Bemporad, A., "Spectroscopic Detection of Turbulence in Post-CME Current
Sheets," ApJ 689, 572 (2008).
Click on the image above for a larger version.
The five examples of hot (Fe XVIII) thin structures observed by UVCS to date, in the wakes of CME eruptions, immediately suggests the standard cartoon. However there is nothing about an MHD theory suggesting that any such thing should be detectable. A current sheet, in MHD, is a singularity with vanishingly small emission measure. If MHD theory is not correct, then maybe it's possible to have a "Mesoscale Current Sheet," the subject of this paper and this cartoon. The paper also has a "bubbles" cartoon, where little bubbles represent "turbulence." This is a trendy way now to draw cartoons - see the red bubbles in the Wei Liu's cartoon for example.
March 6, 2009
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