Kinematics of the Circumnuclear Region of M 100

Abstract

Circumnuclear regions of barred galaxies can host ring-like regions of enhanced star formation, thought to be related to the position of one or more Inner Lindblad resonance(s). Here we present kinematic observations and modelling of one such region, namely in the barred galaxy M100. The observations and modelling agree qualitatively and quantitatively, and support the idea that the circumnuclear structure forms an integral part of the dynamical structure of this galaxy.