Exact Kantowski-Sachs spacetimes in Einstein-Aether Scalar field theory

Abstract

Exact and analytic solutions in Einstein-Aether scalar field theory with Kantowski-Sachs background space are determined. The theory of point symmetries is applied to determine the functional form of the unknown functions which defines the gravitational model. Conservation laws are applied to reduce the order of the field equations and write the analytic solution. Moreover, in order to understand the physical behaviour of the cosmological model a detailed analysis of the asymptotic behaviour for the gravitational field equations is performed.

arXiv comment18 pages, 2 figures, Latex2e source file, accepted in EPJC version

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