Madam - a map-making method for CMB experiments
Astrophysics
2009-11-10 v1
Abstract
We present a new map-making method for CMB measurements. The method is based on the destriping technique, but it also utilizes information about the noise spectrum. The low-frequency component of the instrument noise stream is modelled as a superposition of a set of simple base functions, whose amplitudes are determined by means of maximum-likelihood analysis, involving the covariance matrix of the amplitudes. We present simulation results with noise and show a reduction in the residual noise with respect to ordinary destriping. This study is related to \Planck LFI activities.
Cite
@article{arxiv.astro-ph/0412517,
title = {Madam - a map-making method for CMB experiments},
author = {E. Keihanen and H. Kurki-Suonio and T. Poutanen},
journal= {arXiv preprint arXiv:astro-ph/0412517},
year = {2009}
}