4 papers
Stellar abundance patterns. What is the possible level of completeness today ?
V. Gopka, A. Yushchenko, F. Musaev +6
We discuss the way of increasing of the number of chemical elements, investigated in stellar spectra. We can reach it by using spectrum synthesis method, new atomic data and observ…
The Millennium Outburst of the Cool Hypergiant Rho Cassiopeiae: Spectroscopy and Modeling
A. Lobel, A. K. Dupree, R. P. Stefanik +7
Between 2000 June and September an exceptional variability phase occurred in the peculiar F-type hypergiant Rho Cas, when the V-brightness dimmed by at least a full magnitude. The…
Atmospheric abundances of CP SB2 star components of equal masses. II. 66 Eridani
A. V. Yushchenko, V. F. Gopka, V. L. Khokhlova +2
We report the results of abundance determination for the components of the SB2 star 66 Eri (M_A/M_B=0.97) from high resolution CCD echelle spectra with S/N>=100 taken with the 1-m…
Discovery of the secondary star of the HgMn binary kappa Cancri
T. Ryabchikova, O. Kotchoukhov, G. Galazutdinov +2
A careful investigation of a CCD spectrum of the SB1 system kappa Cnc in the spectral region 3800 A - 8000 A resulted in the discovery of the lines of the secondary star. We then a…