4 papers
Black Hole Persistence in Scalar Tensor Theories
Balkar Yildirim, Alan Albert Coley
We construct a perturbative scalar-tensor solution describing a central inhomogeneity embedded in an evolving cosmological background, with the aim of studying black hole persisten…
Black Hole Persistence in New General Relativity
Balkar Yildirim, Alan Albert Coley, Diego Fernando López
We investigate whether black holes can persist through the bounce with a minimal scale factor in a non-singular cosmology, whereby black holes from a previous contracting phase sur…
Global dynamics of two models for Quintom Friedman-Lemaître-Robertson-Walker Universes
Genly Leon, Alan Coley, Andronikos Paliathanasis +2
We comprehensively analyze the dynamics for the gravitational field equations for the Chiral-Quintom theory in a Friedman-Lemaître-Robertson-Walker cosmology with an additional mat…
The dynamics of scalar-field Quintom cosmological models
Jonathan Tot, Balkar Yildirim, Alan Coley +1
We shall present a complete (compactified) dynamical systems analysis of the Quintom model comprised of an interacting quintessence scalar field and a phantom. We find a range for…