Prominence in N V (1238 Å)

More than 170 consecutive images - corresponding to 18 hours of continuous observation - were made by SUMER 09./10.Mar.96.

The frames above show a region of approx. 138 x 106 arcsec. Each frame consists of 121 rasters with an exposure time of 3 seconds per raster step, thus every image takes approx. 6 minutes. The region was rastered in alternating directions.

One movie was prepared using every other frame in triple size. Download the file containing data for this movie by clicking at N5_MOVIE_XDR.RST, which will get you an IDL/XDR restore file (1092 KB); then start the movie by running the program N5_MOVIE.PRO within IDL. If you want to produce up to 87 .gif files from the data cube, use the program N5_MOVIE_GIF.PRO within IDL. - The programs are commented.

new: Another movie was prepared using all frames, i.e. the full time resolution, in double size. Download the file containing data for this movie by clicking at N5_MOVIE_XDR_F.RST, which will get you an IDL/XDR restore file (2290 KB); then start the movie by running the program N5_MOVIE_F.PRO within IDL. If you want to produce up to 175 .gif files from the data cube, use the program N5_MOVIE_GIF_F.PRO within IDL. - The programs are commented.

• Figure 1: Full disk images in H alpha and He II
• Figure 2: Meudon spectroheliograms in H alpha and Ca K3
• Figure 3: He II images of EIT and some N V frames of SUMER

The movies show the Solar atmosphere in the Nitrogen V 1238 emission line (Transition Region, 150 000 K). You can observe the dynamics of prominences, loops, explosive events, and (if played quickly) the Solar rotation.

IED, 06.Mar.97