Physics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.203..197n&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 203, no. 2, p. 197-210.
Physics
6
Astronomical Photometry, Eclipsing Binary Stars, Light Curve, Ophiuchi Clouds, Electrophotometry, Stellar Physics, Stellar Spectra
Scientific paper
The A-type W UMa system V566 Oph was observed photoelectrically in two wavebands (B and V) in the years 1988-1989 at the Kryonerion Astronomical Station of the National Observatory of Athens, Greece. The light curves of the system are analyzed using frequency-domain techniques, and new geometric and photometric elements are derived. These elements are combined with the more recent spectroscopic data based on Reticon observations to yield the absolute parameters of the system. The evolutionary status of the system is considered and it is found that V566 Oph has started its evolution away from the Main Sequence. The period of the system continues to increase.
Niarchos Panagiotis G.
Rovithis Peter
Rovithis-Livaniou Helen
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