Dynamical evolution of gravitational waves in the asymptotically de Sitter space-time
Nov, 1993
37 pages
Published in:
- Phys.Rev.D 50 (1994) 708-719
Report number:
- KUNS-1228,
- OU-TAP-2,
- YITP-K-1040,
- WU-AP-35-93
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Abstract: (APS)
We perform numerical computations to investigate the dynamical evolution of axisymmetric gravitational waves in asymptotically de Sitter spacetime. The final fates of such spacetimes are classified into two types: (1) de Sitter spacetime with small perturbations, and (2) Schwarzschild–de Sitter–like spacetime with both black-hole and cosmological apparent horizons. We also find that if the mass of gravitational waves is larger than the critical value, Mcrit≡(3 √Λ )−1, then the black hole is not formed even in the case that there exist highly nonlinear localized gravitational waves. In such a case, the Universe is initially dominated by gravitational waves rather than a cosmological constant Λ and eventually approaches a de Sitter universe. These results are consistent with the previous analysis by use of initial data.- gravitational radiation
- space-time: de Sitter
- black hole
- astrophysics: horizon
- symmetry: axial
- numerical calculations
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