Open Access

Fig. 6.


Download original image

Quiet-Sun intensity distribution in the IRIS Mg II wavelength band at the preflare time (01:43:41 UT). Panel a: full spectra of the Mg II band between λ = 2784 Å and λ = 2835 Å (50 Å), the dashed horizontal black lines indicate y = 10, 170, and 180, which represent quiet-Sun regions. Panel b: spectral profile of the full range of Mg II lines for the three y pixel values (10, 170, and 180). Panels c and d: zoom of two parts of the spectral profile at the two ends of the wavelength band, shown by two cyan vertical lines right and left in panels a and b, respectively. The intensity is calibrated in erg s−1 sr−1 cm−2 Å−1.

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.