Talk:Andromeda-Milky Way collision
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This article was nominated for deletion on 12/2/2007. The result of the discussion was keep. |
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[edit] Comment on deletion proposal
Where is the information on this speculative theory going to be put? On the Andromeda galaxy page? In general I don't like information to be lost unless it's provably fringe science, but if this theory is moved to the Andromeda Galaxy, and maybe shortened, then everything will be fine with me. Rursus declamavi; 22:40, 13 February 2007 (UTC)
This sort of thing would fit into a discussion of the dynamics of the Local Group, though Local Group has nothing mentioning dynamics in it presently. Sagittarius_Dwarf_Elliptical_Galaxy necessarily talks about galactic collisions involving the Milky Way, and there is some mention of the process in galaxy formation. My preference would be to have this get included in an article about dynamics of the Local Group; it's probably too large to fit within the Local Group article itself. BSVulturis 16:03, 15 February 2007 (UTC)
- Hmm. The article was to be kept anyway, which is a good thing. Otherwise, where would the information have been put? In Andromeda (too big already), in Milky Way (too big already), in Local Group maybe. But now it gets an article for future improvements. I'll take a look for missing (?) links from the mentioned places, to assure the article gets its readers. Rursus declamavi; 18:20, 18 February 2007 (UTC)
[edit] some notes
The opening sentence attributes this theory to the toronto and harvard astronomers, however I have not seen anywhere where they claim that they originated the theory. The work takes it for granted that a collision will occur and then they simulate the outcome. The earliest reference to the radial velocity dates to Slipher in 1912 [1] and I suspect that other astronomers have proposed this theory before.
This article seems to imply that the work of Dubinski is a definite prediction of what will happen, however he clearly states that it is speculation.
"The Milky Way and the Andromeda galaxy will likely fall together and merge within a few billion years. In this speculative simulation, the two galaxies..." and "I have set up a model system of colliding galaxies that reflects the current state of our the Milky Way and Andromeda system. There are still some uncertainties about the exact trajectories and masses of the two galaxies but I have set up a plausible case where they fall together and collide..." [2]
--mikeu 15:06, 17 February 2007 (UTC)
[edit] Are there any peer reviewed references to this subject?
I am a scientist that would like to learn more about this proposed theory. Does anyone know if there any peer-reviewed references to this topic? Lunokhod 00:11, 19 February 2007 (UTC)
- I have been looking, and have not been able to find one.--mikeu 02:28, 19 February 2007 (UTC)
[edit] Future event?
While it's pretty sure that the collision, if it occurs, will occur in the future, 3 billion years is a long time. The depth of our knowledge concerning the Andromeda-Milky Way collision is not likely to increase very much within the lifetime of the human race, let alone Wikipedia. Therefore, I removed the template saying it was a future event. If I erred, please tell me. DrExtreme 20:36, 3 March 2007 (UTC)
- The event may not happen at all. Hornberry 15:08, 5 March 2007 (UTC)
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- It is kinda funny to have a future tag, though, so I'd put it back just for whimsy... Wl219 06:13, 26 March 2007 (UTC)
