![]() | ![]() |
Astron. Astrophys. 321, 229-235 (1997) AcknowledgementsWe are grateful for the assistance of the WSRT telescope operator R. de Haan. The WSRT is operated by the Netherlands Foundation for Research in Astronomy (NFRA) with financial aid by the Netherlands Organization for Scientific Research (NWO). T. Galama is supported through a grant by NFRA under contract 781.76.011. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: June 30, 1998 ![]() |