Physics
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...269..310i&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 269, no. 1-2, p. 310-318.
Physics
8
Astronomical Photometry, Eclipsing Binary Stars, Stellar Activity, Computer Programs, Main Sequence Stars, Stellar Physics
Scientific paper
The extraordinarily active, short-period eclipsing binary ER Vulpeculae has been observed from 1981 to 1986. During this time interval 22 light curves in Johnson's B and V filters were obtained. The 16 light curves, which are almost complete, have been analyzed separately by means of WINK-10 code. The light curves include proximity effects, wavelike distortions, mutual eclipses, and short-term light fluctuations. A new approach for subtraction of the wavelike distortions from the observed light curves has been applied. The solutions of the cleaned light curves yield fairly different geometric elements due to the distortions of the very shallow eclipses by the short-term light fluctuations. The physical characteristics of the components are nearly identical to the sun except that the stars rotate over 40 times faster. The results obtained in this study clearly indicate that both of the components lie between the boundaries of zero- and terminal-age main sequence.
Akan Can M.
Evren Serdar
Ibanoglu Cafer
Keskin Varol
Tunca Zeynel
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