An improved method for computing membership probabilities in open clusters.
Abstract
Relative proper motions in the region of open clusters are fitted to a model by a maximum likelihood procedure for determining the frequency distribution function parameters for field and cluster stars. The clusters NGC 2168, 2281, 2420, 6633, 6823 and 7062 are reexamined for membership. Key words: open clusters - relative proper motions - cluster membership probabfflties
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- September 1971
- Bibcode:
- 1971A&A....14..226S