Gosenca, Mateja and Coles, Peter
(2016)
Dynamical Analysis of Scalar Field Cosmologies with Spatial Curvature.
The Open Journal of Astrophysics.
ISSN 2565-6120
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 find that there are two extra 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
|
| Keywords: |
dynamical systems;
general relativity;
spatial curvature;
scalar field;
cosmological models |
| Academic Unit: |
Faculty of Science and Engineering > Theoretical Physics |
| Item ID: |
12500 |
| Identification Number: |
https://doi.org/10.21105/astro.1502.04020 |
| Depositing User: |
Peter Coles
|
| Date Deposited: |
28 Feb 2020 16:47 |
| Journal or Publication Title: |
The Open Journal of Astrophysics |
| Publisher: |
Maynooth Academic Publishing |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
Repository Staff Only(login required)
 |
Item control page |
Downloads per month over past year
Origin of downloads
Altmetric
Altmetric