magnetized particle motion and acceleration around a Schwarzschild black hole in a magnetic field
【24h】

Magnetized particle motion and acceleration around a Schwarzschild black hole in a magnetic field

机译：磁场中Schwarzschild黑洞周围的磁化粒子运动和加速度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The capture cross section of magnetized particles with nonvanishing magnetic moment by a Schwarzschild black hole immersed in an asymptotically uniform magnetic field has been studied as an extension of the approach developed in Zakharov (1994 Class. Quantum Grav. 11 1027) for neutral unmagnetized particles in the Reissner–Nordstr?m spacetime. The magnetic moment of the particle is chosen as in de Felice and Sorge (2003 Class. Quantum Grav. 20 469). It is shown that the spin of the particle sustains the stability of particles circularly orbiting around the black hole immersed in a magnetic field, i.e., a spinning particle's motion near the Schwarzschild black hole horizon is more stable than that of a particle with zero spin. It is shown that the magnetic parameter essentially changes the value of the critical angular momentum and affects the process of capture of the particles by the central black hole. Furthermore, the interaction between the magnetic moment of the particle and the magnetic field forces stable circular orbits to shift to the central object, and this effect should be taken into account in astrophysical scenarios related to the accretion discs and in measuring the spin of the black holes. The magnetized particle's acceleration mechanism near the black hole in an external magnetic field is studied. It is shown that due to the presence of a magnetic field, magnetized particles can accelerate to unlimited high energies.
机译：作为在Zakharov（1994 Class.Quantum Grav.11 1027）中开发的方法的扩展，研究了沉入渐近均匀磁场中的Schwarzschild黑洞捕获的磁矩不消失的磁化粒子的截面。 Reissner–Nordstr？m时空。如de Felice and Sorge（2003 Class。Quantum Grav。20 469）中所述选择粒子的磁矩。结果表明，粒子的自旋维持了沉浸在磁场中黑洞周围圆形轨道的粒子的稳定性，即在Schwarzschild黑洞视界附近旋转的粒子的运动比自旋为零的粒子更稳定。结果表明，磁参数实质上改变了临界角动量的值，并影响了中心黑洞对颗粒的捕获过程。此外，粒子的磁矩和磁场之间的相互作用迫使稳定的圆形轨道移动到中心物体，并且在与吸积盘有关的天体物理场景中以及在测量黑色的自旋时，应考虑到这种影响孔。研究了外部磁场中黑洞附近磁化粒子的加速机制。结果表明，由于存在磁场，被磁化的粒子可以加速到无限的高能量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号