A hybrid model of viscous and Chaplygin gas to tackle the Universe acceleration

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dc.contributor.authorHernández-Almada, A.
dc.contributor.authorGarcía-Aspeitia, Miguel A.
dc.contributor.authorRodríguez-Meza, M. A.
dc.contributor.authorMotta, V.
dc.date.accessioned2022-11-30T02:46:26Z
dc.date.available2022-11-30T02:46:26Z
dc.date.issued2021
dc.description.abstractMotivated by two seminal models proposed to explain the Universe acceleration, this paper is devoted to study a hybrid model which is constructed through a generalized Chaplygin gas with the addition of a bulk viscosity. We call the model a viscous generalized Chaplygin gas (VGCG) and its free parameters are constrained through several cosmological data like the Observational Hubble Parameter, Type Ia Supernovae, Baryon Acoustic Oscillations, Strong Lensing Systems, HII Galaxies and using Joint Bayesian analysis. In addition, we implement a Om-diagnostic to analyze the VGCC dynamics and its difference with the standard cosmological model. The hybrid model shows important differences when compared with the standard cosmological model. Finally, based on our Joint analysis we find that the VGCG could be an interesting candidate to alleviate the well-known Hubble constant tension.en_ES
dc.facultadFacultad de Cienciasen_ES
dc.file.nameHernandez_Hyb2021.pdf
dc.identifier.citationHernández-Almada, A., García-Aspeitia, M.A., Rodríguez-Meza, M.A. et al. A hybrid model of viscous and Chaplygin gas to tackle the Universe acceleration. Eur. Phys. J. C 81, 295 (2021). https://doi.org/10.1140/epjc/s10052-021-09104-wen_ES
dc.identifier.doihttps://doi.org/10.1140/epjc/s10052-021-09104-w
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/7370
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access This article is licensed under a Creative Commons Attribution 4.0 International
dc.sourceThe European Physical Journal C
dc.titleA hybrid model of viscous and Chaplygin gas to tackle the Universe acceleration
dc.typeArticulo
uv.departamentoInstituto de Fisica y Astronomia

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