We are grateful to the SEST staff for help with the observations. The work was supported in part by the INTAS grant 93-2168-ext and grants 96-02-16472, 99-02-16556 from the Russian Foundation for Basic Research and by DFG grant He 1935/14-1. This research has made use of the Simbad database, operated at CDS, Strasbourg, France. We acknowledge the observing time for IRAC2b and MANIAC imaging granted by the MPI for Astronomy (Heidelberg).
© European Southern Observatory (ESO) 2000
Online publication: January 29, 2001