THE EFFECTS OF ALFVEN WAVES ON HEATING PLASMA IN POST-FLARE LOOPS

In investigating the effects of collision Alfven waves on the heating of a cool-type solar loop, like the post-flare loop, models are proposed, and the distributions of ion or electron density, temperature, pressure, and wave energy density are simulated. We assumed the magnetic field strength in the loop is about 100 G and found that Alfven waves can propagate through the whole loop, that is to say, the decay length of collision Alfven waves which we consider can reach to the height or length of the loop. Thus, the Alfven wave heating is a considerable heating mechanism in cool loops. And we also found that the variations of density, pressure, and wave energy density are more significant than those of the temperature. In the whole loop, the temperature is of the order of approximately 10(4) K. In comparison with other parameters, the temperature can be considered as homogeneous; hence, the heat conductive flux in the simulations is omitted.