Studying coherent scattering in the CP stars atmospheres

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Authors

FIŠÁK Jakub KUBÁT Jiří KRTIČKA Jiří

Year of publication 2018
Type Article in Periodical
Magazine / Source Contributions of the Astronomical Observatory Skalnaté Pleso
MU Faculty or unit

Faculty of Science

Citation
Web https://www.ta3.sk/caosp/Eedition/Abstracts/2018/Vol_48/No_1/pp213-217_abstract.html
Keywords stars: chemically peculiar; stars: atmospheres; atomic processes; scattering
Description Chemically peculiar stars form a very interesting class of stars which frequently show variability. The variability is probably caused by the uneven surface distribution of chemical elements. Some elements are overabundant and some elements are underabundant compared to the solar chemical composition. In the case of chemically overabundant composition some of the rare photon atom processes can be more important than in the atmospheres of stars with solar chemical composition. We study the importance of Rayleigh scattering by helium.
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