Shear-free perfect fluids with solenoidal magnetic curvature and a γ-law equation of state

2007/04/25 by N Van den Bergh, Norbert Van den Bergh, J. Carminati +3 · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements #gr-qc

paper · pdf · doi:10.1088/0264-9381/24/14/012

published as Class.Quant.Grav.24:3735-3744,2007 · 11 pages

arxiv created 2007/04/25 · openalex publication_date 2007/07/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

We show that shear-free perfect fluids obeying an equation of state p = (γ − 1)μ are non-rotating or non-expanding under the assumption that the spatial divergence of the magnetic part of the Weyl tensor is zero.

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• Two fluid shear-free composites
• Shear-free perfect fluids with a solenoidal electric curvature

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