论文标题
带有Hayward轮廓的薄壳虫洞的光学外观
Optical appearance of a thin-shell wormhole with a Hayward profile
论文作者
论文摘要
研究了带有海沃德曲线的薄壳虫洞（TSW）的光学特性。通过采用射线追踪方法，我们证明了TSW的对侧时空能够反映出大部分光回观察者的时空。我们分析了TSW的有效电位，光偏转和方位角，发现这些量受黑孔（BHS）的质量比的影响。具体而言，如果对侧时空BH的质量大于原始时空BH的质量，并且影响参数满足条件$ hb _ {\ rm c2} <b_ {1} <b _ {\ b _ {\ rm c1} $，则光子的轨迹表现出光子的轨道轨迹。假设存在围绕时空BH的薄积聚盘，我们的结果表明，与单独使用BH相比，TSW形成的图像表现出额外的光子环和镜带。
The optical properties of a thin-shell wormhole (TSW) with a Hayward profile is investigated. Adopting the ray-tracing method, we demonstrate that the TSW's contralateral spacetime is capable of reflecting a significant portion of light back to the observer spacetime. We analyze the effective potential, light deflection, and azimuthal angle of the TSW and find that these quantities are affected by the mass ratio of the black holes (BHs). Specifically, if the mass of the contralateral spacetime BH is greater than that of the original spacetime BH, and the impact parameter satisfies the condition $Hb_{\rm c2}<b_{1}<b_{\rm c1}$, the trajectory of the photon exhibits round-trip characteristics. Assuming the presence of a thin accretion disk surrounding the observing spacetime BH, our results indicate that the image formed by the TSW exhibits additional photon rings and a lensing band compared to an image produced by a BH alone.
