Non-linear Data Analysis on the Sphere

The Quest for Anomalies in the Cosmic Microwave Background

  • Gregor Rossmanith

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xii
  2. Gregor Rossmanith
    Pages 1-19
  3. Gregor Rossmanith
    Pages 45-52
  4. Gregor Rossmanith
    Pages 53-77
  5. Gregor Rossmanith
    Pages 87-107
  6. Gregor Rossmanith
    Pages 109-119
  7. Gregor Rossmanith
    Pages 121-122
  8. Back Matter
    Pages 123-126

About this book

Introduction

This work deals with the search for signatures of non-Gaussianities in the cosmic microwave background (CMB). Probing Gaussianity in the CMB addresses one of the key questions in modern cosmology because it allows us to discriminate between different models of inflation, and thus concerns a fundamental part of the standard cosmological model.
    The basic goal here is to adapt complementary methods stemming from the field of complexity science to CMB data analysis. Two key concepts, namely the method of surrogates and estimators for local scaling properties, are applied to CMB data analysis.
    All results show strong non-Gaussianities and pronounced asymmetries. The consistency of the full sky and cut sky results shows convincingly for the first time that the influence of the Galactic plane is not responsible for these deviations from Gaussianity and isotropy. The findings seriously call into question predictions of isotropic cosmologies based on the widely accepted single field slow roll inflation model.

Keywords

Analysis of Spherical Datasets Analysis of WMAP Data CMB Data Analysis CMB non-Gaussianity Method of Surrogates Probing Gaussianity in the CMB Scaling Index Method Scaling Index Statistics Testing models of inflation WMAP Satellite

Authors and affiliations

  • Gregor Rossmanith
    • 1
  1. 1.Extraterrestrial PhysicsMax Planck Institute forGarchingGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-00309-2
  • Copyright Information Springer International Publishing Switzerland 2013
  • Publisher Name Springer, Heidelberg
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-00308-5
  • Online ISBN 978-3-319-00309-2
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • About this book