Chemodynamics in Blue Compact Dwarf galaxies: II Zw 33 and Mrk 600

HÄGELE, G F; CAMPUZANO CASTRO, FEDERICO; FIRPO, V; BOSCH, G

Conferencia; Reunion Anual AAA; 2020

We performed a kinematic study of five star-formation regions belonging to two Blue Compact Dwarf galaxies: IIZw33 and Mrk600, using high resolution spectroscopic data obtained with the MIKE spectrograph mounted at the Clay telescope. The spectra present very complex emission-line profiles showing multiple Gaussian components. In order to analyze the kinematics of these star-forming regions we developed a Python code, based on the Non-Linear Least-Square Minimization and Curve-Fitting (LMFit) package, and used a statistical method, to analyze the goodness of the inclusion of a new Gaussian in the model. We estimated the physical conditions (electron densities and temperatures), ionic and total chemical abundances of several atomic species and the ionization degree on each star-forming region.