Future constraints on the Hu-Sawicki modified gravity scenario
Matteo Martinelli, Alessandro Melchiorri, Olga Mena, Valentina, Salvatelli, Zahara Girones
TL;DR
This paper evaluates current and future constraints on the Hu-Sawicki modified gravity model, highlighting how upcoming measurements could significantly tighten bounds and distinguish it from the standard cosmological model.
Contribution
It provides an analysis of how future cosmological data can improve constraints on the Hu-Sawicki modified gravity scenario compared to current limits.
Findings
Current data allows deviations from the cosmological constant.
Future measurements will greatly improve constraints.
The model can reproduce late-time acceleration and evade solar system tests.
Abstract
We present current and future constraints on the Hu and Sawicki modified gravity scenario. This model can reproduce a late time accelerated universe and evade solar system constraints. While current cosmological data still allows for distinctive deviations from the cosmological constant picture, future measurements of the growth of structure combined with Supernova Ia luminosity distance data will greatly improve present constraints.
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