Deviation From \Lambda CDM With Cosmic Strings Networks
Cosmology and Nongalactic Astrophysics
2015-06-05 v2 General Relativity and Quantum Cosmology
Abstract
In this work, we consider a network of cosmic strings to explain possible deviation from \Lambda CDM behaviour. We use different observational data to constrain the model and show that a small but non zero contribution from the string network is allowed by the observational data which can result in a reasonable departure from \Lambda CDM evolution. But by calculating the Bayesian Evidence, we show that the present data still strongly favour the concordance \Lambda CDM model irrespective of the choice of the prior.
Keywords
Cite
@article{arxiv.1207.4024,
title = {Deviation From \Lambda CDM With Cosmic Strings Networks},
author = {Sumit Kumar and Akhilesh Nautiyal and Anjan A. Sen},
journal= {arXiv preprint arXiv:1207.4024},
year = {2015}
}
Comments
15 Pages, Latex Style, 4 eps figures, Revised Version, Accepted for publication in European Physical Journal C