14 citations · 26 across the 5 of their papers we have counts for
5 papers
Inhomogeneity of the LTB models
Peter Sundell, Iiro Vilja
The Lemaítre-Toman-Bondi (LTB) models have reported to suffer from incompatibility with cosmological observations and fine-tuning of the observer's location. Further analysis of th…
Anisotropic cosmology and inflation from tilted Bianchi IX model
Peter Sundell, Tomi Koivisto
The dynamics of the tilted axisymmetric Bianchi IX cosmological models are explored allowing energy flux in the source fluid. The Einstein equations and the continuity equation are…
Can a void mimic the in CDM?
Peter Sundell, Edvard Mörtsell, Iiro Vilja
We investigate Lemaître-Tolman-Bondi (LTB) models, whose early time evolution and bang time are homogeneous and the distance - redshift relation and local Hubble parameter are inhe…
Inhomegeneous cosmological models and fine-tuning of the initial state
Peter Sundell, Iiro Vilja
Inhomogeneous cosmological models are often reported to suffer from a fine-tuning problem because of the observer's location. We study if this is a generic feature in the Lemaître-…
Stability of non-homegeneous models and fine tuning of initial state
P. Sundell, I. Vilja
We apply phase space analysis to inhomogeneous cosmological model given by Lemaître-Tolman model. We describe some general conditions required to interpret the model stable enough…