The radial distribution of stars of different stellar generations in the globular cluster NGC 3201

Elisa Carretta, Angela Bragaglia, V. D'Orazi, Sara Lucatello, Raffaele G. Gratton

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Abstract

We study the radial distribution of stars from different stellar generations in the globular cluster NGC 3201. From recently published multicolour photometry, a radial dependence of the location of stars on the giant branch was found. We coupled the photometric information to our sample of 100 red giants with Na, O abundances and with known classification as first or second-generation stars. We find that giants stars of the second generation in NGC 3201 show a tendency to be more centrally concentrated than stars of the first generation, supporting less robust results from our spectroscopic analysis.

Original languageEnglish
Article numberA71
JournalAstronomy & Astrophysics
Volume519
Issue number8
DOIs
Publication statusPublished - 15 Sep 2010
Externally publishedYes

Keywords

  • globular clusters: general
  • globular clusters: individual: NGC 3201
  • stars: abundances
  • stars: atmospheres
  • stars: population II

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