On the accuracy of stellar chemical abundances determined by means of model atmospheres

Details On the accuracy of stellar chemical abundances determined by means of model atmospheres On the accuracy of stellar chemical abundances determined by means of model atmospheres

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986afz....25..103l&link_type=abstract

(Astrofizika, vol. 25, July-Aug. 1986, p. 103-118) Astrophysics (ISSN 0571-7132), vol. 25, no. 1, Jan. 1987, p. 415-425. Transla

Astronomy and Astrophysics

Astrophysics

7

Abundance, Atmospheric Models, Spectrum Analysis, Stellar Atmospheres, Stellar Composition, Accuracy, Line Spectra, Stark Effect, Stellar Spectra, Thermodynamic Equilibrium

Scientific paper

A comparison is made between different programs (WIDTH 5, WIDTH 6, and KONTUR) for calculating the profiles and equivalent widths of absorption lines. It is shown that, in calculations of medium and strong lines, the quadratic Stark effect must be taken into account. The influence of the model atmospheres on the theoretical line profiles is investigated and the accuracy of element abundances determined via model atmospheres is estimated.

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