CMB Lensing and the WMAP Cold Spot
Astrophysics
2009-08-26 v2
Abstract
Cosmologists have suggested a number of intriguing hypotheses for the origin of the "WMAP cold spot", the coldest extended region seen in the CMB sky, including a very large void and a collapsing texture. Either hypothesis predicts a distinctive CMB lensing signal. We show that the upcoming generation of high resolution CMB experiments such as ACT and SPT should be able to detect the signatures of either textures or large voids. If either signal is detected, it would have profound implications for cosmology.
Keywords
Cite
@article{arxiv.0809.4704,
title = {CMB Lensing and the WMAP Cold Spot},
author = {Sudeep Das and David N. Spergel},
journal= {arXiv preprint arXiv:0809.4704},
year = {2009}
}
Comments
5 pages, 2 figures, a bug in Fig.2 fixed