Cmb multipole measurements in the presence of foregrounds

@article{OliveiraCosta2006CmbMM,
  title={Cmb multipole measurements in the presence of foregrounds},
  author={A. D. Oliveira-Costa and Max Tegmark},
  journal={Physical Review D},
  year={2006},
  volume={74},
  pages={023005}
}
Most analysis of cosmic microwave background spherical harmonic coefficients ${a}_{\ensuremath{\ell}m}$ has focused on estimating the power spectrum ${C}_{\ensuremath{\ell}}=⟨|{a}_{\ensuremath{\ell}m}{|}^{2}⟩$ rather than the coefficients themselves. We present a minimum-variance method for measuring ${a}_{\ensuremath{\ell}m}$ given anisotropic noise, incomplete sky coverage and foreground contamination, and apply it to the Wilkinson Microwave Anisotropy Probe (WMAP) data. Our method is shown… Expand
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