Memberships of open clusters (Robichon+, 1999)

Details Memberships of open clusters (Robichon+, 1999) Memberships of open clusters (Robichon+, 1999)

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..33450471r&link_type=abstract

VizieR On-line Data Catalog: J/A+A/345/471. Originally published in: 1999A&A...345..471R

Computer Science

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Clusters: Open, Populations: Stellar, Radial Velocities

Scientific paper

New memberships, mean parallaxes and proper motions of all 9 open clusters closer than 300pc (except the Hyades) and 9 rich clusters between 300 and 500pc have been computed using Hipparcos (Cat. ) data. Precisions, ranging from 0.2 to 0.5mas for parallaxes and 0.1 to 0.5mas/yr for proper motions, are of great interest for calibrating photometric parallaxes as well as for kinematical studies. Careful investigations of possible biases have been performed and no evidence of significant systematic errors on the mean cluster parallaxes has been found. The distances and proper motions of 32 more distant clusters, which may be used statistically, are also indicated. (3 data files).