No CrossRef data available.
Published online by Cambridge University Press: 12 April 2016
SIT Vidicon spectra (3500 - 5100 Å) with time resolutions of several minutes and spectral resolutions of 6 Å have been obtained of a sample of old novae at minimum light. For comparison, spectra of SCO X-1 (V818 Sco) are also presented. Velocity-resolved image-tube spectra of RR Pic 1925 indicate Doppler variations in the He II λ4686 emission line with a period ~ 3 hours, thus confirming the binary nature of RR Pic.