Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-05-27
Gen.Rel.Grav. 27 (1995) 511-527
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages Plain TeX, 9 pages of figures available on request by FAX or mail
Scientific paper
10.1007/BF02105076
We propose to study the behavior of complicated numerical solutions to Einstein's equations for generic cosmologies by following the geodesic motion of a swarm of test particles. As an example, we consider a cylinder of test particles initially at rest in the plane symmetric Gowdy universe on $T^3 \times R$. For a circle of test particles in the symmetry plane, the geodesic equations predict evolution of the circle into distortions and rotations of an ellipse as well as motion perpendicular to the plane. The evolutionary sequence of ellipses depends on the initial position of the circle of particles. We display snapshots of the evolution of the cylinder.
Berger Beverly K.
Garfinkle David
Swamy V.
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