TY - JOUR
T1 - Is extra mixing really needed in asymptotic giant branch stars?
AU - Karakas, Amanda Irene
AU - Campbell, Simon Wattana
AU - Stancliffe, Richard James
PY - 2010
Y1 - 2010
N2 - We demonstrate that the amount of extra mixing required to fit the observed low C/N and 12C/13C ratios in first giant branch (FGB) stars is also sufficient to explain the carbon and nitrogen abundances of Galactic asymptotic/second giant branch (AGB) stars. We simulate the effect of extra mixing on the FGB by setting the composition of the envelope to that observed in low-mass (M a?? 2 M ) FGB stars, and then evolve the models to the tip of the AGB
AB - We demonstrate that the amount of extra mixing required to fit the observed low C/N and 12C/13C ratios in first giant branch (FGB) stars is also sufficient to explain the carbon and nitrogen abundances of Galactic asymptotic/second giant branch (AGB) stars. We simulate the effect of extra mixing on the FGB by setting the composition of the envelope to that observed in low-mass (M a?? 2 M ) FGB stars, and then evolve the models to the tip of the AGB
UR - http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ApJ...713..374K&link_type=ARTICLE&db_key=AST&high=
U2 - 10.1088/0004-637X/713/1/374
DO - 10.1088/0004-637X/713/1/374
M3 - Article
SN - 0004-637X
VL - 713
SP - 374
EP - 382
JO - The Astrophysical Journal
JF - The Astrophysical Journal
IS - 1
ER -