Goswami, A; Kameswara Rao, N; Lambert, D. L; Gonzalez, G
(The Astronomical Society of the Pacific, 1997-05)
Z Ursa Minoris was classified by Benson et al. (1994) a a R Coronae Borealis (RCB) variable star from its light variations. Hydrogen deficiency, which is a defining feature of RCB stars, was not established. To investigate ...