2017/02/25 by S. Capozziello, G. Lambiase, E. N. Saridakis · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc
paper · pdf · doi:10.1140/epjc/s10052-017-5143-8
10 pages, 1 figure
arxiv created 2017/02/25 · arxiv updated 2017/09/20
We use BBN observational data on primordial abundance of 4He to constrain f(T) gravity. The three most studied viable f(T) models, namely the power law, the exponential and the square-root exponential are considered, and the BBN bounds are adopted in order to extract constraints on their free parameters. For the power-law model, we find that the constraints are in agreement with those acquired using late-time cosmological data. For the exponential and the square-root exponential models, we show that for realiable regions of parameters space they always satisfy the BBN bounds. We conclude that viable f(T) models can successfully satisfy the BBN constraints.