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The Matter Power Spectrum

Published online by Cambridge University Press:  26 May 2016

J. A. Peacock
J. A. Peacock*
Affiliation:
Institute for Astronomy, University of Edinburgh Royal Observatory, Edinburgh EH9 3HJ, UK

Abstract

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The main tools describing the formation of large-scale structure are reviewed. Detailed emphasis is given to the Cold Dark Matter model, since this appears to be a close match to observation. A consistent normalization that satisfies both CMB constraints and the cluster abundance requires Ωm ⋍ 0.35 for a flat universe and scale-invariant fluctuations. Discrepancies between observed galaxy power spectra and CDM predictions are discussed; a heuristic model for galaxy bias is proposed that potentially allows such scale-dependent bias to be understood.

Type
Part V: Large Scale Structure
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 145 - 157
Copyright
Copyright © Astronomical Society of the Pacific 2005 

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