论文标题

远离极端无力磁层的近马诱导剂

Moving away from the Near-Horizon Attractor of the Extreme Kerr Force-Free Magnetosphere

论文作者

Camilloni, F., Grignani, G., Harmark, T., Oliveri, R., Orselli, M.

论文摘要

我们考虑在极端的Kerr黑洞周围无力的磁层。在这种情况下,没有已知的精确分析解决方案来强制固定,轴对称和磁为主导的游离电动力学。但是,在极端的Kerr Black Hole中,任何固定的,轴对称和常规的无力磁层都可以在近磨牙的Extreme Kerr(NHEK)限制中接近相同的吸引子溶液,并使用无效的电磁场接近。我们表明,通过远离NHEK地区的吸引力溶液,人们在具有有限的角动量流出的极端Kerr黑洞中找到了磁性的解决方案。该结果是使用二阶扰动分析来实现的。

We consider force-free magnetospheres around the extreme Kerr black hole. In this case there is no known exact analytic solution to force free electrodynamics which is stationary, axisymmetric and magnetically-dominated. However, any stationary, axisymmetric and regular force-free magnetosphere in extreme Kerr black hole approaches the same attractor solution in the near-horizon extreme Kerr (NHEK) limit with null electromagnetic field. We show that by moving away from the attractor solution in the NHEK region, one finds magnetically-dominated solutions in the extreme Kerr black hole with finite angular momentum outflow. This result is achieved using a perturbative analysis up to the second order.

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