Solar coronal electron heating by short-wavelength dispersive shear Alfvén waves
MetadataShow full item record
The electron heating of the solar coronal plasma has remained one of the most important problems in solar physics. An explanation of the electron heating rests on the identification of the energy source and appropriate physical mechanisms via which the energy can be channelled to the electrons. Our objective here is to present an estimate for the electron heating rate in the presence of finite amplitude short-wavelength (in comparison with the ion gyroradius) dispersive shear Alfven (SWDSA) waves that propagate obliquely to the ambient magnetic field direction in the solar corona. Specifically, it is demonstrated that SWDSA waves can significantly contribute to the solar coronal electron heating via collisionless heating involving SWDSA wave-electron interactions.
Bingham , R , Shukla , P K , Eliasson , B , Cairns , A & Cairns , R A 2015 , ' Solar coronal electron heating by short-wavelength dispersive shear Alfvén waves ' Physica Scripta , vol 90 , no. 10 , 108004 , pp. 1-4 . DOI: 10.1088/0031-8949/90/10/108004
This is an Open Access article. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
DescriptionThis work was partially supported by the STFC through the Centre for Fundamental Physics (CfFP) at Rutherford Appleton Laboratory, Chilton, Didcot, UK. BE acknowledges support by the Engineering and Physical Sciences Research Council (EPSRC), UK, Grant no EP/M009386/1.
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.