A Rastall Scalar-Tensor theory

Abstract

We formulate a theory combining the principles of a scalar-tensor gravity and the Rastall proposal of a violation of the usual conservation laws. In the resulting Brans-Dicke-Rastall (BDR) theory the only exact, static, spherically symmetric solution is a Robinson-Bertotti type solution besides the trivial Schwarzschild one. The PPN constraints can be completely satisfied for some values of the free parameters.The cosmological solutions display, among others, a decelerate-accelerate transition in the matter dominated phase.

Latex file, 6 pages, 4 figures in eps format. A short version of arXiv:1409.2322 by the same authors. To appear in the proceedings of the II Argentinian-Brazilian Meeting on Gravitation, Astrophysics and Cosmology, april 22-25, 2014, Buenos Aires, Argentina

References in corpus (1)

• Cosmological constraints on Brans-Dicke theory

Cited by in corpus (4)

• Black Hole Solutions Surrounded by Perfect Fluid in Rastall Theory
• A Generalization to the Rastall Theory and Cosmic Eras
• Thermodynamic analysis of the static spherically symmetric field equations in Rastall theory
• Quasinormal Modes of Non-Linearly Charged Black Holes surrounded by a Cloud of Strings in Rastall Gravity