EAS Publications Series
Volume 30, 2008Spanish Relativity Meeting - Encuentros Relativistas Españoles , ERE2007: Relativistic Astrophysics and Cosmology
|Page(s)||241 - 244|
|Published online||30 September 2008|
A. Oscoz, E. Mediavilla and M. Serra-Ricart (eds)
EAS Publications Series, 30 (2008) 241-244
Shear-free perfect fluids with divergence free magnetic Weyl curvature
Department of Mathematical Analysis, University of Ghent, Galglaan 2, Ghent, Belgium
We discuss shear-free perfect fluids which obey a barotropic equation of state and for which the magnetic part of the Weyl tensor with respect to the fluid congruence is divergence-free. We show that for a large class of equations of state these fluids are either non-expanding or non-rotating and we present a classification of the resulting non-expanding solutions.
© EAS, EDP Sciences, 2008
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