Fig. 2.


Download original image

The probability density function (pdf) of the instantaneous frequencies of each mode of SOLSTICE/Lyman-α (121 nm) line. The histogram is smoothed with a KS (kernel smoothing) density function. The vertical red lines in modes 3–5 mark the harmonics of the solar rotation period, which correspond to ~13.5, ~27, and ~54 days. Maximum frequency distribution occurs at the following frequencies; 0.054, 0.034, and 0.015 in mode 3, 4, and 5, representing 18-day, 29.2-day, and 66.6-day period, respectively.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.