Appearance of Keplerian discs orbiting on both sides of a reflection-symmetric wormhole
arXiv:2111.00750 · doi:10.1088/1475-7516/2022/01/054
Abstract
We construct optical appearance and profiled spectral lines of Keplerian discs with inner edge at the innermost circular geodesic located on both sides of the reflection-symmetric Simpson-Visser wormhole, in dependence on its parameter and inclination angle of a distant observer. We demonstrate significant differences in appearance of the discs on the our side and the other side of the wormhole. Large part of the other-side disc is always in the dark region of the image of the disc orbiting on the our side, enabling thus a simple distinguishing in observations. The profiled spectral lines generated by the disc on the other side (our side) demonstrate strong (weak) dependence on the spacetime parameter, and weak (strong) dependence on the inclination angle; they have also different shape, giving thus other clues to clearly distinguish in observations reflection-symmetric wormholes as alternatives to black holes.
References in corpus (12)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Traversable wormholes from surgically modified Schwarzschild spacetimes
- Jet Launching Structure Resolved Near the Supermassive Black Hole in M87
- Regular black holes and black universes
- Profiles of emission lines generated by rings orbiting braneworld Kerr black holes
- Astrophysical Wormholes
- `Mass without mass' from thin shells in Gauss-Bonnet gravity
- Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope
- Efficiency of the Keplerian accretion in the Braneworld Kerr--Newman Spacetimes and mining instability of some naked singularity spacetimes
- Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes
- Particle collisions and optical effects in the mining Kerr--Newman spacetimes
- Constructing spherically symmetric Einstein-Dirac systems with multiple spinors: Ansatz, wormholes and other analytical solutions