J/A+A/354/169 Metal-poor field stars abundances (Gratton+, 2000)
Mixing along the red giant branch in metal-poor field stars
Gratton R.G., Sneden C., Carretta E., Bragaglia A.
<Astron. Astrophys. 354, 169 (2000)>
=2000A&A...354..169G 2000A&A...354..169G
ADC_Keywords: Stars, metal-deficient ; Abundances, peculiar ;
Stars, population II ; Stars, giant
Keywords: stars: Hertzsprung-Russel (HR) and C-M diagrams - stars: evolution -
stars: Population II - Galaxy: globular clusters: general
Abstract:
We have determined Li, C, N, O, Na, and Fe abundances, and 12C/13C
isotopic ratios for a sample of 62 field metal-poor stars in the
metallicity range -2≤[Fe/H]≤-1. Stars were selected in order to have
accurate luminosity estimates from the literature, so that
evolutionary phases could be clearly determined for each star. We
further enlarged this dataset by adding 43 more stars having accurate
abundances for some of these elements and similarly well defined
luminosities from the literature.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 82 63 Basic data for the programme star
table2.dat 59 61 Equivalent widths for O and Na lines
table3.dat 69 62 Atmospheric parameters and Fe abundances
table5.dat 75 62 Abundances for the programme stars
table6.dat 61 105 Abundances for the extended sample
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See also:
J/AJ/107/1577 : Halo red giants reddening (Anthony-Twarog+, 1994)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- HD/BD HD or BD number
10- 13 F4.2 mag Vmag V magnitude
15- 19 F5.3 mag B-V B-V colour index
21- 25 F5.3 mag b-y b-y colour index
27- 31 F5.3 mag m1 ? m1 colour index
33- 37 F5.3 mag c1 ? c1 colour index
39- 43 F5.3 mag E(b-y) Colour excess
45- 49 F5.2 mag VMAGh ? Hipparcos (Cat. I/239) absolute V magnitude
51- 55 F5.2 mag VMAGa ? Anthony-Twarog & Twarog (ATT, Cat.
J/AJ/107/1577) absolute V magnitude
1987AJ.....94.1222A 1987AJ.....94.1222A, 1994AJ....107.1577A 1994AJ....107.1577A
57- 61 F5.2 mag VMAG Adopted absolute V magnitude
63- 64 I2 h RAh Right ascension (J2000) from Simbad
66- 67 I2 min RAm Right ascension (J2000) from Simbad
69- 72 F4.1 s RAs Right ascension (J2000) from Simbad
74 A1 --- DE- Declination sign (J2000) from Simbad
75- 76 I2 deg DEd Declination (J2000) from Simbad
78- 79 I2 arcmin DEm Declination (J2000) from Simbad
81- 82 I2 arcsec DEs Declination (J2000) from Simbad
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- HD/BD HD or BD number
10- 13 F4.1 0.1pm EW([OI]6300.3) ? Equivalent width of [OI] 6300.3Å
15- 18 F4.1 0.1pm EW([OI]6363.83) ? Equivalent width of [OI] 6363.83Å
20- 24 F5.1 0.1pm EW(OI7771.9) ? Equivalent width of OI 7771.9Å
26- 29 F4.1 0.1pm EW(OI7774.2) ? Equivalent width of OI 7774.2Å
31- 34 F4.1 0.1pm EW(OI7775.4) ? Equivalent width of OI 7775.4Å
36- 39 F4.1 0.1pm EW(NaI5682.6) ? Equivalent width of NaI 5682.6Å
41- 45 F5.1 0.1pm EW(NaI5688.2) ? Equivalent width of NaI 5688.2Å
47- 50 F4.1 0.1pm EW(NaI6154.2) ? Equivalent width of NaI 6154.2Å
52- 55 F4.1 0.1pm EW(NaI6160.8) ? Equivalent width of NaI 6160.8Å
57- 59 A3 --- Source [MCL +] Source (1)
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Note (1): M = McDonald telescope, C = ESO CAT telescope, L = literature data
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- HD/BD HD or BD name
10- 13 I4 K Teff Effective temperature
15- 18 F4.2 [cm/s+2] logg Surface gravity
20- 24 F5.2 [Sun] [A/H] Abundance [A/H] (logarithmic scale)
26- 29 F4.2 km/s Vel Turbulence velocity
31- 35 F5.2 [solLum] logL Luminosity
37- 38 I2 --- o_FeI Number of Fe I lines
40- 44 F5.2 [Sun] [FeI/H] Metallicity from Fe I lines
46- 49 F4.2 [Sun] e_[FeI/H] ? rms of abundances from Fe I lines
51- 55 F5.2 [Sun] [FeII/H] ? Metallicity from Fe II lines
57- 59 A3 --- Source [MCL +] Source (1)
61- 69 A9 --- Phase Evolutionary phase
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Note (1): M = McDonald, C = CAT, L = literature data
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- HD/BD HD or BD number
10- 14 F5.2 [solLum] logL Luminosity
16- 20 F5.2 [Sun] [Fe/H] Metallicity
22 A1 --- l_logE(Li) Limit flag on logE(Li)
23- 27 F5.2 --- logE(Li) ? logarithmic abundance (by number) in a scale
where the abundance of H is 12.00
29- 33 F5.2 [Sun] [C/Fe] ? Relative abundance [C/Fe]
35- 39 F5.2 [Sun] [N/Fe] ? Relative abundance [N/Fe]
40 A1 --- u_[N/Fe] Uncertainty flag on [N/Fe]
42- 45 F4.2 [Sun] [O/Fe]1 ? Relative abundance [O/Fe] from [OI] lines
47- 51 F5.2 [Sun] [O/Fe]2 ? Relative abundance [O/Fe] from OI lines
(non-LTE)
53- 57 F5.2 [Sun] [O/Fe] ? Adopted relative abundance [O/Fe]
59- 63 F5.2 [Sun] [Na/Fe] ? LTE Relative abundance [Ne/Fe]
65- 69 F5.2 [Sun] [Na/Fe]n ? non-LTE Relative abundance [Ne/Fe]
71 A1 --- l_12C/13C Limit flag on 12C/13C
72- 73 I2 --- 12C/13C ? Ratio 12C/13C
75- 77 A3 --- Source [MC] Source (M=McDonald, C=CAT)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- HD/BD HD or BD name
10- 14 F5.2 [solLum] logL Luminosity
16- 20 F5.2 [Sun] [Fe/H] Metallicity
22 A1 --- l_logE(Li) Limit flag on logE(Li)
23- 27 F5.2 --- logE(Li) ? logarithmic abundance (by number) in a scale
where the abundance of H is 12.00
29- 33 F5.2 [Sun] [C/Fe] ? Relative abundance [C/Fe]
35- 39 F5.2 [Sun] [O/Fe] ? Relative abundance [O/Fe]
41- 45 F5.2 [Sun] [Na/Fe]1 ? LTE relative abundance [Na/Fe]
47- 51 F5.2 [Sun] [Na/Fe]2 ? Non-LTE relative abundance [Na/Fe]
53- 61 A9 --- Phase Evolutionary phase
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Acknowledgements: Raffaele Gratton
(End) Patricia Bauer [CDS] 22-Nov-1999