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Durham University

Research & business

Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


 

Applied mathematics seminar: Wave heating of the corona and solar wind

Presented by Richard Morton, Northumbria University
20 November 2019 13:00 in TLC129/Zoom Meeting ID: 920 2546 6169 Passcode: 509245

Alfvénic waves have long been considered a leading participant in the transfer of energy around cool, magnetised stars’ atmospheres; potentially responsible for the heating of the Sun’s corona and the acceleration of the solar wind. In the early 2000’s, various self-consistent models of Alfvénic wave turbulence from photosphere to heliosphere were developed that supported the role of wave dissipation. However, it wasn’t until a few years later that Alfvénic waves were unambiguously observed in the Sun’s corona, both in spectroscopic and imaging data. Since then, we have begun to probe the properties of the Alfvénic waves; providing key constraints for the wave turbulence heating models and challenging some of the long-held paradigms that these models rely upon. Here, I will discuss how ground-based observations of the corona in the Infrared are helping to uncover the behaviour of Alfvenic waves and the implications for our understanding of energy transfer via Alfvénic waves.

Contact christopher.prior@durham.ac.uk for more information