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Astron. Astrophys. 344, 277-281 (1999) AcknowledgementsThis work has been partially supported by the joint program: "Low energy Indicators: the hunters of Be/X-ray systems" between the CNR (Italy) and CONICET (Argentina). The spectra discussed in this paper are available on request at the e-mail address polcaroCsaturn.ias.rm.cnr.it. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1999 Online publication: March 10, 1999 ![]() |