Studies of the open cluster M11. 1. Proper motion measurement and membership determination.

Details Studies of the open cluster M11. 1. Proper motion measurement and membership determination. Studies of the open cluster M11. 1. Proper motion measurement and membership determination.

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996acasn..37..294s&link_type=abstract

Acta Astron. Sin., Vol. 37, No. 3, p. 294 - 302

Astronomy and Astrophysics

Astronomy

Open Clusters: Proper Motions, Open Clusters: Membership

Scientific paper

10 plate pairs with epoch differences of 16 - 70 years of the open cluster M11 are measured. The relative proper motions of 872 stars in the cluster region are determined, of which accuracies of 85% are better than ±0″1 per century. The membership probabilities of all individual stars are calculated, in which the stars with membership probabilities higher than 0.7 being 541. Furthermore, the authors have found just from the results of the distribution parameter solutions of M11 that there appears to be some evidence for the effect of space mass segregation and some less significant effect of velocity mass segregation for the cluster.

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