2009/10/31 by Amrita Bhattacharya, Ruslan Isaev, Massimo Scalia +3
Physics and Astronomy · #Bending #Black Holes and Theoretical Physics #Constant (computer programming) #Cosmological constant #Cosmology #Cosmology and Gravitation Theories #Galactic halo #Halo #Pulsars and Gravitational Waves Research #Schwarzschild radius #gr-qc
paper · pdf · doi:10.1088/1475-7516/2010/09/004
published as JCAP 1009:004,2010 · 15 pages
arxiv created 2010/07/13 · openalex publication_date 2010/09/08 · arxiv updated 2011/03/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.