Spectral-line broadening functions of W UMa-type binaries. III - W UMa

Details Spectral-line broadening functions of W UMa-type binaries. III - W UMa Spectral-line broadening functions of W UMa-type binaries. III - W UMa

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106.1174r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 106, no. 3, p. 1174-1180.

Astronomy and Astrophysics

Astronomy

21

Binary Stars, Spectral Line Width, Mass To Light Ratios, Radial Velocity, Stellar Spectra

Scientific paper

High resolution spectra of the prototype of the class of contact binary stars obtained in 1988 and 1989 have been processed using the broadening function (BF) formalism. Our previous description of this formalism is supplemented here by a prescription for BF error determination. Our mass ratio, q = 0.49 +/-0.01, confirms McLean's (1981) result, but we find slightly larger values for the component masses. However, this discrepancy is at the same level as the difference between our 1988 and 1989 results. Absolute parameters of the primary component, corrected for the energy transfer, place it within the main-sequence band on the mass-luminosity relation.

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