Abstract
if the expanding and contracting regions coexist in the universe, the speed of cosmic volume expansion can be accelerated. We construct simple inhomogeneous dust-filled universe models of which the speed of cosmic volume expansion is accelerated for finite periods. We find that the the acceleration of the cosmic volume expansion is realized when the size of the contracting region is comparable to the horizon radius of the Einstein-de Sitter universe. This result implies that general relativistic non-linear effects of inhomogeneities are very important for the realization of the acceleration of the cosmic volume expansion.
| Original language | English |
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| Pages | 5-8 |
| Number of pages | 4 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 16th Workshop on General Relativity and Gravitation in Japan, JGRG 2006 - Niigata, Japan Duration: Nov 27 2006 → Dec 1 2006 |
Conference
| Conference | 16th Workshop on General Relativity and Gravitation in Japan, JGRG 2006 |
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| Country/Territory | Japan |
| City | Niigata |
| Period | 11/27/06 → 12/1/06 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics