High spectral resolution observations of the peculiar star RX Puppis obtained with the International Ultraviolet Explorer suggest the presence of a complex gaseous ring system which surrounds an accreting hot secondary. The anomalous line intensity ratio of the C IV A.A-1548, 1550 doublet during the observations exceeded the optically thick limit, implying the presence of a high-velocity wind. Additionally, the C IV doublet exhibits about four or five narrow emission components, which are redshifted up to velocities of at least - + 300 km s -I (with respect to the rest wavelength).
Kafatos, M., Michalitsianos, A.G., Fahey, R.P. (1985) High Dispersion Untraviolet Spectra of the Peculiar Star RX Puppis, The Astrophysical Journal Supplement Series, 59: 785-798. doi: 10.1086/191085