2018/05/31 by Muhammed Amir, Ayan Banerjee, Sunil D. Maharaj
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Charge (physics) #Charged particle #Cosmology and Gravitation Theories #Dilaton #Electric charge #Geodesic #Magnetic monopole #Shadow (psychology) #Wormhole #gr-qc
paper · pdf · doi:10.1016/j.aop.2018.11.004
published as Annals Phys. 400, 198 (2019) · 8 pages, 4 figures
openalex created_date 2018/06/13 · openalex publication_date 2018/11/16 · arxiv created 2018/12/06 · arxiv updated 2018/12/07 · openalex updated_date 2026/08/05
The study of shadow is quite prominent nowadays because of the ongoing Event Horizon Telescope\footnotehttps://eventhorizontelescope.org/ observations. We construct the shadow images of charged wormholes in Einstein-Maxwell-dilaton (EMD) theory. The spacetime metric of the charged wormholes contains three charges: magnetic charge P, electric charge Q, and dilaton charge Σ. We evaluate the photon geodesics around the charged wormholes. We also calculate the effective potential and discuss its behavior with angular momentum L and different values of charges P, Q, and Σ. A study of the shadow of charged wormholes reveals that the shadow has an effect of the charges P and Q. The radius of the shadow increases with the magnetic charge P as well as the electric charge Q. We also find that the dilaton charge does not affect the shadow of the charged wormholes.