Detail: Active Region, Intensities and Line Shifts

The same region is shown in three different wavelengths that were taken simultaneously: S VI at 933 Å, Lyman epsilon (upper chromosphere, 15 000 K) at 937.8 Å and S VI at 944.5 Å. The intensities are on the same scale; they range from less than 2 ("black") to more than 660 ("white") counts/line/arcsec²/s. Actually, the peak intensity in the white dot is even higher (approx. 1200 in S VI and 1900 in Ly eps).

For the same region, the shift in the center of gravity of the first S VI line is shown; the darkest blue and the darkest red correspond to more than 5 pixels shift. ("White" pixels have either insignificant shift or insignificant intensity.) One spectral pixel corresponds to approx. 0.044 Å.

For the same region, the line broadening of the first S VI line is shown.

IED, 20.Jun.96