Kinematical Properties of a Yale Common Proper-Motion Group

Details Kinematical Properties of a Yale Common Proper-Motion Group Kinematical Properties of a Yale Common Proper-Motion Group

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nssl.conf..447l&link_type=abstract

The Nearby Stars and the Stellar Luminosity Function, Proceedings of IAU Colloquium No. 76 held 13-16 June 1983 at Wesleyan Univ

Physics

2

Scientific paper

Image-tube spectra at 43 Å/mm were obtained at CTIO for the stars of Yale proper motion group no. 38 and radial velocities were determined from these spectra. The radial velocity distribution of this group has two peaks at -10 and -40 km/s indicating that it may consist of at least two subgroups. The (U,V), (U,W) and (V,W) space velocity distributions of this group indicate that the majority of stars is forming a relatively tight group in the UVW space except for the giant stars in the group. It is evident that these giants are unrelated to the group of stars although they share the same proper motion.

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