Note on aligned Petrov type D purely magnetic perfect fluids
Lode Wylleman, Norbert Van den Bergh
Abstract
We recently showed (Class. Quantum Grav.\ 23, 3353; gr-qc/0602091) that aligned Petrov type D purely magnetic perfect fluids are necessarily locally rotationally symmetric (LRS) and hence are all explicitly known. We provide here a more transparent proof.
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