Talk:Structure formation
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"hot, dense, nearly uniform state approximately 11 billion years ago"? I thought the consensus figure was more like 13 or 14 billion. --arkuat (talk) 19:48, 19 May 2006 (UTC)
[edit] Merge suggestion
Interestingly enough, these two articles developed organically and there is very little overlap. Please, someone help us merge! --ScienceApologist 06:59, 17 June 2006 (UTC)
- I have removed the merge tag. I agree that the two articles are closely related, but I envison large-scale structure of the universe as being a sort of broad, non-technical overview, while this article could be more technical and include more detailed referencing. This is a project I've been lazily putting off for a long time. As you can see, I've made a start, but plenty more can be added. One interesting thing would be to include a hand-waving explanation of why the CMB anisotropy spectrum looks the way it does, à la Wayne Hu. I also intend to add something about how to go from cosmic inflation -> linear structure -> N-body with some mathematical details (although not a complete description). –Joke 01:45, 22 September 2006 (UTC)
[edit] Millenium Simulation
While I agree that the Millenium simulation of Springel and colleagues is very important, being the largest of its kind ever done, it should be placed in the proper context of the previous thirty years of N-body simulations. Rtfisher 13:47, 19 June 2006 (UTC)
[edit] Comments
I've recently been trying to expand the page. I think I've put in a pretty good framework for what should eventually go here, but the following needs to be improved:
- It's too technical in places
- It is completely unreferenced. I intend to address this soon, but I wrote it without bothering too much about references so that I could at least get something sensible up.
- It needs illustrations, here are some ideas:
- The CMB anisotropy spectrum
- An illustration of the Hubble radius compared to the expansion of space during inflation
- The large-scale structure power spectrum (preferably with SDSS or 2dF/GRS data)
- A 2d slice of one of the big N-body simulations showing filaments
I also intend to write something about the mathematical formalism behind this all, but I haven't decided whether to add it to cosmological perturbation theory and N-body simulation or to this page. Comments welcome. –Joke 13:08, 25 September 2006 (UTC)
