论文标题
反射 - 对称虫洞及其双阴影
Reflection-asymmetric wormholes and their double shadows
论文作者
论文摘要
我们讨论了通过将两个带有不同质量和电荷参数连接的reissner-nordstrom空间连接起来获得的虫洞的结构和观察性能。这些对象在球面上是对称的，但不反射对称，因为连接的空间有所不同。反射 - 对称虫洞可能反映了插入辐射的很大一部分回到其起源的时空。我们在有效光子电位的简单框架中解释了这种效果。根据模型参数，远处观察者看到的这种虫洞的图像（其“阴影”）可能包含在观察者侧面形成的光子环，在虫洞另一侧形成的光子环或两个光子环。这些独特的拓扑特征将使我们使用放射量表观察牢固地将这类物体与Kerr黑洞区分开来。
We discuss construction and observational properties of wormholes obtained by connecting two Reissner-Nordstrom spacetimes with distinct mass and charge parameters. These objects are spherically symmetric, but not reflection-symmetric, as the connected spacetimes differ. The reflection-asymmetric wormholes may reflect a significant fraction of the infalling radiation back to the spacetime of its origin. We interpret this effect in a simple framework of the effective photon potential. Depending on the model parameters, image of such a wormhole seen by a distant observer (its "shadow") may contain a photon ring formed on the observer's side, photon ring formed on the other side of the wormhole, or both photon rings. These unique topological features would allow us to firmly distinguish this class of objects from Kerr black holes using radioastronomical observations.
