Publication details

mCP stars with photometrically simple behaviour

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Authors

MIKULÁŠEK Zdeněk GRÁF Tomáš KRTIČKA Jiří ZVERKO Juraj ŽIŽNOVSKÝ Jozef

Year of publication 2008
Type Article in Periodical
Magazine / Source Contributions of the Astronomical Observatory Skalnaté Pleso
MU Faculty or unit

Faculty of Science

Citation
web http://www.ta3.sk/caosp/Eedition/Abstracts/2008/Vol_38/No_2/pp467-468_abstract.html
Field Astronomy and astrophysics
Keywords stars: chemically peculiar; stars: variables: light curves; methods: data analysis
Description We analyzed uvby and Hp light curves of 19 well-observed magnetic CP stars selected from the On-line Database of Photometric Observations of mCP Stars, of which light curves in all the five colours were similar. We assumed that among these stars with photometrically simple behaviour (PSB) could be found ones with a single photometric spot. The knowledge gained by analysing those simple situations would help us comprehend more complicated cases. Light curves of the 19 PSB mCP stars proved generally to be nearly symmetrical, but surprisingly diverse. The analysis shows that only in the case of HD 110956B, HD 188041, and perhaps HD 193722 are we able to explain their photometric behaviour by a simple one-spot model. Occurrence of more than one photometric spot on an mCP star is therefore more typical.
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