Abstract

Motivated 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.

Details

Title
A hybrid model of viscous and Chaplygin gas to tackle the Universe acceleration
Author
Hernández-Almada, A 1   VIAFID ORCID Logo  ; García-Aspeitia, Miguel A 2 ; Rodríguez-Meza, M A 3 ; Motta, V 4 

1  Universidad Autónoma de Querétaro, Facultad de Ingeniería, Centro Universitario Cerro de las Campanas, Santiago de Querétaro, Mexico (GRID:grid.412861.8) (ISNI:0000 0001 2207 2097) 
2  Unidad Académica de Física, Universidad Autónoma de Zacatecas, Zacatecas, Mexico (GRID:grid.412865.c) (ISNI:0000 0001 2105 1788); Consejo Nacional de Ciencia y Tecnología, Mexico City, Mexico (GRID:grid.418270.8) (ISNI:0000 0004 0428 7635) 
3  Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Mexico City, Mexico (GRID:grid.419194.0) (ISNI:0000 0001 2300 5515) 
4  Universidad de Valparaíso, Facultad de Ciencias, Instituto de Física y Astronomía, Valparaiso, Chile (GRID:grid.412185.b) (ISNI:0000 0000 8912 4050) 
Publication year
2021
Publication date
Apr 2021
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1140/epjc/s10052-021-09104-w
ProQuest document ID
2509906549
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.