Subluminous stars in the Hyades region

Details Subluminous stars in the Hyades region Subluminous stars in the Hyades region

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..844h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, June 1983, p. 844-852.

Statistics

10

Star Clusters, Stellar Magnitude, Stellar Motions, Astrometry, Electrophotometry, Radial Velocity, Star Distribution, Statistical Analysis, Stellar Color, Stellar Luminosity

Scientific paper

Proper-motion and photometric surveys of the Hyades cluster have discovered some 50 stars sharing the Hyades motion but lying about two magnitudes below the cluster main sequence. The long-standing question of the nature of these 'subluminous stars in the Hyades' (SLH stars) has never been genuinely resolved. In this paper the observational statistics of the Hyades proper motions, photometry, and new radial velocities are discussed. It is demonstrated that the SLH stars are neither subluminous nor Hyades members. Comparisons with known Hyades field stars and with a simple theoretical model show quantitatively that the SLH stars are ordinary background field stars.

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