J-PAS: forecasts on interacting dark energy from baryon acoustic oscillations and redshift-space distortions

Abstract

We estimate the constraining power of J-PAS for parameters of an interacting dark energy cosmology. The survey is expected to map several millions of luminous red galaxies, emission line galaxies and quasars in an area of thousands of square degrees in the northern sky with precise photometric redshift measurements. Forecasts for the DESI and Euclid surveys are also evaluated and compared to J-PAS. With the Fisher matrix approach, we find that J-PAS can place constraints on the interaction parameter comparable to those from DESI, with an absolute uncertainty of about $0.02$, when the interaction term is proportional to the dark matter energy density, and almost as good, of about $0.01$, when the interaction is proportional to the dark energy density. For the equation of state of dark energy, the constraints from J-PAS are slightly better in the two cases (uncertainties $0.04$ - $0.05$ against $0.05$ - $0.07$ around the fiducial value $-1$). Both surveys stay behind Euclid but follow it closely, imposing comparable constraints in all specific cases considered.

11 pages, 8 figures, 10 tables. Accepted by MNRAS

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Cited by in corpus (9)

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• The miniJPAS survey: clusters and galaxy groups detection with AMICO
• Constraints on interacting dark energy revisited: implications for the Hubble tension
• I. Linear Interacting Dark Energy: Analytical Solutions and Theoretical Pathologies
• Interacting Dark Energy: New parametrization and observational constraints
• Interacting Dark Energy and Its Implications for Unified Dark Sector
• Qualitative probe of interacting dark energy with redshift-space distortions
• J-PAS: forecast on the primordial power spectrum reconstruction