Abstract
Based on the near to the Sun boundary of the Skylab north polar coroi ' l estimated from the AS & E X-ray photographs and on the density profile fi-C)I white light data, Munro and Jackson (1977) concluded that substantial energy the solar wind flux is required up to at least 5 Rs. In this paper we recalculate `eloci y and temperature profiles for the same hole but considering a different bo ' ry for flux tube which is larger at its base, according to the HAO K- obser"' (i()I0 , the OSO-7 EUV spectroheliograms and pictures of the solar 4500 A. è take into account the uncertainties inherent in the white light observations () electron density profile and consider different possible values of the solar I .' fltix at 1 AU. We that the differences introduced are not sufficient to discard ii y of an extended energetization of the wind, one of the possibilities allowed for fltix the observational uncertailities shows a very good agreement wi4 an NI Ill) seli'consistent modelling with the only additional term of the Lorentz force in the iiii equation. Key words: SUN-CORONA
