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Gaussian processes reconstruction of the dark energy potential

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Author(s):
Jesus, J. F. ; Valentim, R. ; Escobal, A. A. ; Pereira, S. H. ; Benndorf, D.
Total Authors: 5
Document type: Journal article
Source: Journal of Cosmology and Astroparticle Physics; v. N/A, n. 11, p. 14-pg., 2022-11-01.
Abstract

Scalar Fields (SF) have emerged as natural candidates for dark energy as quintessential or phantom fields, as they are the main ingredient of inflation theories. Instead of assuming some form for the scalar field potential, however, this work reconstructs the SF potential directly from observational data, namely, Hubble and SNe Ia data. We show that two popular forms for the SF potentials, namely, the power-law and the quadratic free-field, are compatible with the reconstructions thus obtained, at least for some choices of the priors of the matter density and curvature parameters and for some redshift intervals. (AU)

FAPESP's process: 16/09831-0 - Neutron Stars populations: bayesian statistics tools
Grantee:Rodolfo Valentim da Costa Lima
Support Opportunities: Regular Research Grants
FAPESP's process: 21/01089-1 - Cherenkov Telescope Array: construction and first discoveries
Grantee:Luiz Vitor de Souza Filho
Support Opportunities: Special Projects