An Anisotropic Model for the Universe

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 ΛCDM model. We dicussed the redshift measurement in this universe, and finally formalized the Hubble diagram.

Keywords

• anisotropic model
• Bianchi type I models
• back-reaction debate
• CMB anomalies
• Hubble diagram