New answers tagged cosmological-constant
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Can a closed universe become open?
In a closed universe the density $\rm \rho$ is higher than the critical density $\rm \rho_c=3 H^2/(8 \pi G)$, in a hyperbolic one it's lower and in a flat one it matches.
If you could somehow change ...
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Cosmological constant and gravitational lensing
Angela asked: "The question is whether it should lead to slowing down of the measured speed of light?"
In the local neighbourhood of an observer the speed of light is c, but farther away it ...
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Why did dark energy play a subdominant role in the radiation and matter dominated era?
According to me this means that the expansion of the universe was all the time slowing down till dark energy came to play so the slowing down of the expansion of the universe was getting
diminished. ...
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Does inflation imply the existence of dark energy?
There is both a nomenclature problem and a circular reasoning problem in your question.
The nomenclature issue is that "inflation" is not shown on your diagram. It is inferred to take place ...
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Does inflation imply the existence of dark energy?
This question seems to be asking that if we have the requirement that the universe is expanding as fast as we observe it to be today (yellow circle), and we have the requirement that the universe went ...
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