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Dynamical analysis of scalar field cosmologies with spatial curvature

Gosenca, Mateja and Coles, Peter 2016. Dynamical analysis of scalar field cosmologies with spatial curvature. The Open Journal of Astrophysics 10.21105/astro.1502.04020

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Abstract

We explore the dynamical behaviour of cosmological models involving a scalar field (with an exponential potential and a canonical kinetic term) and a matter fluid with spatial curvature included in the equations of motion. Using appropriately defined parameters to describe the evolution of the scalar field energy in this situation, we elucidate the character of two fixed points that are not present in the case without curvature. We also analyse the evolution of the effective equation-of-state parameter for different initial values of the curvature.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: The Open Journal
Funders: Science and Technology Facilites Council (STFC)
Date of First Compliant Deposit: 31 May 2017
Date of Acceptance: 8 February 2016
Last Modified: 11 Mar 2020 11:10
URI: http://orca-mwe.cf.ac.uk/id/eprint/101027

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