Solar wind properties at the earth as predicted by the one-fluid model with helioclassical thermal electron conductivity

The solar wind properties at the earth are computed for a variety of values of the density and temperature at the base of the corona. For the electron thermal conductivity the expression derived by Perkins is adopted. Good agreement with observations is obtained for values of the density and temperature at the base of the corona equal to ∼9 × 107 cm−3 and ∼1.7 × 106 °K, respectively.