edd
Master Poster
- Joined
- Nov 28, 2007
- Messages
- 2,120
I don't particularly enjoy being herded around between threads but since you asked over there to have this over here:
Now, if the evidence for a non-expanding model was in any way competitive one might take the benefit of the simplicity of the fit to the data that Lerner shows as strong evidence, but as it is, balanced against all the other evidence, it does really look like coincidence* that the evolution of galaxy surface brightnesses gives those results.
In other words, it is an interesting observation for improving understanding galaxy formation and evolution but it does not deeply shake the foundations of cosmology.
*which one may show has physics behind it to make it less of a coincidence
The paper itself points out the importance of galaxy evolution. This is quite messy astrophysics - in the sense that its difficult to build good models as so much is going on, basically. Its really not clear to me that his arguments against galaxy evolution being able to explain the observations are sufficiently strong - he in fact describes it as a 'tentative conclusion' himself.To quote another one Lerner, Eric J., Evidence for a Non-Expanding Universe: Surface Brightness Data From HUDF March 21, 2006 -- Volume 822, pp. 60-74, 1st Crisis in Cosmology conference. And there are a good few more in rather more respected journals (than his own)..... but they are not relevant to this thread and belong in the plasma cosmology thread. So any replies to this a little off topic material in there, please. Dont want this thread to be another hijacked off at a tangent.
Now, if the evidence for a non-expanding model was in any way competitive one might take the benefit of the simplicity of the fit to the data that Lerner shows as strong evidence, but as it is, balanced against all the other evidence, it does really look like coincidence* that the evolution of galaxy surface brightnesses gives those results.
In other words, it is an interesting observation for improving understanding galaxy formation and evolution but it does not deeply shake the foundations of cosmology.
*which one may show has physics behind it to make it less of a coincidence