155 citations · 665 across the 17 of their papers we have counts for
17 papers
On the virialization threshold for halo mass functions
Ronaldo C. Batista
In a recent study by Euclid collaboration, the halo mass function (HMF) has been fitted with accuracy better than for the CDM model. Several parameters were introduced and…
Spherical collapse of non-top-hat profiles in the presence of dark energy with arbitrary sound speed
R. C. Batista, H. P. de Oliveira, L. R. W. Abramo
We study the spherical collapse of non-top-hat matter fluctuations in the presence of dark energy with arbitrary sound speed. The model is described by a system of partial differen…
A short review on clustering dark energy
Ronaldo C. Batista
We review dark energy models which can present non-negligible fluctuations on scales smaller than Hubble radius. Both linear and nonlinear evolutions of dark energy fluctuations ar…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…
Analytical warm dark matter power spectrum on small scales
G. Pordeus-da-Silva, R. C. Batista, L. G. Medeiros
Using the Reduced Relativistic Gas (RRG) model, we analytically determine the matter power spectrum for Warm Dark Matter (WDM) on small scales, . The RRG is a si…
Repulsive Casimir force in stationary axisymmetric spacetimes
V. D. Coronell, A. E. Gonçalves, M. C. Baldiotti +1
We study the influence of stationary axisymmetric spacetimes on Casimir energy. We consider a massive scalar field and analyze its dependence on the apparatus orientation with resp…