Parallel electric fields: variations in space and time on auroral field lines
2008 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 74, no 1, 53-64 p.Article in journal (Refereed) Published
We present results from a particle–fluid simulation of auroral electrons and discuss the distribution of parallel electric fields along auroral field lines and the processes occurring during the build up of these electric fields. Neglecting field-aligned ion dynamics, the main potential drop has a width of about 5000, km and is centered at an altitude of roughly 5000, km. We find that the gradient in the potential becomes steeper and the build up of the potential drop becomes faster if the temperature of the magnetospheric electrons is lower.
Place, publisher, year, edition, pages
Cambridge University Press, 2008. Vol. 74, no 1, 53-64 p.
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:umu:diva-2309DOI: 10.1017/S0022377807006538OAI: oai:DiVA.org:umu-2309DiVA: diva2:140251