Spectroscopic and photometric detection of interacting processes and their evolution in the eclipsing binary TX UMa |
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| Authors: | R Kom?ík L Hric J Grygar |
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| Institution: | (1) Astronomical Institute of the Slovak Academy of Sciences, Tatranská Lomnica, Czech and Slovak Federal Republic;(2) Institute of Physics of Czechoslovak Academy of Sciences, Prague, Czech and Slovak Federal Republic |
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| Abstract: | Nearly one century of spectroscopic and photometric observations of eclipsing binary TX UMa offer a good opportunity for studying evolutionary processes in this system. Extensive spectroscopic observations carried out with the D.A.O. high-dispersion spectrographs in 1969–70 and at the Ond ejov Observatory in 1972–80 cover all radial velocity curve with particular emphasis on phases within primary minimum of the light curve. The manifestations of interacting processes as well as the presence of the spectrum of secondary component are examined in the ever changing line spectra. Photometric observations having been collected at the Skalnaté Pleso Observatory since 1966 display orbital period changes. Evolution of period changes using this photometric material in connection with the published data is presented. |
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