Gravitational lensing by multi-polytropic wormholes
S. N. Sajadi, N. Riazi
Abstract
We obtain static, asymptotically flat, multi-polytropic wormhole solutions in the framework of general relativity. We examine gravitational lensing in the presence of the wormhole and calculate the deflection angle for both weak and strong fields. We investigate microlensing in the weak field limit and obtain corresponding light curves for both galactic and extragalactic situations. We discuss the astrophysical motivation of considering the multi-polytropic equation of state that supports the wormhole geometry. Finally, we investigate the energy conditions.
Topics & Concepts
PhysicsWormholePolytropic processGravitational microlensingGeneral relativityGravitational lensEquation of stateClassical mechanicsDeflection (physics)GravitationTheoretical physicsAstrophysicsGalaxyQuantum mechanicsRedshiftCosmology and Gravitation TheoriesGalaxies: Formation, Evolution, PhenomenaBlack Holes and Theoretical Physics