Dr. Juergen Ott (NRAO)

University of Florida Astronomy Colloquium - March 11th, 2015

Molecular Gas in Nearby Galaxy Cores: Star Formation, Feedback & Outflows

Most of the molecular material in galaxies is located in their central ~500pc. This region is thus the prime reservoir for strong star formation although the environment is also dominated by factors that potentially suppress the collapse of gas to stars. The gas can be influenced by strong shocks from cloud-cloud interactions, by UV radiation and mechanical feedback from massive stars, and an active nucleus may release energy well into the relativistic velocity range. I will present data from the Center of our Milky Way, nearby starburst and active galaxies where we study the different factors and how they influence the physics, chemistry, and fate of the gas.