Giant star-forming regions in interacting galaxies

V. FIRPO; G.F. HÄGELE; G. BOSCH; S. TORRES-FLORES; F. CAMPUZANO-CASTRO

Campos do Jordao

Workshop; Chemical Abundances in Gaseous Nebulae; 2016

UNIVAP

The most violent processes of star formation can be found in interacting galaxies, where gas compression can trigger the formation of gi- ant star-forming regions. Using high-resolution spectroscopic information from MIKE/Magellan and multi-slit data from GMOS/Gemini-South, we propose to improve our knowledge in the chemodynamics of extragalac- tic star-forming regions. The current analysis is based on a sample of star-forming regions located in strongly interacting galaxies. A detailed study of the ionized gaseous component in these regions reveals a complex internal kinematics, which can be identified by asymmetric line profiles and multiple components. The kinematic information suggests that these star-forming objects correspond to giant complexes. Future estimations of physical properties such as the electron densities, temperatures and chemical abundances of the different kinematical components will allow us to determine the chemodynamical state of these star-forming objects. This information will be extremely useful to understand the evolution of these systems in interacting galaxies.