Abstract
With the very high sensitivity and resolution provided by instruments such as the European Very Long Baseline Interferometry Network (EVN), it is possible to study the nuclear and circumnuclear regions in Luminous (L_FIR > 10^11 L_⊙) and Ultraluminous (L_FIR > 10^12 L_⊙) Infrared Galaxies, where the high Star Formation Rates (SFR) guarantee the occurrence of bright Radio Supernovae (RSNe). In this work we present some recent results from our EVN campaign of observations towards the interacting system Arp 299, and one of the brightest and farthest ULIRGs in the local Universe, IRAS 23365+3604.
