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arXiv · astro-ph/0410092

Deconvolution Map-Making for Cosmic Microwave Background Observations

Charmaine Armitage·Benjamin D. Wandelt
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Abstract

We describe a new map-making code for cosmic microwave background (CMB) observations. It implements fast algorithms for convolution and transpose convolution of two functions on the sphere (Wandelt & Górski 2001). Our code can account for arbitrary beam asymmetries and can be applied to any scanning strategy. We demonstrate the method using simulated time-ordered data for three beam models and two scanning patterns, including a coarsened version of the WMAP strategy. We quantitatively compare our results with a standard map-making method and demonstrate that the true sky is recovered with high accuracy using deconvolution map-making.

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Charmaine Armitage, Benjamin D. Wandelt. 2004-10-13. Deconvolution Map-Making for Cosmic Microwave Background Observations. https://doi.org/10.1103/physrevd.70.123007

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