Periodic variations in the spectrum of the dwarf nova WX Hyi in outburst and minimum

Abstract

We present the analysis of spectrograms obtained during quiescence and during an ordinary outburst of the SU UMa type dwarf nova WX Hyi (ESO 3.6m telescope, B&C spectrograph with Image Disector Scanner, 171 Amm−1, range 4000–7000 A, time resolution 6min.). The radial velocities of these spectra have been discussed by Schoembs and Vogt (1981) who also derived the orbital elements of WX Hyi. The phasesϕmax refer to these elements. All velocities discussed here are with respect to the white dwarf, not to the center of mass of the binary system.