The observations were made at the 3.5-m telescope of the German-Spain astronomical centre at Calar Alto. O. F. thanks for the grant from the Alexander von Humboldt Foundation for this research. We are grateful to Ruslan Yudin from the Pulkovo Observatory for providing us with (also unpublished) photometric and polarimetric data of Z CMa. We thank J. Eislöffel for comments on the Herbig-Haro flow of Z CMa.
© European Southern Observatory (ESO) 1998
Online publication: June 2, 1998