Inflationary study of non-Gaussianity using two-dimensional geometrical measures of CMB temperature maps
Cosmology and Nongalactic Astrophysics
2018-07-25 v2 High Energy Physics - Theory
Abstract
In this work we effectively calculated the two-dimensional Minkowski functionals for cosmic microwave background (CMB) temperature maps generated by single field models of inflation with a standard kinetic term. We started with calculation of the bispectrum of initial perturbations and then calculated the two-dimensional configuration space cubic moments for temperature fluctuations. These cubic moments give rise to first order non-Gaussian correction terms to the Minkowski functionals. Thus, we developed a robust mechanism to predict the amount of non-Gaussianity generated by inflation in the CMB temperature maps using Minkowski functionals.
Keywords
Cite
@article{arxiv.1806.04534,
title = {Inflationary study of non-Gaussianity using two-dimensional geometrical measures of CMB temperature maps},
author = {M. Junaid and D. Pogosyan},
journal= {arXiv preprint arXiv:1806.04534},
year = {2018}
}
Comments
arXiv admin note: substantial text overlap with arXiv:1506.01212