Abstract
We present some results of an observational programme devoted to obtain deep imagery and high-resolution spectroscopy for a sample of dwarf Wolf-Rayet galaxies. Our main result is that interaction with fainter optical companions could be the origin of the strong star formation episodes observed in, at least, an important fraction of the objects. In all the cases presented, the companions and the signatures of interaction or merging can only be detected when deep and detailed observations are taken. We predict that the fraction of dwarf WR galaxies (or even H II galaxies in general) with interacting signatures will increase when detailed observations for more objects are available.
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