论文标题
通过黑洞艾科纳尔对应的重力测试
A novel test of gravity via black hole eikonal correspondence
论文作者
论文摘要
当在黑洞空间中采用时，几何镜头近似意味着在艾科尼尔极限和黑洞图像中黑洞的准模式（QNM）频谱之间进行映射。特别是，Eikonal QNM频率的实际部分和虚构部分分别与环形图像的表观大小和详细结构相关联。超出一般相对性时可能会违反这种对应关系。我们提出了一种新的方法，通过比较来自非旋转黑洞的两组可观察到的对应关系，一种是从QNM光谱中提取的，另一种是从图像平面上的透镜光子环中提取的。具体而言，无论周围的发射模型如何，光子环可观察到了黑洞时空本身的信息。因此，在相当广泛的情况下，可以验证提出的艾科纳尔对应测试。
When adopted in black hole spacetimes, geometric-optics approximations imply a mapping between the quasinormal mode (QNM) spectrum of black holes in the eikonal limit and black hole images. In particular, the real part and the imaginary part of eikonal QNM frequencies are associated with the apparent size and the detailed structure of the ring images, respectively. This correspondence could be violated when going beyond general relativity. We propose a novel method to test the eikonal correspondence via the comparison of two sets of observables from a nonrotating black hole, one extracted from QNM spectra and the other from the lensed photon rings on the image plane. Specifically, the photon ring observables robustly capture the information of the black hole spacetime itself regardless of the surrounding emission models. Therefore, the proposed test of eikonal correspondence can be validated in quite broad scenarios.
