CCD photometry of NGC 2257 RR Lyrae

DOI

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+/-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.

Cone search capability for table J/AJ/98/2086/table6 (Photometry for the NGC 2257 non-variables)

Cone search capability for table J/AJ/98/2086/variables (Variables in the field of NGC 2257)

Identifier
DOI http://doi.org/10.26093/cds/vizier.50982086
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/98/2086
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/98/2086
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/98/2086
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/98/2086
Provenance
Creator Walker A.R.
Publisher CDS
Publication Year 2008
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy