  We present the results of H- and K-band VLT/SINFONI integral field
spectroscopy of the ULIRG IRAS 19254-7245 (The Super-antennae), an interacting
double galaxy system containing an embedded AGN. Deep K-band spectroscopy
reveals PaAlpha arising in a warped disc with position angle of 330 degree and
an inclination i=40-55 degree. The kinemetric parameters derived for H2 are
similar to PaAlpha. Two high-ionization emission lines, [SiVI] and [AlIX], are
detected and we identify as [NiII] the line observed at 1.94 micron. Diluting
non-stellar continuum, which was previously detected, has decayed, and the
H-band continuum emission is consistent with pure stellar emission. Based on H2
emission line ratios it is likely that at the central 1-kpc region H2 is
excited by UV fluorescence in dense clouds while shock excitation is dominant
further out. This scenario is supported by very low PaAlpha to H2 line ratio
detected outside the nuclear region and non-thermal ortho/para ratios (~2.0 -
2.5) close to the nucleus.
