Open AccessModel-independent Estimators for the Statistical Anisotropy of the Cosmic Microwave Background
Author(s) -
Yuri Shtanov,
Denys Savchenko
Publication year - 2022
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe56.7.750
Subject(s) - estimator , cosmic microwave background , anisotropy , statistical power , physics , spectral density , statistical physics , cosmic cancer database , statistical hypothesis testing , astrophysics , computational physics , statistics , mathematics , optics
We construct estimators for testing the statistical anisotropy of the cosmic microwave background arising due to a quadrupolescale-independent anisotropy in the primordial power spectrum. The estimators do not require the knowledge of basic cosmological parameters. We determine the sensitivity of the constructed estimators to the magnitude of the statistical anisotropy and perform test simulations that confirm our theoretical estimates.