Can Galaxies Have Two Nuclei Without Merging?

[chris2112]

I ask because I think I see two nuclei, can galaxies develop two nuclei without merging?

 

[zhermes]

There are numerous galaxies in that image---which itself is very small. Can't tell.

 

[jim mcnamara]

Mergers are the way in which galaxies grow in size.

This website (part of a university class) asserts that the only way to get multiple galactic nuclei is from a merger. I assume the text for class also makes this statement.


http://ircamera.as.arizona.edu/NatSci102/NatSci102/lectures/starbursts.htm