GYROVISCOUS FORCES IN A COLLISIONLESS PLASMA WITH TEMPERATURE-GRADIENTS

The structure of gyroviscous forces due to the collisionless magnetic viscosity is considered for a plasma with finite temperature gradients and anisotropic perturbed pressure. The standard gyroviscous cancella tion is generalized for a plasma with del T not equal 0 by including e ffects of the third-order moments in the Braginskii's gyroviscosity te nser. New reduced plasma-density and parallel momentum-balance equatio ns are derived taking into account particle and heat flows along the e quilibrium magnetic field.