Pre-supernova mixing in CEMP-no source stars

Choplin, Arthur; Ekström, Sylvia; Meynet, Georges; Maeder, André; Georgy, Cyril; Hirschi, Raphael

Abstract

Context. CEMP-no stars are long-lived low-mass stars with a very low iron content, overabundances of carbon and no or minor signs for the presence of s- or r-elements. Although their origin is still a matter of debate, they are often considered as being made of a material ejected by a previous stellar generation (source stars).
Aims. We place constraints on the source stars from the observed abundance data of CEMP-no stars.
Methods. We computed source star models of 20, 32, and 60 M? at Z = 10

Citation

Choplin, A., Ekström, S., Meynet, G., Maeder, A., Georgy, C., & Hirschi, R. (2017). Pre-supernova mixing in CEMP-no source stars. Astronomy & Astrophysics, 605, A63 -A63. https://doi.org/10.1051/0004-6361/201630182

• Journal Article Type: Article
• Acceptance Date: May 26, 2017
• Publication Date: Sep 11, 2017
• Journal: Astronomy & Astrophysics
• Print ISSN: 0004-6361
• Publisher: EDP Sciences
• Peer Reviewed: Peer Reviewed
• Volume: 605
• Article Number: A63
• Pages: A63 -A63
• DOI: https://doi.org/10.1051/0004-6361/201630182
• Keywords: stars, abundances, massive, chemically peculiar, nuclear reactions, nucleosynthesis, interiors
• Publisher URL: https://doi.org/10.1051/0004-6361/201630182