THE SOLAR-WIND ANGULAR-MOMENTUM AND ENERGY CARRIED BY THE INTERPLANETARY MAGNETIC-FIELD

Solutions already found by one of the authors with a two-region model of the solar coronal expansion are used to analyze the transport of angular momentum and energy by the interplanetary magnetic field. In agreement with observations, it is predicted that the interplanetary magnetic field plays an insignificant role for the flux of energy, but carries a large amount of angular momentum. The appropriate description might be related to the replacement of classical transport coefficients by a collisionless heat flux equation in the outer region of the model. The Sun's loss of angular momentum may affect the strength of the solar rotation in the long term.