Bending of light in conformal Weyl gravity

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.127502· OSTI ID:21408132

Sultana, Joseph; Kazanas, Demosthenes ^[1]

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1. Astrophysics Science Division, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States) and Department of Mathematics, University of Malta, Msida (Malta)

We reexamine the bending of light issue associated with the metric of the static, spherically symmetric solution of Weyl gravity discovered by Mannheim and Kazanas (1989). To this end we employ the procedure used recently by Rindler and Ishak to obtain the bending angle of light by a centrally concentrated spherically symmetric matter distribution in a Schwarzschild-de Sitter background. In earlier studies the term {gamma}r in the metric led to the paradoxical result of a bending angle proportional to the photon impact parameter, when using the usual formalism appropriate to asymptotically flat space-times. However, employing the approach of light bending of Rindler and Ishak we show that the effects of this term are in fact insignificant, with the discrepancy between the two procedures attributed to the definition of the bending angle between the asymptotically flat and nonflat spaces.

• OSTI ID: 21408132
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 12; Other Information: DOI: 10.1103/PhysRevD.81.127502; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BENDING
DE SITTER SPACE
DISTRIBUTION
IMPACT PARAMETER
MATHEMATICAL SOLUTIONS
METRICS
PHOTONS
QUANTUM GRAVITY
SPACE-TIME
SYMMETRY
WEYL UNIFIED THEORY
BOSONS
DEFORMATION
ELEMENTARY PARTICLES
FIELD THEORIES
MASSLESS PARTICLES
MATHEMATICAL SPACE
QUANTUM FIELD THEORY
SPACE
UNIFIED-FIELD THEORIES