J/AZh/88/750 Abundances in stars of galactic sub-structures (Mishenina+, 2011)
The copper and zinc abundances in stars of galactic sub-structures.
Mishenina T.V., Gorbaneva T.I., Basak N.Yu., Soubiran C., Kovtyukh V.V.
<Astron. Zh. 88, 750 (2011)>
=2011AZh....88..750M 2011AZh....88..750M
=2011ARep...55..689M 2011ARep...55..689M
ADC_Keywords: Stars, nearby ; Stars, dwarfs ; Abundances
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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 45 21 HD numbers, Teff, logg, [Fe/H], and the derived
elemental abundances for thick-disk stars
table2.dat 45 109 HD numbers, Teff, logg, [Fe/H], and the derived
elemental abundances for thin-disk stars
table3.dat 45 12 HD numbers, Teff, logg, [Fe/H], and the derived
elemental abundances for stars of the
Hercules moving group
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Byte-by-byte Description of file: table1.dat table2.dat table3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 11 I4 K Teff Effective temperature
13- 15 F3.1 [cm/s2] logg Surface gravity
17- 21 F5.2 [-] [Fe/H] Metallicity
23- 27 F5.2 [-] [Na/Fe] Na abundance
29- 33 F5.2 [-] [Al/Fe] ?=- Al abundance
35- 39 F5.2 [-] [Cu/Fe] ?=- Cu abundance
41- 45 F5.2 [-] [Zn/Fe] Zn abundance
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 14-Dec-2012