Discovering Hoag's Object: A Fascinating Cosmic Smoke Ring in Space

[tdunc]

Hoag's Object ?

http://www.newscientist.com/channel/space/mg18624945.400

"The cosmic smoke ring is a bizarre galaxy called Hoag's Object (www.arxiv.org/ps/hep-th/0503167) first seen in 1950. Like a giant wheel without spokes, it consists of a bright ring of hot blue stars surrounding a nucleus of yellow stars."

 

[meteor]

If it is a soliton is really a very big soliton!

I suppose that this new hypothesis of soliton galaxy will have to compete with other 3 theories about the formation of this bizarre galaxy

http://www.daviddarling.info/encyclopedia/H/Hoags_Object.html
1)Hoag's Object is a disk galaxy and the ring was formed from the end of a central bar that has since dissolved
2)the inner core is an E0 elliptical galaxy, not a disk, and that the ring resulted from an accretion event 2 to 3 billion years ago
3)Hoag's Object be considered the prototype of a class called Hoag-type galaxies, which are neither obviously barred nor obviously inclined disks

BTW, it always has amazed me that in the background of the image there's another Hoag-like galaxy. I wonder if there's some link between them, I don't think that galaxies of this type are very common...