General properties of W Ursae Majoris systems

Details General properties of W Ursae Majoris systems General properties of W Ursae Majoris systems

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.217..843m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 217, Dec. 15, 1985, p. 843-866. CNR-supported research.

Astronomy and Astrophysics

Astronomy

33

Angular Momentum, Eclipsing Binary Stars, Light Curve, Stellar Luminosity, Stellar Mass, Astronomical Photometry, Hertzsprung-Russell Diagram, Histograms, Statistical Analysis, Tables (Data)

Scientific paper

The light curves of a sample of 42 W Ursae Majoris binary systems (21 W-type, 21 A-type) have been synthesized using the computer code of Wilson and Devinney (1971). The masses, radii and luminosities of the stars have been derived assuming the global properties of a contact binary system are the same as those of an analogous detached system. A table listing the main photometric data is given. Substantial continuity was observed in the physical properties of the A-type and the W-type systems, suggesting a scenario in which almost all of the A-type systems are the evolved counterparts of the W-types. The existence of an inhomogeneous group, probably evolved into contact from a detached configuration, is confirmed. An upper limit for the primary mass of the unevolved objects is derived.

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