Astronomy Colloquium

April 11, 2017
Thursday, April 13, 2017 - 2:30pm to 3:30pm
1080 Physics Research Building
M51 Magnetic Field Map

Radio Polarimetry and Cosmic Magnetism  

Bryan Gaensler - University of Toronto 

A remarkable discovery made by 20th century astronomers was that the Universe is threaded with magnetic fields. Furthermore these magnetic fields typically do not have a random, tangled morphology, but are surprisingly organized and coherent. However, the processes that create and then sustain this large-scale magnetism are not yet understood. I will present innovative new observations of radio polarization and Faraday rotation and will explain how these data sets provide a unique view of magnetic fields in interstellar gas, in the Milky Way, and in distant galaxies. These experiments pave the way to the opening of the full magnetic Universe with the next generation of radio telescopes, culminating in the Square Kilometre Array.

Coffee & Donuts served at 2:00pm in 4054 McPherson Laboratory

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