Measuring dark energy spatial inhomogeneity with supernova data
Astrophysics
2010-11-19 v1
Abstract
The gravitational lensing distortion of distant sources by the large-scale distribution of matter in the Universe has been extensively studied. In contrast, very little is known about the effects due to the large-scale distribution of dark energy. We discuss the use of Type Ia supernovae as probes of the spatial inhomogeneity and anisotropy of dark energy. We show that a shallow, almost all-sky survey can limit rms dark energy fluctuations at the horizon scale down to a fractional energy density of ~10^-4
Cite
@article{arxiv.0812.0376,
title = {Measuring dark energy spatial inhomogeneity with supernova data},
author = {Asantha Cooray and Daniel E. Holz and Robert Caldwell},
journal= {arXiv preprint arXiv:0812.0376},
year = {2010}
}
Comments
4 pages; PRL submitted