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Título: | J-PAS: forecasts on interacting vacuum energy models |
Autor: | Salzano, V.; Pigozzo, C.; Benetti, M.; Borges, H. A.; von Marttens, R.; Carneiro, S.; Alcaniz, J. S.; Fabris, J. C.; Tsujikawa, S.; Benítez, Narciso CSIC ORCID; Bonoli, Silvia; Cenarro, A. J.; Cristóbal-Hornillos, David ; Dupke, Renato A.; Ederoclite, Alessandro; López-Sanjuan, Carlos; Marín-Franch, Antonio; Marra, V.; Moles, Mariano ; Mendes de Oliveira, Claudia; Sodré, L. Jr.; Taylor, Keith; Varela, Jesús ; Vázquez Ramió, H. | Palabras clave: | Cosmological parameters from LSS Dark energy theory Galaxy surveys |
Fecha de publicación: | 23-sep-2021 | Editor: | IOP Publishing | Citación: | Journal of Cosmology and Astroparticle Physics (JCAP) (9): 033 (2021) | Resumen: | The next generation of galaxy surveys will allow us to test some fundamental aspects of the standard cosmological model, including the assumption of a minimal coupling between the components of the dark sector. In this paper, we present the Javalambre Physics of the Accelerated Universe Astrophysical Survey (J-PAS) forecasts on a class of unified models where cold dark matter interacts with a vacuum energy, considering future observations of baryon acoustic oscillations, redshift-space distortions, and the matter power spectrum. After providing a general framework to study the background and linear perturbations, we focus on a concrete interacting model without momentum exchange by taking into account the contribution of baryons. We compare the J-PAS results with those expected for DESI and Euclid surveys and show that J-PAS is competitive to them, especially at low redshifts. Indeed, the predicted errors for the interaction parameter, which measures the departure from a ΛCDM model, can be comparable to the actual errors derived from the current data of cosmic microwave background temperature anisotropies. © 2021 IOP Publishing Ltd and Sissa Medialab. | Versión del editor: | http://dx.doi.org/10.1088/1475-7516/2021/09/033 | URI: | http://hdl.handle.net/10261/260002 | DOI: | 10.1088/1475-7516/2021/09/033 | ISSN: | 1475-7516 |
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