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https://www.um.edu.mt/library/oar/handle/123456789/89092
Title: | Conformal Weyl gravity and perihelion precession |
Authors: | Sultana, Joseph Kazanas, Demosthenes Said, Jackson |
Keywords: | Gravitation Gravity anomalies Cosmology Planetary theory Astrophysics |
Issue Date: | 2012 |
Publisher: | American Physical Society |
Citation: | Sultana, J., Kazanas, D., & Said, J. L. (2012). Conformal Weyl gravity and perihelion precession. Physical Review D, 86(8), 084008. |
Abstract: | We investigate the perihelion shift of planetary motion in conformal Weyl gravity using the metric of the static, spherically symmetric solution discovered by Mannheim and Kazanas [Astrophys. J. 342, 635 (1989)]. To this end we employ a procedure similar to that used by Weinberg for the Schwarzschild solution, which has also been used recently to study the solar system effects of the cosmological constant Λ . We show that besides the general relativistic terms obtained earlier from the Schwarzschild–de Sitter solution, the expression for the perihelion shift includes a negative contribution which arises from the linear term γ r in the metric. Using data for perihelion shift observations, we obtain constraints on the value of the constant γ similar to that obtained earlier using galactic rotational curves. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/89092 |
Appears in Collections: | Scholarly works - InsAT |
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