{
  "id": "1603.02827",
  "version": "v1",
  "published": "2016-03-09T09:50:16.000Z",
  "updated": "2016-03-09T09:50:16.000Z",
  "title": "Multiple stellar populations in the globular cluster M3 (NGC 5272): a Strömgren perspective",
  "authors": [
    "Davide Massari",
    "Emilio Lapenna",
    "Angela Bragaglia",
    "Emanuele Dalessandro",
    "Rodrigo Contreras Ramos",
    "Pia Amigo"
  ],
  "comment": "11 pages, 9 figures, 2 tables. Accepted for publication in MNRAS",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "We present Str\\\"omgren photometry of the Galactic Globular Cluster M3 to study its multiple generations phenomenon. The use of different colour-magnitude diagrams and especially of the notoriously efficient c_y index allowed us to detect a double Red Giant Branch in the cluster CMD. After decontamination from fore- and background sources, the two sequences turned out to be equally populated. The two components also show a bimodal radial distribution well corresponding to that predicted by numerical simulations for clusters living in an intermediate dynamical evolutive state and with a population with modified chemical composition that was born more centrally concentrated than the primordial. The analysis of high-resolution spectra quantitatively demonstrates that the two detected sequences correspond to the first (Na-poor) generation and the second (Na-rich) generation, thus confirming the importance of synergy between photometry and spectroscopy.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-03-09T09:50:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "multiple stellar populations",
      "strömgren perspective",
      "galactic globular cluster m3",
      "multiple generations phenomenon",
      "high-resolution spectra quantitatively demonstrates"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160302827M"
    }
  }
}