Discriminating between models for the dark energy
High Energy Physics - Phenomenology
2009-11-07 v3 Astrophysics
Abstract
Recent measurements suggest our universe has a substantial dark energy component, which is usually interpreted in terms of a cosmological constant. Here we examine how much the form of this dark energy can be modified while still retaining an acceptable fit to the high redshift supernova data. We first consider changes in the dark energy equation of state and then explore a model in which the dark energy is interpreted as a fluid with a bulk viscosity.
Cite
@article{arxiv.hep-ph/0211109,
title = {Discriminating between models for the dark energy},
author = {Duane A. Dicus and Wayne W. Repko},
journal= {arXiv preprint arXiv:hep-ph/0211109},
year = {2009}
}
Comments
Additional references, expanded discussion of entropy including a new figure