The internal kinematic of star-forming regions in interacting galaxies

FIRPO, V.; MUTHUKRISHNA, D.; CAMPUZANO CASTRO, F.; BOSCH, G.; HÄGELE, G. F.; TORRES-FLORES, S.; CARDACI, M. V.

Sao Jose dos Campos

Workshop; II workshop on Chemical Abundances in Gaseous Nebulae: Open problems in Nebular Astrophysics; 2019

Universidade do Vale do Paraíba.

Star formation processes can be found in colliding galaxies, where the gas compression can trigger the formation of giant star-forming regions. We present the results from a detailed kinematic analysis in a sample of HII regions located in three strongly interacting galaxies. The velocity dispersion and the luminosity of the multiple-components analyzed in the emission-line profiles suggest that these star-forming objects correspond to giant complexes. In addition, the star formation rates and the ionization state in these regions revealed the presence of ongoing star formation events.