Extraction of Black Hole Rotational Energy by a Magnetic Field and the Formation of Relativistic Jets
Extraction of Black Hole Rotational Energy by a Magnetic Field and the Formation of Relativistic Jets
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DOI：
10.1126/science.1068240
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发表时间：
2002-01
期刊：
影响因子：
56.9
通讯作者：
S. Koide;K. Shibata;T. Kudoh;D. Meier
中科院分区：
文献类型：
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作者：
S. Koide;K. Shibata;T. Kudoh;D. Meier
利用数值模拟，我们模拟了在大尺度磁场中等离子体流入快速旋转黑洞的广义相对论磁流体动力学行为。结果表明，扭转阿尔芬波是由黑洞附近空间的旋转拖曳产生的。波沿着磁场线向外传输能量，导致孔附近等离子体的总能量减小到负值。当这种负能量等离子体进入视界时，黑洞的旋转能量就会降低。通过这一过程，旋转黑洞的能量被磁性提取
Using numerical simulations, we modeled the general relativistic magnetohydrodynamic behavior of a plasma flowing into a rapidly rotating black hole in a large-scale magnetic field. The results show that a torsional Alfvén wave is generated by the rotational dragging of space near the black hole. The wave transports energy along the magnetic field lines outward, causing the total energy of the plasma near the hole to decrease to negative values. When this negative energy plasma enters the horizon, the rotational energy of the black hole decreases. Through this process, the energy of the spinning black hole is extracted magnetically