[2] The optical emission of the southwest nucleus corresponds to a type II Seyfert galaxy while the north one of a LINER.

[6] The startburst takes place in a rotating disk with a radius 120 pc and a total mass of 2.6×109 M☉ which surrounds the north nucleus.

A kiloparsec scale outflow is visible towards the north in CO imaging, with the flow rate of 600 M☉ per year.

[3] Also south of the galaxy lies a giant X-ray nebula, measuring 40 by 40 kiloparsecs in size, that isn't closely related with the tidal tail.

[11] A warm gas ionised halo extends about 45 kpc from the nucleus, and is probably tidal debris from the merger.