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arXiv 2111.08682gr-qcastro-ph.HE
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受无力磁场扰动的Schwarzschild黑洞

Schwarzschild black hole perturbed by a force-free magnetic field

Haidar Sheikhahmadi

摘要:

我们设想一个黑洞受到外部无力磁场(FFMF)的扰动,并试图确定它的结构。我们假设描述这个黑洞的度规是静态球形的,即史瓦西,从FFMF源发出的能量-动量张量扰动了这个背景度规,在这方面,我们可以想象一个磁吸积盘围绕着黑洞。通过求解这种配置的方程,我们将表明,除了修改背景度量的对角元素之外,我们还将看到一般度量的非对角元素的非零化,其直接后果之一将是静态到稳态的过渡。“时空告诉物质如何运动;物质告诉时空如何弯曲”--约翰·阿奇博尔德·惠勒

英文摘要:

We envisage a black hole perturbed by a force-free magnetic field (FFMF) outside and attempt to determine its structure. We suppose the metric that describes this black hole is of the static spherical type, that is Schwarzschild, and the energy-momentum tensor emanating from an FFMF source perturbs this background metric, in this regard one can imagine a magnetic accretion disk around the black hole. By solving the equations for such a configuration, we will show that in addition to modifying the diagonal elements of the background metric, we will also see the non-zeroing of the off-diagonal elements of the general metric, one of the immediate consequences of which will be a static to stationary transition. "Space-time tells matter how to move; matter tells space-time how to curve" -- John Archibald Wheeler

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