It is an electrically conducting fluid moving in the presence of a magnetic field generating currents in the fluid which alter the magnetic field, reinforcing it and maintaining it against decay. Figure 1 Figure 1 shows a plot of magnetic energy versus position in a periodic cell of the layer. The colors represent magnetic intensity, increasing from black to blue to red. The traces are projected onto the midplane of the layer.
Background colors represent the temperature of the midplane, increasing from blue to red.