2004A&A...415..155B


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.22CEST12:06:48

2004A&A...415..155B - Astronomy and Astrophysics, volume 415, 155-170 (2004/2-3)

Oxygen trends in the Galactic thin and thick disks.

BENSBY T., FELTZING S. and LUNDSTROEM I.

Abstract (from CDS):

We present oxygen abundances for 72 F and G dwarf stars in the solar neighbourhood. Using the kinematics of the stars we divide them into two sub-samples with space velocities that are typical for the thick and thin disks, respectively. The metallicities of the stars range from [Fe/H]≃-0.9 to +0.4 and we use the derived oxygen abundances of the stars to: (1) perform a differential study of the oxygen trends in the thin and the thick disk; (2) to follow the trend of oxygen in the thin disk to the highest metallicities. We analyze the forbidden oxygen lines at 6300Å and 6363Å as well as the (NLTE afflicted) triplet lines around 7774Å. For the forbidden line at 6300Å we have spectra of very high S/N (>400) and resolution (R>215000). This has enabled a very accurate modeling of the oxygen line and the blending Ni lines. The high internal accuracy in our determination of the oxygen abundances from this line is reflected in the very tight trends we find for oxygen relative to iron. From these abundances we are able to draw the following major conclusions: (i) That the [O/Fe] trend at super-solar [Fe/H] continues downward which is in concordance with models of Galactic chemical evolution. This is not seen in previous studies as it has not been possible to take the blending Ni lines in the forbidden oxygen line at 6300Å properly into account; (ii) That the oxygen trends in the thin and the thick disks are distinctly different. This confirms and extends previous studies of the other α-elements; (iii) That oxygen does not follow Mg at super-solar metallicities; (iv) We also provide an empirical NLTE correction for the infrared OI triplet that could be used for dwarf star spectra with a S/N such that only the triplet lines can be analyzed well, e.g. stars at large distances; (v) Finally, we find that Gratton et al. (1999A&A...350..955G) overestimate the NLTE corrections for the permitted oxygen triplet lines at ∼7774Å for the parameter space that our stars span.

Abstract Copyright:

Journal keyword(s): stars: fundamental parameters - stars: abundances - galaxy: disk - galaxy: formation - galaxy: abundances - galaxy: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/A+A/415/155): table4.dat>

Simbad objects: 72

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Number of rows : 72

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 HD 3628 PM* 00 39 13.2653 +03 08 02.135   7.98   6.9   G3V 110 0
2 G 267-153 PM* 00 39 57.8235581267 -33 57 41.222970321   7.18 6.69     F7V 64 0
3 HD 3823 PM* 00 40 25.6702570458 -59 27 16.565812842   6.44 5.88     G0VFe-0.9CH-0.4 142 0
4 HD 3795 PM* 00 40 32.7956054102 -23 48 17.719009278   6.84 6.14     K0VFe-1.5CH-1.3 173 0
5 HD 4308 PM* 00 44 39.2675256910 -65 38 58.282490370 7.31 7.193 6.552     G6VFe-0.9 210 1
6 HD 4597 PM* 00 47 30.7544865350 -36 56 24.703387139   8.39 7.85     F7/8V 68 1
7 * 29 Cet PM* 01 07 59.6638725048 +01 59 34.980233478   7.31   5.9   G8IV/V 137 0
8 * nu. Phe PM* 01 15 11.1225892742 -45 31 54.007631265 5.65 5.54 4.96 4.47 4.11 F9VFe+0.4 225 0
9 HD 9562 PM* 01 33 42.8353548073 -07 01 31.236482634 6.61 6.40 5.76     G1V 233 0
10 HD 12042 PM* 01 56 59.9846404530 -51 45 58.490027380   6.58 6.10     F8.5Fe-0.7 85 0
11 HD 14412 PM* 02 18 58.5046943868 -25 56 44.473476858   7.07 6.34     G8V 187 0
12 * lam02 For PM* 02 36 58.6079324808 -34 34 40.713450652 6.67 6.45 5.79     G1V 174 1
13 HD 17006 PM* 02 42 08.4438019607 -46 31 27.989431339   6.985 6.094     K1III 41 0
14 * iot Hor PM* 02 42 33.4664838826 -50 48 01.056222150   5.97 5.40     F8V 333 1
15 * eps For PM* 03 01 37.6304831834 -28 05 29.376723799   6.68 5.85     G9:V 154 0
16 * 94 Cet PM* 03 12 46.4369076602 -01 11 45.949836281   5.631 5.070     F8.5V 398 1
17 HD 20407 PM* 03 15 06.3903001430 -45 39 53.360201463 7.326 7.334 6.756 6.426 6.103 G5VFe-1.2CH-1 92 0
18 * e Eri PM* 03 19 55.6509352 -43 04 11.217495 5.20 4.98 4.27 3.65 3.25 G6V 392 1
19 HD 22879 Pe* 03 40 22.0654223510 -03 13 01.124769689 7.146 7.222 6.667 6.346 6.016 G0VmF2 420 0
20 * del Eri RS* 03 43 14.9008787 -09 45 48.208444 5.13 4.46 3.54 2.82 2.32 K0+IV 533 0
21 * 58 Eri BY* 04 47 36.2917607568 -16 56 04.041927355   6.14 5.50     G2.5IV-V 378 0
22 * 59 Eri * 04 48 32.5337354995 -16 19 46.148858822   6.278 5.755     F8V 65 0
23 HD 32820 PM* 05 03 53.9525915816 -41 44 41.824737874   6.824 6.303     F8V 56 0
24 * 68 Eri PM* 05 08 43.6984486634 -04 27 22.340521388   5.546 5.119     F5.5VkF4mF2 200 0
25 * zet Pic PM* 05 19 22.1354058924 -50 36 21.477849008   5.96 5.45     F6IV 72 0
26 * alf Men PM* 06 10 14.4741194137 -74 45 10.963587125   5.81 5.09     G7V 242 1
27 HD 45701 PM* 06 24 26.6023843750 -63 25 44.422321250   7.12 6.46     G1V 98 0
28 HD 45184 PM* 06 24 43.8797456693 -28 46 48.416253741   7.01 6.39 6.24 8.94 G2Va 156 1
29 HD 130551 PM* 14 51 31.7225842858 -60 55 50.854065473   9.068 8.751     F5V 89 0
30 * nu.02 Lup PM* 15 21 48.1511171112 -48 19 03.462483973 6.35 6.30 5.65     G3/5V 225 1
31 HD 144585 PM* 16 07 03.3698772530 -14 04 16.670613953 7.22 6.98 6.32     G2V 154 0
32 HD 145148 PM* 16 09 11.2152519637 +06 22 43.291224462   6.97   5.3   K1.5IV 156 0
33 HD 147513 PM* 16 24 01.2905970257 -39 11 34.734611237 6.17 6.02 5.376     G5V 305 1
34 * zet TrA SB* 16 28 28.1396465547 -70 05 03.822057572   5.46 4.91     F9V 178 0
35 HD 149612 PM* 16 39 04.1415896072 -58 15 29.529494217 7.674 7.644 7.034 6.679 6.334 G5VFe-1.2CH-0.9 65 1
36 HD 152391 BY* 16 52 58.8025427362 -00 01 35.116299669   7.40 6.64     G8.5Vk: 330 0
37 HD 153075 PM* 17 00 31.6443757651 -57 17 49.575190335   9.415 8.910     G2VFe-0.8CH-0.5 83 0
38 V* V2213 Oph BY* 17 05 16.8186294192 +00 42 09.217571716   6.59   5.6   F8.5IV-V 314 0
39 HD 156098 PM* 17 17 03.6455012243 -32 39 46.224493384   6.021 5.526     F6V 94 0
40 HD 156365 PM* 17 18 07.1354097841 -24 04 22.881060858   7.27 6.59     G3V 70 0
41 HD 157089 PM* 17 21 07.0567914512 +01 26 34.981760941 7.60 7.59 7.01 6.46 6.14 F8VgF8mF6 232 0
42 HD 157466 PM* 17 22 27.6461103752 +24 52 45.934455673       6.6   F8V 106 0
43 HD 157347 PM* 17 22 51.2877095327 -02 23 17.439826176   6.965 6.278     G3V 155 0
44 * 84 Her PM* 17 43 21.5646072179 +24 19 40.157353689   6.394 5.729     G2IIIb 131 0
45 * mu. Ara PM* 17 44 08.7036342277 -51 50 02.591049123   5.85 5.15     G3IV-V 455 2
46 HD 162396 PM* 17 52 52.5828939517 -41 59 47.487625525   6.74 6.20     F9VFe-0.7CH-0.4 102 0
47 HD 165401 SB* 18 05 37.4544371448 +04 39 25.798102148 7.443 7.399 6.786 6.432 6.09 G2V 201 0
48 HD 169830 * 18 27 49.4852008378 -29 49 00.705771732   6.406 5.902 7.01   F7V 240 1
49 HD 172051 ** 18 38 53.4015065712 -21 03 06.741519593   6.518 5.860     G6V 167 1
50 HD 179949 PM* 19 15 33.2300861317 -24 10 45.673372382   6.772 6.237     F8V 338 1
51 * b Aql PM* 19 24 58.2002406780 +11 56 39.882312617 6.35 5.93   4.7   G7IVHdel1 447 0
52 HD 183877 PM* 19 32 40.3319928128 -28 01 11.312726275   7.83 7.15     G8VFe-1CH-0.5 82 0
53 HD 184985 PM* 19 37 34.4131265906 -14 18 06.491325235   5.938 5.451     F7V 82 0
54 HD 190360 PM* 20 03 37.4049065078 +29 53 48.495330996   6.44   5.2   G7IV-V 380 1
55 HD 190009 * 20 03 44.3096986231 -22 35 44.150595019   6.928 6.428     F7V 60 0
56 * del Pav PM* 20 08 43.6094697 -66 10 55.443275 4.78 4.32 3.56 2.95 2.61 G8IV 343 0
57 HD 193307 PM* 20 21 41.0361307297 -49 59 57.901102060   6.82 6.28     F9V 112 0
58 HD 197214 SB* 20 43 15.9971544063 -29 25 26.107915068 7.778 7.635 6.960 6.583 6.229 G6V 75 0
59 HD 199288 PM* 20 57 40.0679487434 -44 07 45.739637893   7.11 6.52     G2VFe-1.0 165 0
60 * 11 Aqr PM* 21 00 33.8407622602 -04 43 48.940823425   6.819 6.192     G1V 181 0
61 * gam Pav PM* 21 26 26.6048372 -65 21 58.314484 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 371 0
62 HD 208998 PM* 22 01 36.5233496256 -53 05 36.885322194   7.70 7.13     G0V 91 0
63 HD 210277 PM* 22 09 29.8657193934 -07 32 55.163014863   8.85 8.57 7.36   G8V 293 2
64 HD 210483 PM* 22 10 26.1624878567 +18 47 49.581239842   8.16   7.2   G4 63 0
65 HD 210918 PM* 22 14 38.65336 -41 22 53.9866 7.02 6.88 6.23     G2V 172 0
66 HD 211976 * 22 20 55.7976682555 +08 11 12.268074699   6.621 6.163     F5V 81 0
67 HD 212231 PM* 22 23 14.4741852246 -25 50 32.226826056   8.47 7.86     G2V 59 0
68 * rho Ind PM* 22 54 39.4829644814 -70 04 25.356610041 6.95 6.71 6.05     G1VFe+0.3 163 1
69 * 51 Peg ** 22 57 27.9804167474 +20 46 07.782240714 6.39 6.16 5.46 4.97 4.61 G2IV 1058 1
70 HD 217107 ** 22 58 15.5411942071 -02 23 43.387117210   6.919 6.163     G8IV/V 326 1
71 HD 224022 PM* 23 54 38.6212339113 -40 18 00.222023224   6.60 6.03     G0V 76 0
72 HD 224383 PM* 23 57 33.5186236762 -09 38 51.070720084   8.51 7.88     G3V 94 0

    Equat.    Gal    SGal    Ecl

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2019.10.22-12:06:48

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