Fig. 2.From: Variability of solar/stellar activity and magnetic field and its influence on planetary atmosphere evolutionAverage stellar wind density (dashed line) and velocity (solid line) expected at 1 AU from present time (4.6 Gyr) to 0.7 Gyr, according to mass loss observations of Sun-like stars (Wood et al., 2005) and the power laws of Newkirk (1980). The shaded area represents to uncertainties of the solar wind density in time.Back to article page