Viscous cosmological models with particle creation in Brans-Dicke theory

被引：0
|
作者：
G.P. Singh
R.V. Deshpande
T. Singh
机构：
[1] Visvesvaraya Regional College of Engineering,Department of Mathematics
[2] Priyadarshini College of Engineering and Architecture,Department of Applied Mathematics
[3] Institute of Technology,Department of Applied Mathematics
[4] B.H.U.,undefined
来源：
Astrophysics and Space Science | 2002年 / 282卷
关键词：
Cosmological Model; Bulk Viscosity; Particle Number Density; Particle Creation; Total Particle Number;
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学科分类号：
摘要：
The effect of bulk viscosity on the evolution of the spatially flat Friedmann-Robertson-Walker models in the context of open thermodynamical systems, which allow particle creation, is analyzed within the framework of Brans-Dicke theory. Particle creation and bulk viscosity have been considered as separated irreversible processes. To accommodate the viscous pressure and creation pressure, which is associated with creation of matter out of gravitational field, the energy-momentum tensor is modified. Dynamical behaviour of the models have been discussed.
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页码：489 / 498
页数：9
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