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We present near-infrared (H- and K-band) integral-field observations of thecircumnuclear star formation rings in five nearby spiral galaxies. The data,obtained at the Very Large Telescope with the SINFONI spectrograph, are used toconstruct maps of various emission lines that reveal the individual starforming regions ("hot spots") delineating the rings. We derive themorphological parameters of the rings, and construct velocity fields of thestars and the emission line gas. We propose a qualitative, but robust,diagnostic for relative hot spot ages based on the intensity ratios of theemission lines Brackett gamma, HeI, and [FeII]. Application of this diagnosticto the data presented here provides tentative support for a scenario in whichstar formation in the rings is triggered predominantly at two well-definedregions close to, and downstream from, the intersection of dust lanes along thebar with the inner Lindblad resonance.

A SINFONI view of Galaxy Centers: Morphology and Kinematics of five Nuclear Star Formation Rings