![]() | ![]() |
Astron. Astrophys. 318, 1-10 (1997) AcknowledgementsWe would like to thank Jean-Michel Alimi for discussions, and Arno G. Weiß for constructive contributions and discussions. GK and TB were both supported by the "Sonderforschungsbereich 375 für Astro-Teilchenphysik der Deutschen Forschungsgemeinschaft". All authors acknowledge financial support from a DAAD exchange program. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: July 8, 1998 ![]() |