46 citations · 105 across the 9 of their papers we have counts for
9 papers
Standard Perturbation Theory for Interacting Dark Sector cosmologies I: Breakdown of Einstein de Sitter kernels
Matheus Wolney, Gabriel Sampaio, Humberto Borges +2
Interacting dark sector (IDS) models provide a commonly explored extension of the standard CDM cosmology, allowing for non-gravitational energy--momentum exchange between cold d…
The miniJPAS and J-NEP surveys: Machine learning for star-galaxy separation
Ana Paula Jeakel, Gabriel Vieira dos Santos, Valerio Marra +27
We present a supervised machine learning classification of sources from the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) Pathfinder datasets: miniJP…
Forecasting constraints on quintessential inflation from future generation of galaxy and CMB surveys
G. Rodrigues, F. B. M. dos Santos, S. Santos da Costa +5
We investigate the constraining power of future CMB and galaxy surveys on models of quintessential inflation realized within the framework of -attractors. We analyze how these f…
Reconstructing the redshift evolution of Type Ia supernovae absolute magnitude
Rodrigo von Marttens, Javier Gonzalez, Jailson Alcaniz
This work investigates a potential time dependence of the absolute magnitude of Type Ia Supernovae (SN Ia). Employing the Gaussian Process approach, we obtain the SN Ia absolute ma…
Interacting dark sector with quadratic coupling: theoretical and observational viability
Jaelsson S. Lima, Rodrigo von Marttens, Luciano Casarini
Models proposing a non-gravitational interaction between dark energy (DE) and dark matter (CDM) have been extensively studied as alternatives to the standard cosmological model. A…
Scale-dependent and background-preserving gravity from an action: cosmological tests
Wiliam S. Hipólito-Ricaldi, Rodrigo von Marttens, Felipe de Melo-Santos +1
We investigate the observational implications of a gravitational model wherein the gravitational constant and the cosmological constant exhibit scale-dependent behavior at…
J-PAS: forecasts on interacting vacuum energy models
V. Salzano, C. Pigozzo, M. Benetti +21
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…
A model-independent reconstruction of dark sector interactions
Rodrigo von Marttens, Javier E. Gonzalez, Jailson Alcaniz +2
Relaxing the conventional assumption of a minimal coupling between the dark matter (DM) and dark energy (DE) fields introduces significant changes in the predicted evolution of the…
Null test for interactions in the dark sector
Rodrigo von Marttens, Valerio Marra, Luciano Casarini +2
Since there is no known symmetry in Nature that prevents a non-minimal coupling between the dark energy (DE) and cold dark matter (CDM) components, such a possibility constitutes a…