The galaxy was found serendipitously in a Subaru survey of the galactic disk and looks quite interesting. Here's two images of the system, in g-band (left) and r-band (right).
GMOS spectrograph on the Gemini-North telescope, allowing us to measure the velocities of the various components. It also revealed that there are active galaxies hidden down in the middle.
So, what's going on here? Well, we have some local examples of these Collisional Ring Galaxies. Here's a pretty one as seen by the Hubble Space Telescope
We've also done a preliminary set of computational modeling of the collision which confirms this:
A New Collisional Ring Galaxy at z = 0.111: Auriga's Wheel
Blair C. Conn, Anna Pasquali, Emanuela Pompei, Richard R. Lane, André-Nicolas Chené, Rory Smith, Geraint F. Lewis
(Submitted on 20 Jul 2011)
We report the serendipitous discovery of a collision ring galaxy, identified as 2MASX J06470249+4554022, which we have dubbed 'Auriga's Wheel', found in a SUPRIME-CAM frame as part of a larger Milky Way survey. This peculiar class of galaxies is the result of a near head-on collision between typically, a late type and an early type galaxy. Subsequent GMOS-N long-slit spectroscopy has confirmed both the relative proximity of the components of this interacting pair and shown it to be the most distant spectroscopically confirmed collisional ring galaxy with a redshift of 0.111. Analysis of the spectroscopy reveals that the late type galaxy is a LINER class Active Galactic Nuclei while the early type galaxy is also potentially an AGN candidate, this is very uncommon amongst known collision ring galaxies. Preliminary modeling of the ring finds an expansion velocity of ~200 kms^-1 consistent with our observations, making the collision about 50 Myr old. The ring currently has a radius of about 10 kpc and a bridge of stars and gas is also visible connecting the two galaxies.