Proper motions of open clusters within 1 kpc based on the TYCHO2 Catalogue

Citation
Ws. Dias et al., Proper motions of open clusters within 1 kpc based on the TYCHO2 Catalogue, ASTRON ASTR, 376(2), 2001, pp. 441-447
Citations number
28
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS
ISSN journal
14320746 → ACNP
Volume
376
Issue
2
Year of publication
2001
Pages
441 - 447
Database
ISI
SICI code
1432-0746(200109)376:2<441:PMOOCW>2.0.ZU;2-G
Abstract
We present mean absolute proper motions of 112 open clusters, determined us ing the data from the Tycho2 Catalogue. For 28 clusters, this is the first determination of proper motion. The measurements made use of a large number of stars (usually several tens) for each cluster. The total number of star s studied in the fields of the 164 open clusters is 5016, of which 4006 wer e considered members. The mean proper motions of the clusters and membershi p probability of individual stars were obtained from the proper motion data by applying the statistical method proposed by Sanders (1971).