出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The Cambridge STARS code is used to model the evolution and nucleosynthesis of binary zerometallicity
low to intermediate mass stars. The surfaces of these stars are enriched in CNO elements
after second dredge up. During binary interaction metals can be released from these stars
and the secondary enriched in CNO. The observed abundances of HE 0107-5240 can be reproduced
from enhanced wind accretion from a 7M⊙ after second dredge up. HE 1327-2326, richer
in nitrogen and Sr, can similarly be formed by wind accretion in a later AGB phase after third
dredge up.
