Dynamics of extended bodies in general relativity center-of-mass description and quasirigidity |
| |
Authors: | Jürgen Ehlers Ekkart Rudolph |
| |
Affiliation: | 1. Max-Planck-Institut für Physik und Astrophysik, F?hringer Ring 6, 8000, München 40, West Germany
|
| |
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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|