Abundances of neutron-capture elements in red giant stars

Details Abundances of neutron-capture elements in red giant stars Abundances of neutron-capture elements in red giant stars

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26at...25..463g&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 25, Issue 5, p.463-467

Astronomy and Astrophysics

Astrophysics

Scientific paper

The neutron-capture element abundances in the 52 red giants with metallicities spanning the range-0.6<[Fe]/[H]<0.25 are found. High-resolution spectra (R=42 000; S/N>100) for the investigated stars were obtained with the ELODIE spectrograph of the 1.93 m telescope at the Observatoire de Haute Provence (France). The determination of elemental abundances was carried out with the local thermodynamic equilibrium assumption by the model atmosphere method; for Ba and Eu the hyperfine structure was taken into account. The dependences of the neutron-capture element abundances on metallicity are presented.

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