论文标题
在黑洞视野上提取信息
Extracting information on black hole horizons
论文作者
论文摘要
我们介绍了Kerr Black Hole Horizons的一些功能，这些功能在外部观察者可以访问的轨道上复制。我们使用地平线限制和复制品的概念表明，外部地平线外存在的光子轨道包含有关内部地平线的信息，从原则上讲，可以通过黑洞的发射光谱检测到。结果表明，这种光子轨道存在于Kerr几何形状的旋转轴附近。我们认为这些结果可用于识别并进一步研究黑洞及其视野
We present some features of Kerr black hole horizons that are replicated on orbits accessible to outside observers. We use the concepts of horizon confinement and replicas to show that outside the outer horizon there exist photon orbits whose frequencies contain information about the inner horizon and that can, in principle, be detected through the emission spectra of black holes. It is shown that such photon orbits exist close to the rotation axis of the Kerr geometry. We argue that these results could be used to recognize and further investigate black holes and their horizons
