Hasanuddin said:
I don't know where you're coming from. You gave me that wonderful Ripalda paper; then you seemed to slash away about what is a real model, the scientific method, etc.
When I gave you those links you maybe assumed I was advocating their conclusions and supporting your model. When I pointed out where your model was lacking you maybe assumed I was disagreeing with your conclusions and opposing your model.
I think if you avoided making assumptions about my intentions you'd have no trouble seeing where I'm coming from. It was the first thing I said:
modest said:
You see, I'm not trying to debate your idea. I gave you those links because they examine (and support) the same thing you're proposing. I pointed out the non-falsifiability of your model because I see it as a weakness and I'm giving honest feedback.
Hasanuddin said:
Can you explain the cause of antimatter near the galactic core? Where did it come from?
The two explanations I've heard is that it comes from x-ray binaries or decaying dark matter. I'm personally excited at the prospect that it could be the result of some exotic particle like a neutralino because this could suggest the validity of supersymmetric theories and dark matter... and what an extraordinary leap in knowledge that would be. The characteristics of the "cloud" were predicted by a theory of decaying neutralinos in 2004:
so, it seems at least possible.
But, on the other hand, it's more likely that the antimatter comes from x-ray binaries. The cloud is shaped in such a way that it coincides with a heavy population of binaries, so that does seem a bit more likely.
It is, however, an open question, so I'm interested to hear your thoughts on the origin of this antimatter.
Hasanuddin said:
If you're interested in how a Friedmann universe agrees with observation then I certainly can answer any questions you have. A Friedmann model assumes that the universe follows the theory of General Relativity. Space is filled homogeneously with matter and the scale of the universe (the expansion) is solved. This can give us specific answers to questions about our universe.
For example, With paramaters: Ho = 71, OmegaM = 0.270, Omegavac = 0.730, we can ask the question: what would a galaxy that is exactly like the Milky Way look like if the light we are receiving from it took 11.5 billion years to reach us? The answers are as follows (source):
- Redshif we will measure = 3
- Flux we will receive (luminosity) =

- Size of galaxy in the sky = 0.00109 degrees
We can likewise measure the redshift/brightness/size of any galaxy in the sky and see if it matches up with what Friedmann proposed 80 years ago... and so far, yes it does.
This is not to say standard cosmology is the whole, complete, and final story. Surely there will be improvements and even paradigm shifts. There will be new physics and new models. But, you will find (and I can support) that the metric here applied to the model here does indeed accurately describe our universe. It does so by assuming that the universe is filled with matter which is gravitationally attractive (as is described by general relativity).
I really think you would do better developing your idea rather than trying to go after standard cosmology. ;)
~modest

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