Image of c1993e taken by Mats Lindgren at ESO on March 28 1993.
Image of c1993e taken by Mats Lindgren at ESO on March 28 1993.
The Uppsala group, consisting of Mats Lindgren, Hans Rickman, Per Magnusson and Johan Lagerros and also Göran Scharmer from Stockholm were observing the collision events. The telescope used was the solar telescope of the Royal Swedish Academy of Sciences, at La Palma (Canary islands).
The advantages of using this telescope are that it is equipped with a combination of hardware and software which enables us to obtain both very high time resolution 'films' of the effects on Jupiter's visible cloud tops, as well as high spatial resolution (<0.5 arcsec) of the entire disc.
Time series of 10 frames (90k)
On the images from July 18, we have now detected the H plume rising into the sunlight, over the limb of Jupiter. Analysis of these images are now in progress. We hope to extract the height of the plume as a function of time, and compare with independent height measurements of the dark impact scar seen on later images.
In this mosaic (108k) the L plume is rising over the limb of Jupiter on July 19.
The pictures so far available show the post impact dark spots in some detail. The following examples are from the evening of July 18. The images have been processed in such a way that the noise is reduced and a "false" yellow color has been used instead of a standard greyscale.
mpeg_play -dither gray to get the best result.
Mats.Lindgren@astro.uu.se