A Systematic Search for Members of the Hyades Supercluster - Part Two - the Visual Binaries

Details A Systematic Search for Members of the Hyades Supercluster - Part Two - the Visual Binaries A Systematic Search for Members of the Hyades Supercluster - Part Two - the Visual Binaries

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..839e&link_type=abstract

ASTRONOMICAL JOURNAL V. 89:6, NO.1541, P. 839, 1984

Astronomy and Astrophysics

Astronomy

18

Scientific paper

Ten percent of a sample of 350 visual binaries within 100 pc of the Sun and with reasonably reliable proper motions and orbital elements are members of the Hyades Supercluster. The components of the supercluster binaries are distributed in the (Mv, B - V) plane in the same way as the single stars of the supercluster and photometry of a few stars indicates Hyades metal abundance. The reddest single stars and binary components in the supercluster populate the high-luminosity border of the main-sequence band. Although the systems in the Hyades cluster are, in the mean, slightly undermassive with respect to the ML relation, the mean deviation of the mass sums for all supercluster binaries, with one excep- tion, from those predicted by the ML relation derived from large-parallax field stars, is only -0.02 ± 0.23(σ) sun.

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