Arthur Choplin
Clues on the first stars from CEMP-no stars
Choplin, Arthur; Meynet, Georges; Maeder, André; Hirschi, Raphael; Ekström, Sylvia; Chiappini, Cristina
Authors
Abstract
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 12C/13C may be reproduced by the spinstar ejecta if we assume different mass cuts when adding the supernova material to the wind ejecta.
Citation
Choplin, A., Meynet, G., Maeder, A., Hirschi, R., Ekström, S., & Chiappini, C. (2015). Clues on the first stars from CEMP-no stars. Proceedings of the International Astronomical Union, 11(S317), 282-283. https://doi.org/10.1017/s1743921315006808
Journal Article Type | Article |
---|---|
Conference Name | Proceedings of the International Astronomical Union - The General Assembly of Galaxy Halos: Structure, Origin and Evolution |
Online Publication Date | May 9, 2016 |
Publication Date | 2015-08 |
Deposit Date | Jun 15, 2023 |
Journal | Proceedings of the International Astronomical Union |
Print ISSN | 1743-9213 |
Electronic ISSN | 1743-9221 |
Publisher | Cambridge University Press |
Peer Reviewed | Peer Reviewed |
Volume | 11 |
Issue | S317 |
Pages | 282-283 |
DOI | https://doi.org/10.1017/s1743921315006808 |
Keywords | Astronomy and Astrophysics; Space and Planetary Science |
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