High resolution spectroscopy of symbiotic stars. III. Radial velocity curve for CD--43(deg) 14304

We have obtained a series of high resolution optical spectra of the symbiotic system CD-43(deg14304) . We derive the radial velocity curve of the cool component and determine an orbital period of about 1448 days and a mass function of m_f=0.013M_sun for this binary. We present line profiles of Hα and the Raman scattered line at lambda 6825 for various orbital phases. The Hα line shows very strong variations in flux and spectroscopic structure which are locked to the orbital phase. Much less variability is seen in the Raman scattered line. Based on observations obtained at the European Southern Observatory, La Silla, Chile