May 13, 2009 - Active Galactic Nucleii: A matter of perspective - Dr. Emily Down

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Quasar 3C273 observed with the MERLIN telescopeMay 13, 2009 - Active Galactic Nucleii: A matter of perspective - Dr. Emily Down, Visiting Astronomer, NRC HIA

Active Galactic Nuclei are powerful, but rare, phenomena which occur in some galaxies. A small region at the heart of the galaxy releases a vast quantity of energy which outshines all the stars in the galaxy put together. I will talk about what an active galactic nucleus is, how it appears from the Earth, how we can measure which direction it points in, and how this information is used to study their formation and structure. I will briefly discuss how the birth of these strange and marvellous objects may be linked to the formation of normal galaxies.

Presentation (4.3Mb pdf)

Bio: I completed a Masters degree in Physics at Oxford University, UK, in 2002, and returned after a year as a library assistant to do a PhD in Astrophysics, which I finished in 2008. I currently hold a one-year Government of Canada postdoctoral research fellowship at the Herzberg Institute of Astrophysics in Victoria. My research is in the field of galaxy evolution, focussing on investigating the structure, formation and evolution of quasars using Bayesian statistical modelling techniques.

Emily Down's Astrophysics Webpage

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