出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:The abundances of Fe, C, N, and Ba have been derived for the Carbon-Enhanced Metal-Poor
star HE 1305+0132. The C and N abundances are typical of CEMP stars. The Ba abundance,
derived for the first time for HE 1305+0132, is found to be enhanced relative to Fe, placing this
star in the CEMP-s group. Combined with a previously derived highly enhanced abundance of F,
the chemical composition of HE 1305+0132 strongly suggests that it has been polluted via mass
transfer by a more evolved companion as it passed through its asymptotic giant branch phase.