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A study of contact binaries with large temperature differencies between components
Michal Siwak, Stanislaw Zola, Dorota Koziel-Wierzbowska
We present an extensive analysis of new light and radial-velocity (RV) curves, as well as high-quality broadening-function (BF) profiles of twelve binary systems for which a contac…
Analysis of variability of TW Hya as observed by MOST and ASAS in 2009
Michal Siwak, Slavek M. Rucinski, Jaymie M. Matthews +6
As a continuation of our previous studies in 2007 and 2008, new photometric observations of the T Tauri star TW Hya obtained by the MOST satellite and the ASAS project over 40 days…
Analysis of the MOST light curve of the heavily spotted K2IV component of the single-line spectroscopic binary II Pegasi
Michal Siwak, Slavek M. Rucinski, Jaymie M. Matthews +5
Continuous photometric observations of the visible component of the single-line, K2IV spectroscopic binary II Peg carried out by the MOST satellite during 31 consecutive days in 20…
Constraining the degree of the dominant mode in QQ Vir
Andrzej Baran, John Telting, Roy Ostensen +9
We present early results of the application of a method which uses multicolor photometry and spectroscopy for \ell discrimination. This method has been successfully applied to the…