The Remarkable Eclipsing Binary TW Draconis

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Authors

ZEJDA Miloslav MIKULÁŠEK Zdeněk WOLF Marek SVOBODA Petr

Year of publication 2006
Type Article in Proceedings
Conference Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240, held 22-25 August, 2006 in Prague, Czech Republic,
MU Faculty or unit

Faculty of Science

Citation
Web http://journals.cambridge.org/jid_IAU
Field Astronomy and astrophysics
Keywords Methods: data analysis; methods: statistical; stars: chemically peculiar; stars: individual (HD 90044; HD 125248); stars: magnetic fields; stars: variables; other; techniques: photometric
Description We analyzed a new photometry of this well-known Algol-like eclipsing binary together with old photoelectric measurements with the aim of better understanding of its orbital period changes and short-time light variations modulating the mean light curve. The analysis has been done by the new method based on the principal component analysis and robust regression. New spectroscopic observations and radial velocity curve are also presented, as well as the solution of the light curve of the system.
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