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Near infrared adaptive optics observations are crucial to be able tointerpret kinematic and dynamical data and study star formation propertieswithin the often extremely dusty interacting luminous IR galaxies (LIRGs). NIRAO data are also needed to find supernovae in their bright and dusty centralregions and to fully characterize the young stellar clusters found in thesekinds of systems. We have used AO in the K-band to survey a sample of LIRGs at0.1 arcsec (30 to 100 pc) resolution. The data are merged with SALT and AATspectroscopic follow-up and HST and Spitzer archival imaging. The first AOdetected SNe are reported as well as details of the first studied LIRGs. OneLIRG showed an unexpected third component in the interaction, which moreoverturned out to host the most active star formation. Another target showedevidence in the NIR of a very rare case of leading spiral arms, rotating in thesame direction as the arms open.

Star formation properties and dynamics of Luminous Infrared Galaxies with adaptive optics