Clues on the first stars from CEMP-no stars

被引：0

作者：

Choplin, Arthur ^{[1
]}

Meynet, Georges ^{[1
]}

Maeder, Andre ^{[1
]}

Hirschi, Raphael ^{[2
]}

Ekstrom, Sylvia ^{[1
]}

Chiappini, Cristina ^{[3
]}

机构：

[1] Univ Geneva, Geneva Observ, CH-1290 Sauverny, Switzerland

[2] Keele Univ, Astrophys Grp, Lennard Jones Lab, Keele ST5 5BG, Staffs, England

[3] Leibniz Inst Astrophys, Sternwarte 16, D-14482 Potsdam, Germany

来源：

GENERAL ASSEMBLY OF GALAXY HALOS: STRUCTURE, ORIGIN AND EVOLUTION | 2016年 / 11卷 / S317期

关键词：

stars: evolution; rotation; massive; abundances; nucleosynthesis; chemically peculiar;

D O I：

10.1017/S1743921315006808

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The material used to form the CEMP-no stars presents signatures of processing by the CNO cycle and by He-burning from a previous stellar generation called spinstars. We compare the composition of the ejecta (wind + supernova) of a spinstar model to observed abundances of CEMP-no stars. We show that observed abundances as well as the isotope ratio C-12/C-13 may be reproduced by the spinstar ejecta if we assume different mass cuts when adding the supernova material to the wind ejecta.

引用

页码：282 / 283

页数：2

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