101 citations · 353 across the 6 of their papers we have counts for
6 papers
Clustering Properties of Dynamical Dark Energy Models
P. P. Avelino, L. M. G. Beca, C. J. A. P. Martins
We provide a generic but physically clear discussion of the clustering properties of dark energy models. We explicitly show that in quintessence-type models the dark energy fluctua…
Dynamics of perfect fluid Unified Dark Energy models
L. M. G. Beca, P. P. Avelino
In this paper we show that a \emph{one-to-one} correspondence exists between any dark energy model and an equivalent (from a cosmological point of view, in the absence of perturbat…
The Limit of the Generalized Chaplygin Gas Scenario
P. P. Avelino, L. M. G. Beca, J. P. M. de Carvalho +1
We explicitly demonstrate that, contrary to recent claims, the dynamics of a generalized Chaplygin gas model with an equation of state (where is a positive constant) is…
The onset of the non-linear regime in unified dark matter models
P. P. Avelino, L. M. G. Beca, J. P. M. de Carvalho +2
We discuss the onset of the non-linear regime in the context of unified dark matter models involving a generalised Chaplygin gas. We show that the transition from dark matter-like…
The Role of Baryons in Unified Dark Matter Models
L. M. G. Beca, P. P. Avelino, J. P. M. de Carvalho +1
We discuss the importance of including baryons in analyses of unified dark matter scenarios, focusing on toy models involving a generalized Chaplygin gas. We determine observationa…
Alternatives to Quintessence Model Building
P. P. Avelino, L. M. G. Beca, J. P. M. de Carvalho +2
We discuss the issue of toy model building for the dark energy component of the universe. Specifically, we consider two generic toy models recently proposed as alternatives to quin…