A late-time transition in the equation of state versus Lambda-CDM
Astrophysics
2007-05-23 v1
Abstract
We study a model of the dark energy which exhibits a rapid change in its equation of state w(z), such as occurs in vacuum metamorphosis. We compare the model predictions with CMB, large scale structure and supernova data and show that a late-time transition is marginally preferred over standard Lambda-CDM.
Cite
@article{arxiv.astro-ph/0205428,
title = {A late-time transition in the equation of state versus Lambda-CDM},
author = {B. A. Bassett and M. Kunz and J. Silk and C. Ungarelli},
journal= {arXiv preprint arXiv:astro-ph/0205428},
year = {2007}
}
Comments
4 pages, 1 figure, to appear in the proceedings of XXXVIIth Rencontres de Moriond, "The Cosmological Model", March 2002