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Colloquium by Gary Ferland (Univ. Kentucky)

The Orion Nebula: Implications for the Obscuring Torus in AGN

Abstract:  When it became clear that an irradiated molecular cloud, the obscuring torus, was responsible for many of the observed properties of AGN, I decided to understand what happens when ionizing radiation strikes molecular gas. The nearest place where we can study this in detail is the Orion Complex.  Ionizing radiation drives outflows and produces a rich emission line spectrum. I will discuss some surprising results which almost certainly also apply to AGN.

Time: Jan. 22, 2015, 2:30 pm

Venue: A601, NAOC