$f(T,B)$ cosmography for high redshifts

TL;DR

This paper develops a cosmographic approach within $f(T,B)$ gravity to analyze high-redshift cosmology, constraining models with observational data and reducing degeneracy among proposed models.

Contribution

It introduces a viable $f(T,B)$ cosmological model that reduces degeneracy and is consistent with multiple observational datasets.

Findings

The model fits observational data well.

Degeneracy among $f(T,B)$ models is reduced.

The approach is viable for high-redshift cosmology.

Abstract

In light of the statistical performance of cosmological observations, in this work we present the cosmography in $f(T,B)$ gravity. In this scenario we found a cosmological viable standard case that allows to reduce the degeneracy between several $f(T,B)$ models already proposed in the literature. Furthermore, we constrain this model using Pantheon SNeIa compilation, Cosmic Chronometers and a newly GRB calibrated data sample. We found that with an appropriate strategy for including the cosmographic parameter, we do produce a viable cosmology with our model within $f(T,B)$ gravity.