Observational Signature and Additional Photon Rings of Asymmetric Thin-shell Wormhole
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.
Keywords
Cite
@article{arxiv.2102.05488,
title = {Observational Signature and Additional Photon Rings of Asymmetric Thin-shell Wormhole},
author = {Jun Peng and Minyong Guo and Xing-Hui Feng},
journal= {arXiv preprint arXiv:2102.05488},
year = {2021}
}
Comments
12 pages, 7 figures