2.1 Selected areas
Figure 2: Selected areas, from which averaged CDS spectra were
extracted.
Figure 3: Averaged CDS spectra of a few selected regions, during the small flare.
First three rows: note that
in the brightenings positions (B1, B2, B3) the O IV line
at 626 Å
is quite intense. High densities in the range 2.5-7 x 1011 cm-3
can be derived.
Last row: note that in In the C3 region, there is no Fe XIX emission.
Instead, an unidentified coronal line is present. The O IV line is
almost invisible, in the wing of the bright Mg X line.