Proceedings of the Particle Physics and Early Universe Conference (PPEUC).
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Cosmological Parameter Estimation from the CMB

Andy Taylor, Alan Heavens, Bill Ballinger

Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, U.K.

Max Tegmark

Institute for Advanced Study, Princeton, U.S.A


We discuss the problems of applying Maximum Likelihood methods to the CMB and how one can make it both efficient and optimal. The solution is a generalised eigenvalue problem that allows virtually no loss of information about the parameter being estimated, but can allow a substantial compression of the data set. We discuss the more difficult question of simultaneous estimation of many parameters, and propose solutions. A much fuller account of most of this work is available (Tegmark, Taylor & Heavens (1997)).

PPEUC Proceedings
Fri Jun 20 15:22:24 BST 1997