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Astron. Astrophys. 358, 956-992 (2000) AcknowledgementsWe like to thank Prof. Dr. S. Owocki for continuous and engaged collaboration, and our referee, Prof. A. Maeder, for useful suggestions concerning the manuscript. This work has been supported by the German Deutsche Forschungsgemeinschaft, DFG , project number Pu 117/2-1/2 and partly also by the DLR , project FKZ 50 OR 9413 6. All numerical simulations were performed on the basis of the ZEUS-2D code developed at the National Center for Supercomputing Applications (NCSA) at the University of Urbana, Illinois. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 2000 Online publication: June 20, 2000 ![]() |