A note on thermally decoupled W Ursae Majoris systems

Details A note on thermally decoupled W Ursae Majoris systems A note on thermally decoupled W Ursae Majoris systems

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..377l&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, March 1988, p. 377-379.

Statistics

12

Binary Stars, Decoupling, Thermodynamic Properties, Astronomical Catalogs, Statistical Analysis, Stellar Motions

Scientific paper

The thermal decoupling degree of short-period contact or near-contact systems is studied. Statistics of well-observed W UMa systems including new beta-light-curve objects was made for thermal-decoupling degree, spectral type, and orbital period. W UMa systems of type A and W are found to be well characterized by these parameters. W-type objects show a good (linear) correlation in the spectral type vs. thermal-decoupling parameter diagram. This extends to the lower border of the diagram for A-type systems, otherwise scattered in an area of large thermal decoupling. These empirical facts are analyzed in terms of contact or noncontact configurations.

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