HD207260 (A2 IAE) STAR ATMOSPHERE: FUNDAMENTAL PARAMETERS, ABUNDANCE OF ELEMENTS
Keywords:
fundamental parameters, stars, chemical composition, individual, HD207260, ( A2Ia)Abstract
Abstract. The atmosphere of the HD207260 (A2Ia) star is studied by the atmosphere model. The effective temperature Tef f of the star and the surface gravity g are determined by comparing the observational and theoretical estimates of equivalents widths W the Balmer lines and [c1], Q photometric indexes: Tef f = 9200±200K, logg = 1.4 ± 0.2. Based on FeII lines the microturbulent velocity is determined: ξt = 6km/sec. The abundance of elementsin the atmosphere of star HD207260 (A2Ia) has been determined. A deficiency in the content of carbon elements and an excess of sodium was found compared with the solar chemical composition. The content of other elements is close to the content of the Sun.
