Light bending in the galactic halo by Rindler-Ishak method
- Department of Mathematics, University of North Bengal, Rajarammohunpur, Siliguri 734 013 (India)
- Joint Research Laboratory, Bashkir State Pedagogical University, 3A, October Revolution Street, Ufa 450000 (Russian Federation)
- Dipartimento di Matematica, Istituto ''G. Castelnuovo'', Università La Sapienza, P.le Aldo Moro, 2, Rome (Italy)
After the work of Rindler and Ishak, it is now well established that the bending of light is influenced by the cosmological constant Λ appearing in the Schwarzschild-de Sitter spacetime. We show that their method, when applied to the exact Mannheim-Kazanas-de Sitter solution of the Weyl conformal gravity, nicely yields the expected answer together with several other physically interesting new terms. Apart from Λ, the solution is parametrized by a conformal parameter γ, which is known to play a dominant role in the galactic halo gravity. The application of the method yields exactly the same γ− correction to Schwarzschild bending as obtained by standard methods. Different cases are analyzed, which include some corrections to the special cases considered in the original paper by Rindler and Ishak.
- OSTI ID:
- 22275419
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 09; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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