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A Mass Estimate in a Sample of Double Stars

Published online by Cambridge University Press:  09 August 2007

S. Ninković  and
Z. Cvetković
S. Ninković
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade 74, Serbia email: sninkovic@aob.bg.ac.yu email: zcvetkovic@aob.bg.ac.yu
Z. Cvetković
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade 74, Serbia email: sninkovic@aob.bg.ac.yu email: zcvetkovic@aob.bg.ac.yu
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Abstract

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The total masses of binaries are calculated on the basis of their orbital elements from the Sixth Catalog of Orbits of Visual Binary Stars. They are then compared with the values resulted from the mass-luminosity relation for the Main Sequence where as the input data are used: trigonometric parallax, total apparent magnitude of the pair (source Hipparcos Catalogue) and magnitude difference (source Hipparcos Catalogue and Photometric Magnitude Difference Catalog). It seems that for the pairs indicated as having qualitative orbital elements the agreement between the total-mass values obtained in these two ways is satisfactory.

Keywords

binaries: visualstars: fundamental parameters (masses, parallaxes, magnitude difference)

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