Inflationary study of non-Gaussianity using two-dimensional geometrical measures of CMB temperature maps

Autor:	Junaid, M., Pogosyan, D.
Rok vydání:	2018
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
Zdroj:	Phys. Rev. D 98, 023519 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.98.023519
Popis:	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. Comment: arXiv admin note: substantial text overlap with arXiv:1506.01212
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1806.04534 Zobrazit plný text záznamu View this record from Arxiv