Fig. 6.


Download original image

Comparison between EPT, SIS and HET data for the 21–23 July 2020 event for the sunward-facing telescopes. The upper panel shows the SIS and HET-B proton intensity together with the EPT ion spectrum in the magnet channel over the nominal H energy range. The filled symbols show the measured spectra after the subtraction of a quiet-time spectrum. This quiet-time spectrum was acquired between 18–20 July and is shown as empty symbols. Error bars are statistical. The noticeable increase of intensity in the quiet-time SIS proton spectrum above a few MeV is due to ACRs. The middle panel adds the quiet-time-corrected SIS spectra for H, 3He, 4He, O, and Fe. The black line up to about 6 MeV represents the sum of the SIS ion species intensities that can be compared to the EPT spectrum in the nominal H energy range as explained in the text. Above 7 MeV we compare the EPT ion spectrum in the nominal He energy range and the sum of heavy ions measured by SIS as a gray solid line. The bottom panel shows the ratio of the sum between the relevant SIS ion spectra and the EPT spectra to allow a better comparison. The gray-shaded area marks the propagated statistical errors.

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.