Light on curved backgrounds

Abstract

We consider the motion of light on different spacetime manifolds by calculating the deflection angle, lensing properties and by probing into the possibility of bound states. The metrics in which we examine the light motion include, among other, a general relativistic Dark Matter metric, a dirty Black Hole and a Worm Hole metric, the last two inspired by non-commutative geometry. The lensing in a Holographic Screen metric is discussed in detail. We study also the bending of light around naked singularities like, e.g., the Janis-Newman-Winicour metric and include other cases. A generic property of light behaviour in these exotic metrics is pointed out. For the standard metric like the Schwarzschild and Schwarzschild-de Sitter cases we improve the accuracy of the lensing results for the weak and strong regime.

34 pages, 10 figures

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Cited by in corpus (16)

• Light Deflection and Gauss-Bonnet Theorem: Definition of Total Deflection Angle and its Applications
• Geometrization of light bending and its application to SdSw spacetime
• Direct Probe of Dark Energy through Gravitational Lensing Effect
• Exploring Non--commutativity as a Perturbation in the Schwarzschild Black Hole: Quasinormal Modes, Scattering, and Shadows
• Gravitational Lensing in Weyl Gravity
• The perturbative approach for the weak deflection angle
• Rainbow scattering in the gravitational field of a compact object
• The optical geometry definition of the total deflection angle of a light ray in curved spacetime
• Light bending in a two black hole metric
• A Unified Spectral Approach for Quasinormal Modes of Morris-Thorne Wormholes
• General Relativistic Aberration Equation and Measurable Angle of Light Ray in Kerr--de Sitter Spacetime
• Relevant scales for the $C$-metric with positive cosmological constant
• Deflection of light in time-periodic spherically symmetric gravitational fields
• Imprints of non-commutativity on charged black holes
• Optical properties of null geodesics emerging from dynamical systems
• Deflection and gravitational lensing of null and timelike signals in general asymptotically (anti-)de Sitter spacetimes