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Multipole moments of stationary space-times

Hansen, R. O.·1974·Journal of Mathematical Physics

Abstract

Multipole moments are defined for stationary, asymptotically flat, source-free solutions of Einstein's equation. There arise two sets of multipole moments, the mass moments and the angular momentum moments. These quantities emerge as tensors at a point A ``at spatial infinity.'' They may be expressed as certain combinations of the derivatives at A of the norm and twist of the timelike Killing vector. In the Newtonian limit, the moments reduce to the usual multipole moments of the Newtonian potential. Some properties of these moments are derived, and, as an example, the multipole moments of the Kerr solution are discussed.

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Metadata

Authors
Hansen, R. O.
Venue
Journal of Mathematical Physics
Published
1974-01-01
Volume
15
Issue
1
Pages
46-52
ISSN
  • 0022-2488 (ISSN-L)
  • 1089-7658
OpenAlex
W1980733923
Cited by
596
References
1
FWCI
2.45
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Multipole moments of stationary space-times. https://app.cochat.ai/papers/10.1063/1.1666501
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Hansen, R. O. (1974). Multipole moments of stationary space-times. Journal of Mathematical Physics. https://doi.org/10.1063/1.1666501

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