![]() | ![]() |
Astron. Astrophys. 326, 662-668 (1997) AcknowledgementsThe ROSAT project is supported by the German Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF/DARA) and the Max-Planck-Gesellschaft. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: October 15, 1997 |