An Anisotropic Model for the Universe
Morgan Le Delliou, Maksym Deliyergiyev, Antonino Del Popolo
TL;DR
This paper explores a Bianchi type I anisotropic universe model to explain potential anisotropies and unexplained features in the CMB, proposing a new Hubble law deviation from the standard Lambda-CDM model.
Contribution
It introduces a novel anisotropic universe model based on Bianchi type I geometry to predict deviations in the Hubble law and analyze CMB anomalies.
Findings
Derived a new Hubble law for anisotropic universe models.
Compared anisotropic model predictions with Lambda-CDM.
Discussed implications for CMB and redshift measurements.
Abstract
Motivated by the back-reaction debate, and~some unexplained characteristics of the CMB, we investigate the possibility of some anisotropy in the universe observed around us. To this aim, we build up a novel prediction for the Hubble law for the late universe from a Bianchi type I model, {taken as proof of concept,} transcribing the departure of such model from a CDM model. We~dicussed the redshift measurement in this universe, and~finally formalized the Hubble diagram.
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