A model atmosphere analysis of the chemically peculiar star α And was carried out basing on 7 spectrograms with 2.4 Å/mm dispersion. The effective temperature Teff = 13700±500K and surface gravity lg g = 3.75±0.25 were determined. The analysis of the chemical composition was made for the comparison by two different model atmospheres. It is noted, that the discrepancy in Teff values inferred from the energy distribution in the visual region and from the ionization equilibrium might be a consequence of the binary nature of the star. The parameters of the components and some orbital elements are roughly estimated.
Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii
- Pub Date:
- Hg-Mn Stars: Stellar Atmospheres;
- CP Stars: Spectra