Abstract
view Abstract Citations (87) References (56) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Blue Straggler Stars in the Globular Cluster NGC 5053 Nemec, James M. ; Cohen, Judith G. Abstract A study of the low central concentration globular cluster NGC 5053 based on photometry to 23 mag is reported. Deep C-M diagrams are presented, a mean metal abundance for the cluster is derived from the color of the RGB at the level of the horizontal branch, and theoretical isochrones are used to derive a distance modulus of (m - M0) = 16.05 + or - 0.14 mag and an age of 18 + or - 3 Gyr. A luminosity function based on subgiant and upper main-sequence stars is also constructed. A total of 24 blue stragglers in NGC 5053 are identified and their properties are studied. Publication: The Astrophysical Journal Pub Date: January 1989 DOI: 10.1086/167049 Bibcode: 1989ApJ...336..780N Keywords: Binary Stars; Blue Stars; Globular Clusters; Stellar Spectrophotometry; Abundance; Charge Coupled Devices; Color-Magnitude Diagram; Stellar Evolution; Stellar Luminosity; Stellar Magnitude; Astrophysics; CLUSTERS: GLOBULAR; STARS: BINARIES; STARS: EVOLUTION; STARS: STELLAR DYNAMICS full text sources ADS | data products SIMBAD (33) CDS (1)
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