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astro-ph2007★ 1 cited
A cool R Coronae Borealis star Z UMi
Tonu Kipper, Valentina Klochkova
The high resolution spectra of a R CrB type star Z UMi are analysed. The atmospheric parameters of Z UMi are estimated: Teff=5250+/-250K and log g=0.5+/-0.3. This places Z UMi amon…
astro-ph2007
The optical spectrum of R Coronae Borealis close to 2003 decline
Tonu Kipper, Valentina Klochkova
Two sets of high-resolution spectra of R CrB obtained during the 2003 light decline are described. The first set was obtained on the descending branch of the light curve when V ~12…