J/A+A/415/155 Oxygen abundances in the Galactic disk (Bensby+, 2004)
Oxygen trends in the Galactic thin and thick disks.
Bensby T., Feltzing S., Lundstrom I.
<Astron. Astrophys. 415, 155 (2004)>
=2004A&A...415..155B 2004A&A...415..155B
ADC_Keywords: Abundances ; Equivalent widths
Keywords: stars: fundamental parameters - stars: abundances - Galaxy: disk -
Galaxy: formation - Galaxy: abundances -
Galaxy: kinematics and dynamics
Description:
Oxygen abundances for the 72 program stars. Column one gives the
Hipparcos number, columns 2-6 the derived oxygen abundances for the
different indicators relative to the photospheric oxygen abundance
ε(O)☉=8.83). Columns 7-11 give the abundances relative
to our solar abundances, i.e. [O/H]☉=0 for all indicators.
Columns 12-14 give the abundances for the triplet that have been
corrected for NLTE effects according the the prescription in Gratton
et al. (1999, Cat. J/A+A/350/955), and normalized to the new NLTE
corrected abundance for the Sun. Column 15 gives the NLTE correction
terms from Gratton et al. (1999, Cat. J/A+A/350/955) (GCEG) that
were applied to the abundances in columns 12-14. Column 15 gives the
empirical NLTE correction we determined (Eq. 1 in article. Columns
16-19 give the measured equivalent widths for the forbidden [OI] line
at 636.3nm and the permitted oxygen triplet lines at 777nm.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 138 73 Equivalent widths and oxygen abundances of the
72 program stars plus the Sun
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See also:
J/A+A/350/955 : Atmospheric parameters in metal-poor stars. II (Gratton+, 1999)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Hipparcos number (0=Sun)
9- 13 F5.2 [] A6300 ? Abundance [O/H] from 6300 line
15- 19 F5.2 [] A6363 ? Abundance [O/H] from 6363 line
22- 26 F5.2 [] A7772 ? Abundance [O/H] from 7771.95 line
29- 33 F5.2 [] A7774 ? Abundance [O/H] from 7774.17 line
36- 40 F5.2 [] A7775 ? Abundance [O/H] from 7775.39 line
43- 47 F5.2 [Sun] A6300n ? Normalized abundance [O/H] from 6300 line
50- 54 F5.2 [Sun] A6363n ? Normalized abundance [O/H] from 6363 line
57- 61 F5.2 [Sun] A7772n ? Normalized abundance [O/H] from 7771.95 line
64- 68 F5.2 [Sun] A7774n ? Normalized abundance [O/H] from 7774.17 line
71- 75 F5.2 [Sun] A7775n ? Normalized abundance [O/H] from 7775.39 line
78- 82 F5.2 [Sun] A7772nlte ? NLTE-corrected and normalized abundance [O/H]
from 7771.95 line
85- 89 F5.2 [Sun] A7774nlte ? NLTE-corrected and normalized abundance [O/H]
from 7774.17 line
92- 96 F5.2 [Sun] A7775nlte ? NLTE-corrected and normalized abundance [O/H]
from 7775.39 line
99-103 F5.2 [] nlteGCEG ? NLTE-correction from Gratton et al.
(J/A+A/350/955)
106-110 F5.2 [] nlteTW Empirical NLTE-correction from Eq. 1 in article
114-116 F3.1 0.1pm EW6363 ? Equivalent width of [OI] line at 6363Å
119-123 F5.1 0.1pm EW7772 ? Equivalent width of OI line at 7771.95Å
126-130 F5.1 0.1pm EW7774 ? Equivalent width of OI line at 7774.17Å
133-137 F5.1 0.1pm EW7775 ? Equivalent width of OI line at 7775.39Å
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Acknowledgements: Thomas Bensby
(End) Thomas Bensby [Lund Observatory, Sweden], Patricia Bauer [CDS] 22-Dec-2003