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8 - Observations of Large-Scale Structure

Published online by Cambridge University Press:  10 December 2020

Ruth Durrer
Ruth Durrer
Affiliation:
Université de Genève
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Summary

In this chapter we present the analysis of the large scale matter distribution within linear perturbation theory in a fully relativistic way. We take into account that only directions and redshifts are observable while lengths scales are always inferred from a cosmological model. We first introduce the traditional density and redshift space distortion contribution to the observed uctuations and then proceed to discuss the smaller lensing and large scale relativistic terms. We express the clustering properties of matter in terms of directly observable quantities and study their scale and redshift dependence. We also discuss ‘intensity mapping’ a new observational technique which will hopefully bear fruit in the near future. Also this chapter has been newly added in the second edition.

Keywords

Cosmic large scale structure (LSS)redshift space distortionsbaryon acoustic oscillationsgalaxy biaslensinglarge scale relativistic effectscorrelation functionmultipoles of the correlation functionnumber countsperturbations of the luminosity distancemagnification biasintensity mapping
Type
Chapter
Information
The Cosmic Microwave Background , pp. 296 - 328
Publisher: Cambridge University Press
Print publication year: 2020

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