Absolute proper motions of 93 open clusters (Dias+, 2002)

Details Absolute proper motions of 93 open clusters (Dias+, 2002) Absolute proper motions of 93 open clusters (Dias+, 2002)

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat..33880168d&link_type=abstract

VizieR On-line Data Catalog: J/A+A/388/168. Originally published in: 2002A&A...388..168D

Mathematics

Probability

Clusters: Open, Proper Motions

Scientific paper

We determined the mean absolute proper motion of 93 open clusters situated farther than 1 kpc from the Sun. The results are derived from the stellar proper motion data given in the Tycho2 Catalogue (). The mean proper motion of the clusters and membership probability of individual stars were obtained from the proper motion data by applying the statistical method proposed by Sanders (1971A&A....14..226S). The measurements made use of a large number of stars, usually several tens, for each cluster. The total number of stars investigated in the fields of the clusters is 4864 of which 2021 were considered members. For 55 clusters, this is the first determination of the proper motion. The distances, ages and kinematics parameters of the clusters can be accessed at http://www.iagusp.usp.br/~wilton (3 data files).