Detectability of a phantom-like braneworld model with the integrated Sachs-Wolfe effect
Astrophysics
2008-11-26 v1
Abstract
We study a braneworld model in which a phantom-like behaviour occurs with only cold dark matter and a cosmological constant, due to a large distance modification of gravity. With the addition of curvature, the geometrical tests are not strict enough to rule out models in which gravity is modified significantly on large scales. We show that this degeneracy in the parameter space is broken by the structure formation tests, such as the integrated Sachs-Wolfe effect, which can probe general relativity on large scales.
Keywords
Cite
@article{arxiv.0803.2238,
title = {Detectability of a phantom-like braneworld model with the integrated Sachs-Wolfe effect},
author = {Tommaso Giannantonio and Yong-Seon Song and Kazuya Koyama},
journal= {arXiv preprint arXiv:0803.2238},
year = {2008}
}
Comments
7 pages, 4 figures