论文标题
插入的光子,插入粒子和观察者在黑洞的地平线附近静止
The infalling photon, the infalling particle, and the observer at rest near the horizon of a black hole
论文作者
论文摘要
当一个巨大的测试粒子或光子径向落入黑洞时,它们的能量(由位于地平线非常靠近地平线的静态观察者所测量时,它们的能量分歧。在有关一般相对性的介绍课程中,这一事实引起了人们对这种差异现实的问题,以及它对黑洞几何形状的最终影响。我们解决了这些问题,并表明,最终,静止的观察者可能会向度量标准进行校正,除非其质量在地平线附近至关重要。
When a massive test particle or a photon fall radially into a black hole, their energy, as measured by a static observer located very close to the horizon, diverges. In introductory courses on General Relativity, this fact gives rise to questions about the reality of this divergence, and its eventual effect on the geometry of the black hole. We address these concerns and show that, eventually, it is the observer at rest who may induce corrections to the metric, unless its mass is crucially small when located near the horizon.