CCD photometry of the RR Lyrae variables in the LMC cluster NGC 2257 and the adjacent field
- Observatorio Interamericano de Cerro Tololo, La Serena (Chile)
B and V band CCD photometry is used to study 33 cluster and nine field RR Lyrae variables near the LMC cluster, NGC 2257. It is found that the mean magnitudes for the two groups differ by 0.17 mag. The cluster and field variables both have an Fe/H abundance ratio of -1.8 + or - 0.1. The results are compared used to compare NGC 2257 with galactic globular clusters, showing that NGC 2257 is indistinguishable from its local counterparts. 53 refs.
- OSTI ID:
- 7058821
- Journal Information:
- Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 98; ISSN 0004-6256; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Studies of extragalactic RR Lyrae stars
UBV photometry of RR Lyrae variables in the globular cluster NGC 6121 (M4)
BV photometry of RR Lyrae variables in the globular cluster NGC 3201
Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:5413240
UBV photometry of RR Lyrae variables in the globular cluster NGC 6121 (M4)
Journal Article
·
Mon Oct 01 00:00:00 EDT 1979
· Astron. J.; (United States)
·
OSTI ID:5786791
BV photometry of RR Lyrae variables in the globular cluster NGC 3201
Journal Article
·
Tue Jan 31 23:00:00 EST 1984
· Astron. J.; (United States)
·
OSTI ID:5202919
Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGE-COUPLED DEVICES
GALAXIES
GIANT STARS
INTERSTELLAR SPACE
MAGELLANIC CLOUDS
PHOTOMETRY
SEMICONDUCTOR DEVICES
SPACE
STAR CLUSTERS
STAR EVOLUTION
STARS
VARIABLE STARS
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGE-COUPLED DEVICES
GALAXIES
GIANT STARS
INTERSTELLAR SPACE
MAGELLANIC CLOUDS
PHOTOMETRY
SEMICONDUCTOR DEVICES
SPACE
STAR CLUSTERS
STAR EVOLUTION
STARS
VARIABLE STARS