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Title: | A data-driven reconstruction of Horndeski gravity via the Gaussian processes |
Authors: | Bernardo, Reginald Christian Said, Jackson |
Keywords: | Gaussian processes Dark energy (Astronomy) Gravitation Differentiable dynamical systems Lagrange equations |
Issue Date: | 2021 |
Publisher: | Institute of Physics Publishing Ltd |
Citation: | Bernardo, R. C., & Said, J. L. (2021). A data-driven Reconstruction of Horndeski gravity via the Gaussian processes. Journal of Cosmology and Astroparticle Physics, 2021(09), 014. |
Abstract: | We reconstruct the Hubble function from cosmic chronometers, supernovae, and baryon acoustic oscillations compiled data sets via the Gaussian process (GP) method and use it to draw out Horndeski theories that are fully anchored on expansion history data. In particular, we consider three well-established formalisms of Horndeski gravity which single out a potential through the expansion data, namely: quintessence potential, designer Horndeski, and tailoring Horndeski. We discuss each method in detail and complement it with the GP reconstructed Hubble function to obtain predictive constraints on the potentials and the dark energy equation of state. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/89409 |
Appears in Collections: | Scholarly Works - InsSSA |
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File | Description | Size | Format | |
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A_data_driven_reconstruction_of_Horndeski_gravity_via_the_Gaussian_processes_2021.pdf Restricted Access | 5.74 MB | Adobe PDF | View/Open Request a copy |
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