Asymptotics of LRS Bianchi type I cosmological models with elastic matter

Autor(en)

Simone Calogero, Johannes Markus Heinzle

Abstrakt

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(en)

Gravitationsphysik

Externe Organisation(en)

Universidad de Granada

Journal

General Relativity and Gravitation

Band

42

Seiten

1491-1512

Anzahl der Seiten

22

ISSN

0001-7701

DOI

https://doi.org/10.1007/s10714-009-0922-7

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik, 103028 Relativitätstheorie, 103019 Mathematische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/339851ca-f41e-4a9a-93f8-649800c544ef