On the radial distribution of stars of different stellar generations in the globular cluster NGC 3201
arXiv:1006.5867 · doi:10.1051/0004-6361/201014996
Abstract
We study the radial distribution of stars of 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 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.
Accepted for publication on Astronomy and Astrophysics