Electronic Resource

Non-linear data analysis on the sphere : the quest for anomalies in the cosmic microwave background

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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.

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Ketersediaan

Informasi Detail

Judul Seri

Springer Theses

No. Panggil

E1640

Penerbit

Switzerland : Springer Cham., 2013

Deskripsi Fisik

xii, 126 hlm.

Bahasa

English

ISBN/ISSN

9783319003092

Klasifikasi

NONE

Tipe Isi

text

Tipe Media

computer

Tipe Pembawa

online resource

Edisi

-

Subjek

Kosmologi Modern
Fisika : Metode Matematika

Info Detail Spesifik

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Pernyataan Tanggungjawab

Gregor Rossmanith

Versi lain/terkait

Lampiran Berkas

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