Understanding the evolution of dark energy poses a significant challenge in modern cosmology, as it is responsible for the universe's accelerated expansion. In this study, we focus on a specific f(T) cosmological model and analyze its behavior using observational data, including 31 data points from the CC dataset, 1048 points from the Pantheon SNe Ia samples, and 6 points from the BAO dataset. By considering a linear f(T) model with an additional constant term, we derive the expression for the Hubble parameter as a function of cosmic redshift for non-relativistic pressureless matter. We obtain the best-fit values for the Hubble constant, H0, and the model parameters α and β, indicating a stable model capable of explaining late-time cosmic acceleration without invoking a dark energy component. This is achieved through modifying field equations to account for the observed accelerated expansion of the universe.
@article{arxiv.2405.07357,
title = {Exploring late-time cosmic acceleration: A study of a linear $f(T)$ cosmological model using observational data},
author = {A. Zhadyranova and M. Koussour and S. Bekkhozhayev and V. Zhumabekova and J. Rayimbaev},
journal= {arXiv preprint arXiv:2405.07357},
year = {2024}
}