Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3189
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dc.contributor.authorRichtler, T-
dc.contributor.authorGrebel, E. K-
dc.contributor.authorSubramaniam, A-
dc.contributor.authorSagar, R-
dc.date.accessioned2008-08-18T11:17:41Z-
dc.date.available2008-08-18T11:17:41Z-
dc.date.issued1998-01-
dc.identifier.citationAstronomy and Astrophysics Supplement, Vol.127, No. 2, pp. 167 - 179en
dc.identifier.issn0365-0138-
dc.identifier.urihttp://hdl.handle.net/2248/3189-
dc.description.abstractWe present CCD photometry in V and I for the metal-rich globular cluster NGC 6528. A comparison with previous photometry reveals discrepancies of the order 0.1 to 0.2 mag in V, emphasizing the need for independent photometry. As found previously, the giant branch (or the asymptotic giant branch, which cannot be distinguished) of the cluster extends to V-I = 7. Population synthesis in V-I must take these red stars into account in order to understand integrated red colours of bulge populations. Currently available theoretical isochrones do not reproduce the shape of the RGB/AGB. The derivation of reliable values for reddening, distance and metallicity of NGC 6528 is hampered by uncertainties in the extrapolation to high metallicity, which dominate the absolute error rather than the photometric uncertainty does. Together with other properties (old age derived from HST data, high radial velocity), this object is more likely a member of the bulge than of the disk population. Table 6 containing the photometry of individual stars is only available in electronic form via anonymous ftp 130.79.128.5 or http: //cdsweb.u-strasbg.fr/Abstract.html Based on observations obtained at the European Southern Observatory, La Silla, Chile.en
dc.format.extent2700265 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherEuropean Southern Observatoryen
dc.relation.urihttp://dx.doi.org/10.1051/aas:1998341en
dc.subjectGalaxy: Globular Clusters: Generalen
dc.subjectIndividual: NGC 6528en
dc.subjectGalaxy Abundancesen
dc.subjectStars: Late-Typeen
dc.subjectHR Diagramen
dc.titleVI CCD photometry of metal-rich globular clusters: NGC 6528en
dc.typeArticleen
Appears in Collections:IIAP Publications

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