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Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/121535
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dc.contributor.authorSandoval-Orozco, Rodrigo-
dc.contributor.authorEscamilla-Rivera, Celia-
dc.contributor.authorBriffa, Rebecca-
dc.contributor.authorSaid, Jackson-
dc.date.accessioned2024-04-29T12:00:39Z-
dc.date.available2024-04-29T12:00:39Z-
dc.date.issued2024-
dc.identifier.citationGomes, D. A., Briffa, R., Kozak, A., Said, J. L., Saal, M., & Wojnar, A. (2024). Cosmological constraints of Palatini ƒ (ℛ) gravity. Journal of Cosmology and Astroparticle Physics, 2014(01), 011.en_GB
dc.identifier.issn14757516-
dc.identifier.urihttps://www.um.edu.mt/library/oar/handle/123456789/121535-
dc.description.abstractIn this study, we investigate a Palatini f(R) gravity model featuring a quadratic term correction, aligning it with the most recent expansion rate data, with a particular focus on the latest SNIa and BAO data. Our analysis employs CC data as the fundamental dataset, complemented by contributions from the SN sample and a combination of non-overlapping transversal BAO datasets. We conduct a comprehensive MCMC analysis for each data set combination, yielding constraints on all cosmological parameters within the model. Additionally, we incorporate the latest Hubble constant value from the SH0ES Team. Finally, we present a statistical comparison between the Palatini quadratic model and ΛCDM using the AIC and BIC metrics, ultimately obtaining the constraint |α| ≤ 1049 m2. We also stress the significance of studying stellar and substellar objects for obtaining more precise constraints on modified gravity compared to those derived from cosmological observations.en_GB
dc.language.isoenen_GB
dc.publisherInstitute of Physics Publishing Ltd.en_GB
dc.rightsinfo:eu-repo/semantics/restrictedAccessen_GB
dc.subjectCosmology -- Researchen_GB
dc.subjectGravity -- Researchen_GB
dc.subjectGravitational fieldsen_GB
dc.subjectDark energy (Astronomy)en_GB
dc.subjectAstrophysics -- Data processingen_GB
dc.subjectSupernovaeen_GB
dc.subjectStatistical astronomyen_GB
dc.titleCosmological constraints of Palatini ƒ (ℛ) gravityen_GB
dc.typearticleen_GB
dc.rights.holderThe copyright of tis work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.en_GB
dc.description.reviewedpeer-revieweden_GB
dc.identifier.doi10.1088/1475-7516/2024/01/011-
dc.publication.titleJournal of Cosmology and Astroparticle Physicsen_GB
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