Periodicity and distribution of the sudden disappearances of solar prominences in the chromosphere

Abstract

This paper presents the results of the study on the periodicity and the distribution of the sudden disappearance of the solar prominences (SD) on the chromosphere. The spectral analysis of the SD, from 1039 to 1762 Carrington rotation number, shows a typical period at 138 (∼10.3 yr) solar rotations in the northern hemisphere and at 153 (∼11.4 yr) solar rotations in the southern hemisphere of the Sun. The power spectral analysis of the asymmetry index yields a primary peak at 155 (∼11.6 yr) solar rotations. By plotting the distribution of SD along the Carrington longitude, it can be seen that the distribution of the SD is nearly uniform.