Late time acceleration in 3-brane Brans-Dicke cosmology

TL;DR

This paper explores five-dimensional Brans-Dicke cosmology, showing it can avoid big rip singularities, cross the phantom divide, and align with observational data on dark energy.

Contribution

It provides new solutions for 3-brane Brans-Dicke cosmology, demonstrating features like singularity avoidance and compatibility with dark energy observations.

Findings

Avoids big rip singularity

Enables crossing the phantom divide line

Matches observational data for dark energy

Abstract

In order to investigate more features of the Brans-Dicke cosmology in the five-dimensional space-time, we explore the solutions of its dynamiacal systems. A behavior of the universe in its early and late time by means of the scale factor is considered. As a results, we show that it is possible to avoid the big rip singularity and to cross the phantom divide line. Furthermore, we review the dark energy component of the universe and its agreement with the observation data for this 3-brane Brans Dicke cosmology by means of the cosmological parameters.