Abstract
We present a covariant decomposition of Einstein’s field equations which is particularly suitable for perturbations of spherically symmetric—and general locally rotationally symmetric—spacetimes. Based upon the utility of the covariant approach to perturbation theory in cosmology, the semi-tetrad, approach presented here should be useful for analyzing perturbations of a variety of systems in a covariant and gauge-invariant manner. Such applications range from stellar objects to cosmological models such as the spherically symmetric Lemaître-Tolman-Bondi solutions or the class of locally rotationally symmetric Bianchi models.
- Received 10 August 2007
DOI:https://doi.org/10.1103/PhysRevD.76.104034
©2007 American Physical Society