212 citations · 315 across the 4 of their papers we have counts for
4 papers
Constraining Born-Infeld models of dark energy with CMB anisotropies
L. Raul Abramo, Fabio Finelli, Thiago S. Pereira
We study the CMB constraints on two Dark Energy models described by scalar fields with different Lagrangians, namely a Klein-Gordon and a Born-Infeld field. The speed of sound of f…
Cosmological dynamics of the tachyon with an inverse power-law potential
L. Raul W. Abramo, Fabio Finelli
We investigate tachyon dynamics with an inverse power-law potential . We find global attractors of the dynamics leading to a dust behaviour for and to a…
Attractors and Isocurvature Perturbations in Quintessence Models
L. R. Abramo, F. Finelli
We investigate the evolution of cosmological perturbations in scenarios with a quintessence scalar field, both analytically and numerically. In the tracking regime for quintessence…
Back Reaction of Gravitational Radiation on the Schwarzschild Black Hole
L. R. Abramo, F. Finelli
We address some of the issues that appear in the study of back reaction in Schwarzschild backgrounds. Our main object is the effective energy-momentum tensor (EEMT) of gravitationa…