Proper motions, membership, and photometry in the globular cluster M22

Abstract

view Abstract Citations (78) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Proper motions, membership and photometry in the globular cluster M 22. Cudworth, K. M. Abstract Proper motions and photographic photometry have been obtained for 672 stars in the region of the globular cluster M22. Nearly all stars discussed as members in various spectroscopic studies of this cluster are confirmed as members by means of the proper motions. The cluster internal velocity dispersion is clearly seen in the proper motions and is isotropic in the limited region observed here. The astrometric distance to the cluster agrees well with that derived by assuming horizontal branch M(v) = 0.6. The cluster space velocity is derived and shows that the cluster has recently passed through the Galactic plane. Publication: The Astronomical Journal Pub Date: August 1986 DOI: 10.1086/114164 Bibcode: 1986AJ.....92..348C Keywords: Astrometry; Astronomical Catalogs; Globular Clusters; Stellar Motions; Stellar Spectrophotometry; Color-Magnitude Diagram; Data Reduction; Isotropic Media; Milky Way Galaxy; Velocity Distribution; Astrophysics full text sources ADS | data products SIMBAD (407)