  Tidal Dwarf Galaxies (TDG), or self-graviting objects created from the tidal
forces in interacting galaxies, have been found in several merging systems.
This work will focus on identifying TDG candidates among a sample of Luminous
and Ultraluminous Infrared Galaxies (U)LIRGs, where these interactions are
occurring, in order to study their formation and evolution. High angular
resolution imaging from Hubble Space Telescope (HST) in B, I and H band will be
used to detect these sources. Photometric measurements of these regions
compared to Stellar Synthesis Population models will allow us to roughly
estimate the age and the mass. Complementary optical Integral Field
spectroscopy we will be able to explore the physical, kinematic and dynamical
properties in TDGs. We present preliminary photometric results for IRAS
0857+3915, as an example of the study that will be held for the entire sample
of (U)LIRGs.
