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Frank Grundahl

Disentangling multiple stellar populations in globular clusters using the Str\"omgren system

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearch

  • 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
An increasing amount of spectroscopic and photometric evidence is showing that the stellar populations of globular clusters are not as simple as they have been considered for many years. The presence of at least two different populations of stars is being discovered in a growing number of globular clusters, both in our Galaxy and in others. We have started a series of observations of Galactic globular clusters using the Str\"omgren photometric system in order to find the signatures of these multiple populations and establish their presence in a more complete sample of globular clusters in the Milky Way, and to study their radial distributions and extensions. We present here the first results of our survey.
Original languageEnglish
Journaleprint arXiv:1212.5799
Volume1212
Pages (from-to)5799
Publication statusPublished - 1 Dec 2012

    Research areas

  • Astrophysics - Galaxy Astrophysics, Astrophysics - Solar and Stellar Astrophysics

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