68 citations · 618 across the 36 of their papers we have counts for
7 papers · 1 filter
Stable Gravastars of Anisotropic Dark Energy
R. Chan, M. F. A. da Silva, P. Rocha +1
Dynamical models of prototype gravastars made of phantom energy are constructed, in which an infinitely thin spherical shell of a perfect fluid with the equation of state $p = (1-γ…
Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity
P. Rocha, R. Chan, M. F. A. da Silva +1
Dynamical models of prototype gravastars are constructed and studied. The models are the Visser-Wiltshire three-layer gravastars, in which an infinitely thin spherical shell of a p…
Dressing a Naked Singularity: an Example
C. F. C. Brandt, R. Chan, M. F. A. da Silva +1
Considering the evolution of a perfect fluid with self-similarity of the second kind, we have found that an initial naked singularity can be trapped by an event horizon due to coll…
Gravitational Collapse of a Massless Scalar Field and a Perfect Fluid with Self-Similarity of the First Kind in (2+1) Dimensions
F. I. M. Pereira, R. Chan
Self-similar solutions of a collapsing perfect fluid and a massless scalar field with kinematic self-similarity of the first kind in 2+1 dimensions are obtained. Their local and gl…
Bounded excursion stable gravastars and black holes
P. Rocha, A. Y. Miguelote, R. Chan +3
Dynamical models of prototype gravastars were constructed in order to study their stability. The models are the Visser-Wiltshire three-layer gravastars, in which an infinitely thin…
Star Models with Dark Energy
R. Chan, M. F. A. da Silva, J. F. Villas da Rocha
We have constructed star models consisting of four parts: (i) a homogeneous inner core with anisotropic pressure (ii) an infinitesimal thin shell separating the core and the envelo…