The Robustness of Phase Mapping as a Non-Gaussianity Test
- 6 February 2004
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 602 (1), L1-L4
- https://doi.org/10.1086/382211
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 measuresKeywords
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