Astrophysics and Space Science

, Volume 299, Issue 4, pp 343–370 | Cite as

Full Causal Bulk Viscous LRS Bianchi I With Time Varying Constants

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Abstract

In this paper we study the evolution of a LRS Bianchi I Universe, filled with a bulk viscous cosmological fluid in the presence of time varying constants “but” taking into account the effects of a c-variable into the curvature tensor. We find that the only physical models are those which “constants” G and c are growing functions on time t, while the cosmological constant Λ is a negative decreasing function. In such solutions the energy density obeys the ultrastiff matter equation of state i.e. ω = 1.

Keywords

time varying constants LRS Bianchi I cosmologies bulk viscous fluids 
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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Dept. Física ETS Arquitectura UPMEspañaSpain

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