Abundances in stars of galactic sub-structures (Mishenina+, 2011)

T. V. Mishenina 1 T. I. Gorbaneva 1 N. Yu. Basak C. Soubiran 2 V. V. Kovtyukh 1
2 M2A 2012
L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux, OASU - Observatoire aquitain des sciences de l'univers, LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac], Université Sciences et Technologies - Bordeaux 1
Abstract : We have determined abundances of copper, zinc, sodium, and aluminium in the atmospheres of 172 F, G, and K dwarf stars (-1.0<[Fe/H]<0.3) belonging to the Galaxy's thin and thick disks and to the Hercules moving group. Our observations were performed with the ELODIE echelle spectrometer on the 1.93-m telescope of the Haute ProvenceObservatory, with a resolving power of R=42000 and signal-to-noise ratio S/N>100. The Na, Al, Cu, and Zn abundances were derived in an LTE approximation; the synthetic spectrum for the copper lines was calculated taking into account super-fine structure of the lines. We analyzed the abundances of these elements as a function of metallicity [Fe/H] for stars of the thin and thick disks of the Galaxy and the Hercules moving group. The Cu abundances and their trends with metallicity are essentially the same in the three studied sub-structures. The mean Al and Zn abundances for stars of the thin and thick disks differ significantly. (3 data files).
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2012yCat.80880750M - VizieR On-line Data Catalog: J/AZh/88/750. Originally published in: 2011AZh.. 2012, pp.80750
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https://hal.archives-ouvertes.fr/hal-00839199
Contributeur : Marie-Paule Pomies <>
Soumis le : jeudi 27 juin 2013 - 14:15:36
Dernière modification le : lundi 13 octobre 2014 - 15:43:25

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T. V. Mishenina, T. I. Gorbaneva, N. Yu. Basak, C. Soubiran, V. V. Kovtyukh. Abundances in stars of galactic sub-structures (Mishenina+, 2011). 2012yCat.80880750M - VizieR On-line Data Catalog: J/AZh/88/750. Originally published in: 2011AZh.. 2012, pp.80750. <hal-00839199>

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