Alonso-García, J.2; Catelan, M.2; Amigo, P.2; Cortés, C.2; Kuehn, C. A.2; Grundahl, F.3; López, G.2; Salinas, R.2; Smith, H. A.2; Stetson, P. B.2; Sweigart, A. V.2; Valcarce, A. A. R.2; Zoccali, M.2
1 Department of Physics and Astronomy, Science and Technology, Aarhus University2 unknown3 Department of Physics and Astronomy, Science and Technology, Aarhus University
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 Strömgren system. We intend to photometrically separate these populations and characterize their radial distributions and extensions.