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G2C2, IV : a novel approach to study the radial distributions of multiple populations in Galactic globular clusters

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Abstract
We use the horizontal branch (HB) morphology of 48 Galactic globular clusters (GCs) to study the radial distributions of the different stellar populations known to exist in GCs. Assuming that the (extremely) blue HB stars correspond to stars enriched in helium and light elements, we compare the radial distributions of stars selected according to colour on the HB to trace the distribution of the secondary stellar populations in GCs. Unlike other cases, our data show that the populations are well mixed in 80 per cent of the cases studied. This provides some constraints on the mechanisms proposed to pollute the interstellar medium in young GCs.
Keywords
RED GIANT BRANCH, RR LYRAE VARIABLES, NGC 1851, SDSS PASSBANDS, OMEGA-CENTAURI, MAIN-SEQUENCE, NA-O ANTICORRELATION, ROTATING MASSIVE STARS, HORIZONTAL-BRANCH STARS, 2 STELLAR POPULATIONS, globular clusters: general

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Chicago
Vanderbeke, Joachim, Roberto De Propris, Sven De Rijcke, Maarten Baes, Michael West, Javier Alonso-García, and Andrea Kunder. 2015. “G2C2, IV : a Novel Approach to Study the Radial Distributions of Multiple Populations in Galactic Globular Clusters.” Monthly Notices of the Royal Astronomical Society 451 (1): 275–281.
APA
Vanderbeke, J., De Propris, R., De Rijcke, S., Baes, M., West, M., Alonso-García, J., & Kunder, A. (2015). G2C2, IV : a novel approach to study the radial distributions of multiple populations in Galactic globular clusters. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 451(1), 275–281.
Vancouver
1.
Vanderbeke J, De Propris R, De Rijcke S, Baes M, West M, Alonso-García J, et al. G2C2, IV : a novel approach to study the radial distributions of multiple populations in Galactic globular clusters. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2015;451(1):275–81.
MLA
Vanderbeke, Joachim et al. “G2C2, IV : a Novel Approach to Study the Radial Distributions of Multiple Populations in Galactic Globular Clusters.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 451.1 (2015): 275–281. Print.
@article{7058567,
  abstract     = {We use the horizontal branch (HB) morphology of 48 Galactic globular clusters (GCs) to study the radial distributions of the different stellar populations known to exist in GCs. Assuming that the (extremely) blue HB stars correspond to stars enriched in helium and light elements, we compare the radial distributions of stars selected according to colour on the HB to trace the distribution of the secondary stellar populations in GCs. Unlike other cases, our data show that the populations are well mixed in 80 per cent of the cases studied. This provides some constraints on the mechanisms proposed to pollute the interstellar medium in young GCs.},
  author       = {Vanderbeke, Joachim and De Propris, Roberto and De Rijcke, Sven and Baes, Maarten and West, Michael and Alonso-Garc{\'i}a, Javier and Kunder, Andrea},
  issn         = {0035-8711},
  journal      = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
  language     = {eng},
  number       = {1},
  pages        = {275--281},
  title        = {G2C2, IV : a novel approach to study the radial distributions of multiple populations in Galactic globular clusters},
  url          = {http://dx.doi.org/10.1093/mnras/stv928},
  volume       = {451},
  year         = {2015},
}

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