Milky Way Double Halo

[NEOWatcher]

I couldn't find any references to the halos except in ATM. So...
Scientists detect our galaxy’s double halo (http://www.msnbc.msn.com/id/22219599/)
I'm not sure how noteworthy this is...but it's interesting to me, and I'm sure there are those here that can comment on it.

I did find the illustration useful :sick: not.

The red plus symbols represent stars and the brown burst-like symbols are star clusters.

I think there may be a few more than that...

[loglo]

Discussed in this thread (http://www.bautforum.com/questions-answers/68033-astronomers-find-new-halo-milky-way.html). There is a link to the preprint. Its basically more evidence for the hierarchical cluster theory of galaxy formation.