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Paper detail

CMB Power Spectrum Likelihood with ILC

We extend the ILC method in harmonic space to include the error in its CMB estimate. This allows parameter estimation routines to take into account the effect of the foregrounds as well as the errors in their subtraction in conjunction with the ILC method. Our method requires the use of a model of the foregrounds which we do not develop here. The reduction of the foreground level makes this method less sensitive to unaccounted for errors in the foreground model. Simulations are used to validate the calculations and approximations used in generating this likelihood function.

preprint2012arXivOpen access
Jason DickGuillaume CastexJacques Delabrouille
astro-ph.CO
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Jason DickGuillaume CastexJacques Delabrouille

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