Performance of XFaster likelihood in real CMB experiments

Details Performance of XFaster likelihood in real CMB experiments Performance of XFaster likelihood in real CMB experiments

2010-08-29

arxiv.org/abs/1008.4948v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

16 pages, 8 figures, 1 table, submitted to MNRAS

Scientific paper

We assess the strengths and weaknesses of several likelihood formalisms, including the XFaster likelihood. We compare the performance of the XFaster likelihood to that of the Offset Lognormal Bandpower likelihood on simulated data for the Planck satellite. Parameters estimated with these two likelihoods are in good agreement. The advantages of the XFaster likelihood can therefore be realized without compromising performance.

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