摘要
In this paper,we study the optical properties of asymmetric thin-shell wormholes(ATWs)under torsion charge.Utilizing the cut-and-paste method developed by Visser,we construct these wormholes and determine their key physical properties,such as the radius of the photon sphere and critical impact parameters,under different torsion charges.Furthermore,we investigate the effective potential and behavior of photon motion within the wormhole spacetime,identifying a relationship between photon trajectories and impact parameters.The study focuses on scenarios where thin accretion disks act as the primary light source.It reveals that the optical features of ATWs under torsion charge significantly differ from those of black holes(BHs).Notably,an increase in torsion charge leads to a reduction in the sizes of both extra photon rings and lensing bands,which serve as important markers for distinguishing and characterizing ATW spacetimes from those of BHs.
作者
Qi-Qin Jing
Ke-Jian He
Zhi Luo
景琪钦;何柯腱;罗智(Sichuan Province Beichuan High School,Beichuan 622750,China;Department of Mechanics,Chongqing Jiaotong University,Chongqing 400074,China;Department of Physics,Chongqing University,Chongqing 401331,China)
