New observational constraints on f(R) gravity from cosmic chronometers

By Rafael C. Nunes, Supriya Pan, Emmanuel N. Saridakis, E. Abreu. 2016

185 citations recorded by the source corpus.

We use the recently released cosmic chronometer data and the latest measured value of the local Hubble parameter, combined with the latest joint light curves of Supernovae Type Ia, and Baryon Acoustic Oscillation distance measurements, in order to impose constraints on the viable and most used f(R) gravity models. We consider four f(R) models, namely the Hu-Sawicki, the Starobinsky, the Tsujikawa, and the exponential one, and we parametrize them introducing a distortion parameter b that quantifies the deviation from ΛCDM cosmology. Our analysis reveals that a small but non-zero deviation from ΛCDM cosmology is slightly favored, with the corresponding fittings exhibiting very efficient AIC and BIC Information Criteria values. Clearly, f(R) gravity is consistent with observations, and it can serve as a candidate for modified gravity.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Oceanography

View Paper: https://www.semanticscholar.org/paper/2d5b9f2c2d4527c62a7e3f7cc5f1c30e72cf295a

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Citations in the corpus

Holographic dark energy through Tsallis entropy (2018, background): “, N), and with C being the involved covariance matrix (see [70, 71] for more details).”
Setting the Stage for Cosmic Chronometers. II. Impact of Stellar Population Synthesis Models Systematics and Full Covariance Matrix (2020, background): “…with other standard probes (Moresco et al. 2012a; Seikel et al. 2012; Capozziello et al. 2014; Sapone et al. 2014; Valkenburg et al. 2014; Nunes et al. 2016; L’Huillier & Shafieloo 2017; Moresco & Marulli 2017; Solà et al. 2017; Yang et al. 2018; Lin et al. 2019), to explore a possible…”
On the Hubble Constant Tension in the SNe Ia Pantheon Sample (2021, methodology): “A probable scenario entails the use of teleparallel equivalent general relativity (Nunes et al. 2016; Nunes 2018; Benetti et al. 2021), where the torsion tensor assumes a key role, while another possible explanation relies on modified theories of gravity, thus requiring the use of a function of the…”
HUBBLE PARAMETER MEASUREMENT CONSTRAINTS ON THE REDSHIFT OF THE DECELERATION–ACCELERATION TRANSITION, DYNAMICAL DARK ENERGY, AND SPACE CURVATURE (2016, methodology): “There are many other compilations of H(z) data available in the literature (see, e.g., Meng et al. 2015; Cai et al. 2014; Solà et al. 2016; Yu & Wang 2016; Duan et al. 2016; Qi et al. 2016; Nunes et al. 2016; Zhang & Xia 2016).”
Structure formation in f(T) gravity and a solution for H0 tension (2018, background): “These data points are summarized in table I of [78].”