Phase Mapping as a Powerful Diagnostic of Primordial Non-Gaussianity
Astrophysics
2009-11-07 v1
Abstract
The identification and extraction of non-Gaussian signals is one of the main cosmological challenges facing future experimental measurements of the cosmic microwave background temperature pattern. We present a generalized statistical measure based on a novel technique representation of Fourier phases using the return map. We show that this method is both robust and powerful in comparison, for example, with morphological measures.
Cite
@article{arxiv.astro-ph/0208235,
title = {Phase Mapping as a Powerful Diagnostic of Primordial Non-Gaussianity},
author = {Lung-Yih Chiang and Pavel Naselsky and Peter Coles},
journal= {arXiv preprint arXiv:astro-ph/0208235},
year = {2009}
}