Towards reconstruction of unlensed, intrinsic cosmic microwave background power spectra from lensed map

@article{Pal2014TowardsRO,
  title={Towards reconstruction of unlensed, intrinsic cosmic microwave background power spectra from lensed map},
  author={Barun Kumar Pal and Hamsa Padmanabhan and Supratik Pal},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={439},
  pages={3022-3032}
}
We propose a method to extract the unlensed, intrinsic CMB temperature and polarization power spectra from the observed (i.e., lensed) spectra. Using a matrix inversion technique, we demonstrate how one can reconstruct the intrinsic CMB power spectra directly from lensed data for both flat sky and full sky analyses. The delensed spectra obtained by the technique are calibrated against the Code for Anisotropies in the Microwave Background (CAMB) using WMAP 7-year best-fit data and applied to… Expand
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