Spectroscopic and Photometric Detection of Interacting Processes and Their Evolution in the Eclipsing Binary Tx-Ursae
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 Ondřejov 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.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- December 1992
- DOI:
- 10.1007/BF00644309
- Bibcode:
- 1992Ap&SS.198..149K
- Keywords:
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- Eclipsing Binary Stars;
- Light Curve;
- Stellar Evolution;
- Stellar Spectrophotometry;
- Radial Velocity;
- Spectrographs;
- Stellar Orbits;
- Astrophysics