Abstract
N11 is a large complex in the LMC with many regions of star formation at different evolution stages. It is characterized by a huge cavity ( 80×60pc) with a 5 Myr central cluster. It is surrounded by several ionized clouds where young where the youngest O star population is developing (Walborn & Parker 1992, ApJ, 399, 87; Barbá et al. 2003, AJ, 125, 1940). Current star formation is taking place in N11A and N11B. New millimeter data (CO and continuum) show that dust is associated ``with the young stellar population, while the central cavity is relatively clean''. In this work we present a morphological study of the gas in this region obtained with observation of the IR emission gas lines Br γ and Paschen β. These images are compared to H α and molecular gas images of N11. The main goal of this study will consist in a study of the extinction in this region using multiwavelength imaging of the gas and dust.