Multi-component power spectra estimation method for multi-detector observations of the Cosmic Microwave Background
Astrophysics
2015-06-24 v1
Abstract
We present a new method for multi-component power spectra estimation in multi-frequency observations of the CMB. Our method is based on matching a model to the cross and auto power spectra of observed maps. All the component power spectra are estimated, as well as their mixing matrix. Noise power spectra are also estimated. The method has been applied to full-sky Planck simulations containing five astrophysical components and white noise. The beam smoothing effect is taken into account.
Keywords
Cite
@article{arxiv.astro-ph/0311305,
title = {Multi-component power spectra estimation method for multi-detector observations of the Cosmic Microwave Background},
author = {Guillaume Patanchon},
journal= {arXiv preprint arXiv:astro-ph/0311305},
year = {2015}
}
Comments
7 pages, 1 figure, proc. of the CMBnet workshop, 20-21 Feb. 2003 Oxford, UK. New Astronomy Reviews (eds. A. Melchiorri, J.I. Silk) in press