NASA's Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for NASA's Science Mission Directorate in Washington. From what I have read and studied it seems that galaxies generally keep their shape and change only when merging or have already done so.
The main panel of the graphic shows one frame of a simulation produced on a supercomputer.
The distorted galaxy shown here results from a collision between two galaxies followed by them merging.
The ATCA data, not shown here, also involved the non-detection of a growing black hole.
These data suggest that SPT0346-52 is forming at a rate of about 4,500 times the mass of the Sun every year, one of the highest rates seen in a galaxy.
This is in contrast to a galaxy like the Milky Way that only forms about one solar mass of new stars per year.
A paper describing these results, with first author Jingzhe Ma (University of Florida), has been accepted for publication in The Astrophysical Journal and is available online.
This means that astronomers are observing it at a critical stage in the evolution of galaxies, about a billion years after the Big Bang.
Astronomers were intrigued by SPT0346-52 when data from the Atacama Large Millimeter/submillimeter Array (ALMA) revealed extremely bright infrared emission from this galaxy.
Almost unreal to come to terms with in one's head...
It's 2016 right, Not 3016 Posted by Ben on Friday, 12.9.16 @ pm What are the two green ovals, slightly to the left and above the lensed images of SPT 0346-52, and the round bright magenta spot in the upper left corner, are these galaxies unrelated to the SPT 0346-52?
This suggested that the galaxy is undergoing a tremendous explosion of star birth.