461717.fig.0017a
(a)
461717.fig.0017b
(b)
461717.fig.0017c
(c)
461717.fig.0017d
(d)
Figure 17: Spatial structures, bordered by spirals of IMF and comprising decreased fluxes of low-energy protons (Ep~1 MeV), projected onto the ecliptic plane. Time periods from left to right: August 22–September 04, 1978; October 29–November 09, 1979; December 06–23, 1979; January 05–23, 1981. The spirals were calculated from solar wind velocities measured on IMP-8 at the beginning and at the end of intervals with “caverns”—intervals with low fluxes of protons.