Cosmic Microwave Background: Past, Future, and Present
Scott Dodelson
TL;DR
This paper reviews the origin and evolution of CMB anisotropies, discusses current data indicating a flat universe, and introduces new techniques for comparing experimental results, emphasizing future precise measurements of cosmological parameters.
Contribution
It introduces new visual comparison techniques for CMB experiments and analyzes current data to support a flat universe hypothesis.
Findings
Current data strongly suggest a flat universe
New visual comparison methods for experiments
Present data are not contaminated by systematics
Abstract
I explain the origin and evolution of anisotropies in the Cosmic Microwave Background (CMB) and argue that upcoming experiments will measure cosmological and fundamental parameters very accurately. Most of the paper focuses on present data, which strongly suggest that the universe is flat. Several arguments are given to prove that present data sets are not contaminated by systematics. New techniques to compare different experiments visually are introduced. These are illustrated for two years of the MSAM and Python experiments.
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