Perfect fluid perturbations of cosmological spacetimes in Stewart's variables
- 1 January 1994
- journal article
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 11 (1), 139-155
- https://doi.org/10.1088/0264-9381/11/1/016
Abstract
A formalism suggested by Stewart for the study of perturbations of cosmological spacetimes is applied to the case of isentropic perfect fluid perturbations. Autonomous systems of differential equations for distinct types of perturbations, including gravitational waves, vorticity perturbations, and waves of density perturbations, arise in a natural way.Keywords
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