[alpha]-elements in mildly metal-poor stars

[alpha]-elements in mildly metal-poor stars

Accurate relative abundances of light elements (C to Ca) have been obtained in a sample of mildly metal-poor stars (Decauwer et al. 2005). Combined with the results of a previous study (Jehin et al. 1999), we find different slopes in the correlations between the different α-elements. These results c...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2005-05, Vol.1 (S228), p.393
Hauptverfasser: Decauwer, H, Jehin, E, Parmentier, G, Magain, P
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
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Zusammenfassung:Accurate relative abundances of light elements (C to Ca) have been obtained in a sample of mildly metal-poor stars (Decauwer et al. 2005). Combined with the results of a previous study (Jehin et al. 1999), we find different slopes in the correlations between the different α-elements. These results can be explained by postulating that the stars exhibiting lower than average α/Fe form in low mass clouds, unable to sustain the formation of very massive stars. [PUBLICATION ABSTRACT]
ISSN:1743-9213
1743-9221