Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2000-12-19
Class.Quant.Grav. 18 (2001) 353-372
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
24 pages, LaTeX2e, IOP style. To appear in Classical and Quantum Gravity
Scientific paper
10.1088/0264-9381/18/3/301
In vacuum space-times the exterior derivative of a Killing vector field is a 2-form (named here as the Papapetrou field) that satisfies Maxwell's equations without electromagnetic sources. In this paper, using the algebraic structure of the Papapetrou field, we will set up a new formalism for the study of vacuum space-times with an isometry, which is suitable to investigate the connections between the isometry and the Petrov type of the space-time. This approach has some advantages, among them, it leads to a new classification of these space-times and the integrability conditions provide expressions that determine completely the Weyl curvature. These facts make the formalism useful for application to any problem or situation with an isometry and requiring the knowledge of the curvature.
Fayos Francesc
Sopuerta Carlos F.
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