Star counts in the globular cluster M71

Journal Article · Sat Apr 01 00:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167286· OSTI ID:5841936

Richer, H B; Fahlman, G G

Star counts were carried out on V CCD frames of the globular cluster M71. A systematic radial variation in the main-sequence luminosity function of the cluster is observed, clearly demonstrating that mass segregation is operative in the cluster. The mass segregation predicted by an isotropic multimass King model is shown to be in good agreement with the present observations. The observations are consistent with those expected from a cluster undergoing dynamical relaxation. 27 refs.

• Research Organization: British Columbia Univ., Vancouver (Canada)
• OSTI ID: 5841936
• Journal Information: Astrophys. J.; (United States), Vol. 339
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
STAR CLUSTERS
MASS DISTRIBUTION
CHARGE-COUPLED DEVICES
DYNAMICS
LUMINOSITY
MASS
NONLUMINOUS MATTER
PHOTOMETRY
RELAXATION
SPATIAL DISTRIBUTION
WHITE DWARF STARS
DISTRIBUTION
DWARF STARS
MECHANICS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources