| Implications of Slowing Expansion Rate |
|
|
|
|
|
|
|
|
|
|
|
| | Our calculation of age T=1/Ho = 13.6
billion years assumed constant rate |
|||||||||
| | Gravity
should slow the expansion rate over time |
|||||||||
| | If
density is high enough, expansion should turn around |
|||||||||
| | If
expansion was faster in past, it took less time to get to present size |
|||||||||
| | For Flat universe
T = 2/3 * (1/Ho) = 9.3 billion years |
|||||||||
| | contradiction with other ages if T is too small |
|||||||||