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Deconvolution Map-Making for Cosmic Microwave Background Observations | | Charmaine Armitage
; Benjamin D. Wandelt
; | | Date: |
5 Oct 2004 | | Journal: | Phys.Rev. D70 (2004) 123007 | | Subject: | astro-ph | | 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. | | Source: | arXiv, astro-ph/0410092 | | Services: | Forum | Review | PDF | Favorites | |
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