Accelerated closed universes in scalar-tensor theories
Astrophysics
2009-11-10 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We describe an accelerating universe model in the context of a scalar-tensor theory. This model is intrinsically closed, and is filled with quintessence-like scalar field components, in addition to the Cold Dark Matter component. With a background geometry specified by the Friedman-Robertson-Walker metric, we establish conditions under which this closed cosmological model, described in a scalar-tensor theory, may look flat in a genuine Jordan-Brans-Dicke theory. Both models become indistinguishable at low enough redshift.
Keywords
Cite
@article{arxiv.astro-ph/0308441,
title = {Accelerated closed universes in scalar-tensor theories},
author = {Sergio del Campo and Patricio Salgado},
journal= {arXiv preprint arXiv:astro-ph/0308441},
year = {2009}
}
Comments
8 pages, 4 figures, in press (CQG)