Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2003-04-22
Class.Quant.Grav. 21 (2004) 2101-2114
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages
Scientific paper
10.1088/0264-9381/21/8/013
We construct approximate solutions that will describe the last stage of cylindrically symmetric gravitational collapse of dust fluid. Just before the spacetime singularity formation, the speed of the dust fluid might be almost equal to the speed of light by gravitational acceleration. Therefore the analytic solution describing the dynamics of cylindrical null dust might be the crudest approximate solution of the last stage of the gravitational collapse. In this paper, we regard this null dust solution as a background and perform `high-speed approximation' to know the gravitational collapse of ordinary timelike dust fluid; the `deviation of the timelike 4-velocity vector field from null' is treated as a perturbation. In contrast with the null dust approximation, our approximation scheme can describe the generation of gravitational waves in the course of the cylindrically symmetric dust collapse.
Morisawa Yoshiyuki
nakao Ken-ichi
No associations
LandOfFree
High Speed Dynamics of Collapsing Cylindrical Dust Fluid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High Speed Dynamics of Collapsing Cylindrical Dust Fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Speed Dynamics of Collapsing Cylindrical Dust Fluid will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-551062