{ "id": "1301.2772", "version": "v1", "published": "2013-01-13T13:51:56.000Z", "updated": "2013-01-13T13:51:56.000Z", "title": "Multiple populations in Galactic globular clusters: a survey in the Strömgren system", "authors": [ "J. Alonso-García", "M. Catelan", "P. Amigo", "C. Cortés", "C. A. Kuehn", "F. Grundahl", "G. López", "R. Salinas", "H. A. Smith", "P. B. Stetson", "A. V. Sweigart", "A. A. R. Valcarce", "M. Zoccali" ], "comment": "4 pages, 2 figures. To appear in the proceedings of \"Reading the book of globular clusters with the lens of stellar evolution\", in the Memorie della Societa Astronomica Italiana", "categories": [ "astro-ph.GA", "astro-ph.SR" ], "abstract": "We are coming to believe that stellar populations in globular clusters are not as simple as they were once thought to be. A growing amount of photometric and spectroscopic evidence shows that globular clusters host at least two different stellar populations. In our contribution to these proceedings we present the first results of a survey we are conducting to look for the presence of multiple populations in a significant number of Galactic globular clusters, using the Str\\\"omgren system. We intend to photometrically separate these populations and characterize their radial distributions and extensions.", "revisions": [ { "version": "v1", "updated": "2013-01-13T13:51:56.000Z" } ], "analyses": { "keywords": [ "galactic globular clusters", "multiple populations", "strömgren system", "stellar populations", "globular clusters host" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1210566, "adsabs": "2013MmSAI..84...63A" } } }