The observable consequences of dynamos in black hole accretion disks

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• Prof. Christopher Reynolds
• Monday 19 February 2018, 14:00-15:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

If you have a question about this talk, please contact Dr William Béthune.

Black hole accretion is well know to be mediated by MHD turbulence. Many numerical studies of these systems also find evidence for dynamo action, often seen as quasi-periodic buoyant expulsions of toroidal flux from the disk plane. Using a recent set of high-resolution numerical global models, I will show that the dynamo may be imprint itself on the gross aspects of the observed time variability and, indeed, it may be very hard to gain an even qualitative understanding of the observations without understanding the dynamo in more depth.

This talk is part of the DAMTP Astrophysics Seminars series.

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• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge
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