New photoelectric observations of four W UMa systems - OO Aql, V839 Oph, V566 Oph, and SW Lac

Details New photoelectric observations of four W UMa systems - OO Aql, V839 Oph, V566 Oph, and SW Lac New photoelectric observations of four W UMa systems - OO Aql, V839 Oph, V566 Oph, and SW Lac

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.114...23l&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 114, no. 1, Sept. 1985, p. 23-118.

Astronomy and Astrophysics

Astrophysics

36

Abundance, Eclipsing Binary Stars, Light Curve, Stellar Composition, Stellar Spectrophotometry, Fourier Transformation, Optimization, Periodic Variations, Radial Velocity

Scientific paper

The W UMa-type systems (OO Aql, V839 Oph, V566 Oph, and SW Lac) were observed photoelectrically in two wavebands (B and V) during the years 1982 - 1983. The light curves of these systems are analysed using Kopal's frequency-domain technique and the optimisation method. New geometrical and physical elements have been determined. The absolute elements and the period variations of these systems are discussed.

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