Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.120...97e&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 120, no. 1, March 1986, p. 97-106. Research supported by the Scientific an
Astronomy and Astrophysics
Astrophysics
11
Eclipsing Binary Stars, Light Curve, Red Dwarf Stars, Starspots, Variable Stars, White Dwarf Stars, Stellar Spectrophotometry, Taurus Constellation
Scientific paper
The light curves of V471 Tau obtained in four successive years from 1981 to 1984 are presented. The light variations due to the tidally distorted red dwarf have been computed and subtracted out from the light curves obtained so far. A pure shape of the wave-like distortion has therefore been derived. The period of the retrograde migration has been found to be 182.17 days. On the other hand, the mean brightness of the system seems to vary with a period of about 18 years. The amplitude of the variation is greater at longer wavelength. The periodic variation of the mean brightness resembles the solar cycle of about 11.2 years, which depends upon the number of spots or spot groups.
Evren Serdar
Ibanoglu Cafer
Tumer O.
Tunca Zeynel
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