Observational Signature and Additional Photon Rings of Asymmetric Thin-shell Wormhole
arXiv:2102.05488
Abstract
Recently, a distinct shadow mechanism was proposed by Wang et al. from the asymmetric thin-shell wormhole (ATW) in [Phys. Lett. B 811 (2020) 135930]. On the other hand, Gralla et al's work [Phys. Rev. D 100 (2019) 2, 024018] represented a nice description of photon rings in the presence of an accretion disk around a black hole. In this paper, we are inspired to thoroughly investigate the observational appearance of an accretion disk around the ATW. Although the spacetime outside an ATW with a throat could be identical to that containing a black hole with its event horizon, we show evident additional photon rings from the ATW spacetime. Moreover, a potential lensing band between two highly demagnified photon rings is found. Our analysis provides an optically observational signature to distinguish ATWs from black holes.
arXiv comment12 pages, 7 figures
References in corpus (7)
- Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings
- Universal Properties of Light Rings for Stationary Axisymmetric Spacetimes
- Relating Black Hole Shadow to Quasinormal Modes for Rotating Black Holes
- Double shadows of reflection-asymmetric wormholes supported by positive energy thin-shells
- Linearization stability of reflection-asymmetric thin-shell wormholes with double shadows
- Can shadows connect black hole microstructures?
- Multiple Rings in the Shadow of Extremely Compact Objects
Cited by in corpus (5)
- Photon Ring and Observational Appearance of a Hairy Black Hole
- Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
- The shadows and observational appearance of a noncommutative black hole surrounded by various profiles of accretions
- Light rings and long-lived modes in quasi-black hole spacetimes
- QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields