Exploring Star Clusters Using Stromgren uvby Photometry

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dc.creatorGrundahl, F.
dc.creatorVandenBerg, D. A.
dc.creatorStetson, P. B.
dc.creatorAndersen, M. I.
dc.creatorBriley, M.
dc.creator.
dc.date1999-09-27
dc.date.accessioned2026-07-07T02:33:30Z
dc.date.available2026-07-07T02:33:30Z
dc.descriptionWe illustrate the application of high precision Stromgren uvby photometry to open and globular clusters (GCs). It is shown how such data can be used to determine cluster ages, independent of distance and only weakly dependent on reddening. We also illustrate in detail how c1 index variations point to significant star-to-star abundance variations of C and N (through variations in the strength of the 3360AA NH band) on the red giant branches (RGBs) of all metal-poor GCs observed to date as well as on the main sequences of M71 (NGC 6838) and 47 Tuc (NGC 104).
dc.description6 pages, 3 figures, to appear in the proceedings of: "The Galactic Halo: from Globular Clusters to Field Stars"; 35'th Liege Int. Astroph. Coll., 1999
dc.identifierhttps://arxiv.org/abs/astro-ph/9909447
dc.identifierhttp://arxiv.org/abs/astro-ph/9909447
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14866
dc.subjectAstrophysics
dc.titleExploring Star Clusters Using Stromgren uvby Photometry
dc.typetext

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