TY - JOUR
T1 - The radial distribution of stars of different stellar generations in the globular cluster NGC 3201
AU - Carretta, Elisa
AU - Bragaglia, Angela
AU - D'Orazi, V.
AU - Lucatello, Sara
AU - Gratton, Raffaele G.
PY - 2010/9/15
Y1 - 2010/9/15
N2 - 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.
AB - 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.
KW - globular clusters: general
KW - globular clusters: individual: NGC 3201
KW - stars: abundances
KW - stars: atmospheres
KW - stars: population II
UR - http://www.scopus.com/inward/record.url?scp=77956749019&partnerID=8YFLogxK
U2 - 10.1051/0004-6361/201014996
DO - 10.1051/0004-6361/201014996
M3 - Article
AN - SCOPUS:77956749019
VL - 519
JO - Astronomy & Astrophysics
JF - Astronomy & Astrophysics
SN - 0004-6361
IS - 8
M1 - A71
ER -