Proceedings of the Workshop
"The Magellanic Clouds and Other Dwarf Galaxies"
of the Bonn/Bochum-Graduiertenkolleg

Holes and Shells in Galaxies:

Observations versus Theoretical Concepts

Jan Palous


Fig. 1. GS62.1+0.2-18: the l-b intensity map at the LSR radial velocity -18.3 km s-1 (left panel), RV-b cut at l = 62.3° (right panel)

Fig. 2. GS60.1-0.3+15: the l-b intensity map at the LSR radial velocity +15.1 km s-1 (left panel), l-RV cut at b = -0.3° (right panel)

Fig. 3. The expanding shell in the thick H I disk, result of 3D simulation using the thin shell approximation. R-z cut of the artificial data cube at the radial velocity equal to the systematic velocity of the shell relative to the observer (left panel), RV-z cut crossing the center of the shell (right panel)

Fig. 4. The expanding shell in the thin H I disk, result of 3D simulation using the thin shell approximation. R-z cut of the artificial data cube at the radial velocity equal to the systematic velocity of the center of the shell relative to the observer (left panel), RV-z cut crossing the center of the shell (right panel)

Fig. 5. The expanding shell, result of 3D simulation using the thin shell approximation. The values of the fragmentation integral along the expanding shell in the thick disk case (left panel), and in the thin disk case (right panel)

Diagrams like Figs. 1 and 2 can also be seen in the poster contribution 'New H I shells in the Milky Way' by Sona Ehlerová and Jan Palous: GS59.9-1.0+38 (Fig. 1) and GS60.0-1.1-54 (Fig. 2).
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First version: 05thJuly,1998
Last update: 25thSeptember,1998

Jochen M. Braun   &   Tom Richtler
 (E-Mail: jbraun|richtler@astro.uni-bonn.de)