On Friday, March 20, 2015 at 6:07:44 AM UTC-4, Jan Panteltje wrote:
http://physicsworld.com/cws/article/...ky-ways-centre

I have always been of the opinion that stars are in fact spit out by the (rotating) black hole,
and spiral arms are formed that way.
This seems to point to such a process and supports it.

Not really. That article presented evidence of star formation from gas clouds, not whole stars ejected from a black hole. Also, the orbits of stars around Sgr A* have been measured and they are pretty normal Keplerian ellipses, not stars on escape trajectories.