Stationary spacetimes and the Simon tensor

Details Stationary spacetimes and the Simon tensor Stationary spacetimes and the Simon tensor

2004-11-10

arxiv.org/abs/gr-qc/0411051v1

Nuovo Cim. B119 (2004) 863-873

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

To appear on the Proceedings of the International Conference in Honor of Y. Choquet-Bruhat, "Analysis, Manifolds, and Geometri

Scientific paper

10.1393/ncb/i2004-10183-9

For stationary vacuum spacetimes the Bianchi identities of the second kind equate the Simon tensor to the Simon-Mars tensor, the latter having a clear geometrical interpretation. The equivalence of these two tensors is broken in the nonvacuum case by additional source energy-momentum terms, but absorbing these source terms into a redefinition of the Simon tensor restores the equality. Explicit examples are discussed for electrovacuum and rigidly rotating matter fields.

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