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Astrophysics Colloquium: Sui Ann Mao, University of Wisconsin-Madison: "Probing Galactic and Extragalactic magnetic fields"

Event Type
Seminar/Symposium
Sponsor
Astronomy Department
Location
134 Astronomy
Date
Apr 2, 2013   4:00 pm  
Speaker
Sui Ann Mao
Originating Calendar
Astronomy Colloquium Speaker Calendar

The origin and evolution of large-scale coherent magnetic fields in galaxies remains to be an unsolved fundamental question in astrophysics. Observations of the structure and strength of galactic-scale magnetic fields provide us with clues on the field generation mechanism. In this talk, I will summarize of our current understandings of magnetism in galaxies. I will focus on studies that uses Faraday rotation measures of polarized extragalactic sources to reveal magnetic fields in the Milky Way and the Magellanic Clouds. In addition, I will discuss our on-going effort to measure galactic-scale magnetic fields at cosmological distances using gravitational lensing systems.

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