Kameswara Rao, N; Reddy, B. E; Lambert, D. L
(Blackwell Publishing, 2004-12)
Two high-resolution optical spectra of the R Coronae Borealis (R CrB) star UW Cen in decline are discussed. A spectrum from mid-1992 when the star had faded by 3 mag shows just a few differences with the spectrum at maximum ...