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Alfvén wave driven heating of the Solar chromosphere

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If you have a question about this talk, please contact Robert Teed.

The solar chromosphere requires a local heat input of around 107 erg/s/cm2. It is also permeated by jets of cool dense meter which rise into the corona – spicules. This talk will explain what the problem is and present a model which aims to answer both of these problems. The model is based a Alfvén wave driving of an expanding flux tube which gives the correct heating rate and rise speed for spicule-like structures. The talk will end with a clear and detailed discussion of the limitations of the model and the prospects for these to be be overcome, giving a definitive answer, in the next few years.

This talk is part of the DAMTP Astrophysics Seminars series.

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