Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991baicz..42..215z&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 42, no. 4, July 1991, p. 215-218.
Astronomy and Astrophysics
Astronomy
Chemical Analysis, Stellar Atmospheres, Stellar Composition, Abundance, Atmospheric Composition, K Lines, Metallicity, Stellar Models, Stellar Spectra
Scientific paper
An analysis of the atmosphere of the CP3 star Pi(1) Boo using an LTE-blanketed model atmosphere is presented. The Ca-K line and Sr lines were calculated under the approximate NLTE option considering partial redistribution. The adopted value of microturbulence is discussed. A previous atmosphere analysis is revised by including more accurate gf-values and a different model atmosphere. The largest changes are in strontium, yttrium, scandium and carbon abundances derived from singly ionized lines. The elements strontium, yttrium and scandium are strongly overabundant while iron, titanium and calcium are underabundant; the abundance differences are in excess of 1 dex value.
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