Asymptotics of LRS Bianchi type I cosmological models with elastic matter

Author(s)
Simone Calogero, Johannes Markus Heinzle
Abstract

In this paper, we report on results in the study of spatially homogeneous cosmological models with elastic matter. We show that the behavior of elastic solutions is fundamentally different from that of perfect fluid solutions already in the case of locally rotationally symmetric Bianchi type I models; this is true even when the elastic material resembles a perfect fluid very closely. In particular, the approach to the initial singularity is characterized by an intricate oscillatory behavior of the scale factors, while the future asymptotic behavior is described by isotropization rates that differ significantly from those of perfect fluids.

Organisation(s)
Gravitational Physics
External organisation(s)
Universidad de Granada
Journal
General Relativity and Gravitation
Volume
42
Pages
1491-1512
No. of pages
22
ISSN
0001-7701
DOI
https://doi.org/10.1007/s10714-009-0922-7
Publication date
2010
Peer reviewed
Yes
Austrian Fields of Science 2012
103036 Theoretical physics, 103028 Theory of relativity, 103019 Mathematical physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/asymptotics-of-lrs-bianchi-type-i-cosmological-models-with-elastic-matter(339851ca-f41e-4a9a-93f8-649800c544ef).html