Further investigation on distributions of tangential discontinuity in the solar wind

The frequency of the occurrence of the tangential discontinuity was investigated at thirteen interacting regions (the leading edges) of the solar wind, where each averaged value of the total pressure reaches very much higher values, ranging from 3 x 10-10 to 12 x 10-10 erg/cm3, than the non-interacting regions (the troughs or the high velocity regions, less than or equal to 2 x 10-10 erg/cm3). The present result that the degree of the occurrence is considerably higher in the interacting region than in the non-interacting region was confirmed to be consistent with previous results. It was discovered that the occurrence frequency at the interacting region increases when strong interaction has occurred. (author)