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Why is the Sun's corona so hot? Views from SOHO, Yohkoh and solar eclipses
Phillips, Kenneth J. H.
It has been known for over 50 years that the outer atmosphere of the Sun, the so-called corona, has a temperature of 106 K (~0.1 keV) yet the exact reasons for this are still being debated. The magnetic field that pervades the corona is certainly the source of the heating, but the question is whether the field energy is dissipated via n…
Magnetized vortex tubes in the solar wind plasma
Moussas, X.; Polygiannakis, J. M.
We make new applications of our previously proposed method for estimating the strain-rate tensor and vorticity vector in plasmas (concerning the local deformation and self rotation of the plasma fluid elements, respectively) solely from magnetic field time series. Here we use solar wind measurements of Ulysses spacecraft made in the outer heliosph…