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The Remarkable Eclipsing Binary TW Draconis

Published online by Cambridge University Press:  09 August 2007

M. Zejda ,
Z. Mikulášek ,
M. Wolf  and
P. Svoboda
M. Zejda
Affiliation:
Institute of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic
Z. Mikulášek
Affiliation:
Institute of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic
M. Wolf
Affiliation:
Astronomical Institute of the Charles University, Faculty of Mathematics and Physics, V Holešovičkách 2, CZ-180 00 Praha 8, Czech Republic
P. Svoboda
Affiliation:
Výpustky 5, CZ-614 00 Brno, Czech Republic
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Abstract

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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 combination of the principal component analysis and robust regression. New spectroscopic observations and radial-velocity curve are also presented.

Keywords

binaries: eclipsingoscilationsstars: individual (TW Dra)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 567 - 570
Copyright
Copyright © International Astronomical Union 2007

References

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