Physics & Astronomy Colloquium

3:30 PM, Friday, September 29, 2006

Room 155, Chem-Phys Building

Dr. Nancy Levenson

Department of Physics and Astronomy
University of Kentucky

``Revealing the Energetic Sources Buried in the Nuclei of Galaxies''

The centers of many galaxies contain luminous sources. Accreting supermassive black holes or intense concentrations of star formation are their likely origin, and these phenomena may be related to each other. In many cases, the energetic sources are hidden from direct view, but identifying them and quantifying their properties remains important to understand the evolution of galaxies generally. I will discuss techniques used to uncover the buried sources and to survey their environments, emphasizing observations at X-ray and infrared wavelengths.

Refreshments will be served in CP 179 at 3:15 PM