University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Wednesday, February 4th 2015
3:35 pm:
Speaker: Hugh Hudson, UC Berkeley
Subject: Solar Flares, X-ray Astronomy, and Black Swans
Refreshments served in Room 216 Physics after colloquium

The atmosphere of the Sun (and that of many another star) hosts catastrophic disruptions - flares - that involve a very wide range of phenomena. Much of the development of our basic understanding began with John Winckler (Minnesota) and his students, and their students. The physics of space plasmas plays a major role in modern analysis. I will discuss new wrinkles in the physics of flares, emphasizing the X-ray observations, and assess some recent new information regarding extreme events - the "black swans" - detected now in tree-ring fossil records and Kepler astronomical photometry.

Faculty Host: John Wygant

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