Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data

Details Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data

2006-03-31

arxiv.org/abs/astro-ph/0603844v1

Astrophys.J. 643 (2006) 616-629

Astronomy and Astrophysics

Astrophysics

14 pages, 11 figure, to be published in ApJ

Scientific paper

10.1086/501343

We explore methods of fitting templates to cosmic microwave background (CMB) data, and in particular demonstrate the application of the total convolver algorithm as a fast method of performing a search over all possible locations and orientations of the template relative to the sky. This analysis includes investigation of issues such as chance alignments and foreground residuals. We apply these methods to compare Bianchi models of type VII_h to WMAP first year data and confirm the basic result of our 2005 paper.

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