Moment transport equations and their application to the perturbed universe

TL;DR

This paper reviews the moment transport equations methodology for calculating the non-gaussianity parameter $f_{NL}$, aiding in distinguishing inflationary models based on large-scale structure observations from satellite surveys.

Contribution

It introduces and reviews the application of moment transport equations to compute the $f_{NL}$ parameter in cosmology.

Findings

Methodology for calculating $f_{NL}$ using moment transport equations

Comparison of theoretical predictions with satellite survey data

Framework for discriminating inflationary models

Abstract

There are many inflationary models that allow the formation of the large-scale structure of the observable universe. The non-gaussianity parameter $f_{NL}$ is a useful tool to discriminate among these cosmological models when comparing the theoretical predictions with the satellite survey results like those from WMAP and Planck. The goal of this proceeding contribution is to review the moment transport equations methodology and the subsequent calculation of the $f_{NL}$ parameter.