Astron. Astrophys. 360, 447-456 (2000)

Acknowledgements

The authors are grateful to Dominik Bomans for stimulating discussions, and to Dr. Olga Sil'chenko for her substantial and constructive report. The ROSAT project is supported by the German Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF) and the Max-Planck-Society. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, Caltech, under contract with the NASA. Observations made with the NASA/ESA Hubble Space Telescope were used, obtained from data archive at STScI. STScI is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under the NASA contract NAS 5-26555.

© European Southern Observatory (ESO) 2000

Online publication: August 17, 2000
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