B Accelerating Universe Expansion: Age & Hubble Constant

AI Thread Summary
The discussion centers on the relationship between the accelerating expansion of the universe and the Hubble Constant, emphasizing that the universe's age is fixed despite changes in the rate of expansion. It critiques the assumptions made in the referenced article, stating they do not align with the Lambda-CDM model, particularly regarding the use of a simple power law for energy components. The current balance of matter and the cosmological constant complicates the application of this model. Furthermore, the estimation of the universe's age relies heavily on the cosmological framework. Due to the reliance on an unacceptable reference, the discussion thread has been closed.
Mike holden
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TL;DR Summary
How the age of the Universe depends on the rate of acceleration.
In my article - The accelerating expansion of the Universe at:
[Unacceptable reference delted by the Mentors]
I discuss how the age of the Universe depends on the rate of acceleration, the common factor being the value of the Hubble Constant at the present time. I go on to show how the expansion progresses in the future for each scenario.
 
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Mike holden said:
age of the Universe depends on the rate of acceleration
The age of the universe is what it is. It doesn't get older because the rate changes, although the rate may change as it gets older.
 
The article makes fundamental assumptions that are not in accordance with the Lambda-CDM model. Assuming a simple power law is fine if you only have a single type of energy component in the Universe, but then the exponent will depend on the equation of state parameter of that component. In the current Universe, matter and the cosmological constant are of similar energy density and this means the simple power law is not a good description.

In addition, the estimate for the age of the Universe is based upon the cosmological model.
 
Since the thread start was based on an unacceptable reference, the thread is closed.
 

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