Work

Primordial Non‐Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large‐Scale Structure

Year: 2010

Type: article

Abstract: The most direct probe of non‐Gaussian initial conditions has come from bispectrum measurements of temperature fluctuations in the Cosmic Microwave Background and of the matter and galaxy distribution at large scales. Such bispectrum estimators are expected to continue to provide the best constraints on the non‐Gaussian parameters in future observations. We review and compare the theoretical and observational problems, current results, and future prospects for the detection of a nonvanishing primordial component in the bispectrum of the Cosmic Microwave Background and large‐scale structure, and the relation to specific predictions from different inflationary models.

Source: Advances in Astronomy

DOI: 10.1155/2010/980523

Authors: Michele Liguori, Emiliano Sefusatti, James R. Fergusson, E. P. S. Shellard

Institutions: University of Cambridge, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Physique Théorique

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,130

Funders: European Commission, Science and Technology Facilities Council