A dynamical analysis of the HII galaxy II Zwicky 33 and its low surface brightness companion

We present radio and optical observations and an analysis of the dynamics of the H II galaxy II Zw 33 and its Low Surface Brightness companion. Both galaxies were observed in the radio with the VLA in its B- and C-array configurations and in the optical (B-band) with the Kitt Peak 4-m telescope. II Zw 33 is an example of an H II galaxy, i.e., a dwarf galaxy in which violent star formation is taking place.