SIMBAD references

2004ApJ...600L..47I - Astrophys. J., 600, L47-L50 (2004/January-1)

The detection of low Eu abundances in extremely metal-poor stars and the origin of r-process elements.

ISHIMARU Y., WANAJO S., AOKI W. and RYAN S.G.

Abstract (from CDS):

We report abundance analyses of three extremely metal-poor stars with [Fe/H]≲-3 using the Subaru High Dispersion Spectrograph. All are found to have subsolar values of [Eu/Fe]. Comparison with our chemical evolution model of the Galactic halo implies the dominant source of Eu to be the low-mass end of the supernova mass range. Future studies of stars with low Eu abundances will be important to determine the r-process site.

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Journal keyword(s): Galaxy: Evolution - Galaxy: Halo - Nuclear Reactions, Nucleosynthesis, Abundances - Stars: Abundances - Stars: Population II - Stars: Supernovae: General

Simbad objects: 3

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