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  Dynamics of extended bodies in general relativity center-of-mass description and quasirigidity

Ehlers, J., & Rudolph, E. (1977). Dynamics of extended bodies in general relativity center-of-mass description and quasirigidity. General Relativity and Gravitation, 8(3), 197-217. doi:10.1007/BF00763547.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-5EBF-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-5EC0-0
Genre: Journal Article

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335128.pdf (Publisher version), 2MB
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 Creators:
Ehlers, Jürgen1, Author
Rudolph, Ekkart, Author
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1Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24012              

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 Abstract: Dixon's approach to describe the dynamics of extended bodies in metric theories of gravity is elaborated. The exact, general relation between the center-of-mass 4-velocity and the 4-momentum is derived. Quasirigid bodies are defined, and their equations of motion are shown to be determinate for a given metric. Multipole approximations are considered, and the physical meaning of quasirigidity is investigated by establishing an approximate connection with continuum mechanics.

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 Dates: 1977-03
 Publication Status: Issued
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 Identifiers: eDoc: 335128
DOI: 10.1007/BF00763547
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Title: General Relativity and Gravitation
  Alternative Title : Gen.Rel.Grav.
Source Genre: Journal
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Pages: - Volume / Issue: 8 (3) Sequence Number: - Start / End Page: 197 - 217 Identifier: ISSN: 1572-9532