2000A&AS..141..491C


Query : 2000A&AS..141..491C

2000A&AS..141..491C - Astron. Astrophys., Suppl. Ser., 141, 491-506 (2000/February-1)

Chemical composition of 90 F and G disk dwarfs.

CHEN Y.Q., NISSEN P.E., ZHAO G., ZHANG H.W. and BENONI T.

Abstract (from CDS):

High resolution, high S/N spectra have been obtained for a sample of 90 F and G main-sequence disk stars covering the metallicity range -1.0<[Fe/H]<+0.1, and have been analysed in a parallel way to the work of Edvardsson et al. (1993A&A...275..101E) in order to re-inspect their results and to reveal new information on the chemical evolution of the Galactic disk. Compared to Edvardsson et al. the present study includes several improvements. Effective temperatures are based on the Alonso et al. (1996A&A...313..873A) calibration of color indices by the infrared flux method and surface gravities are calculated from Hipparcos parallaxes, which also allow more accurate ages to be calculated from a comparison of MV and Teff with isochrones. In addition, more reliable kinematical parameters are derived from Hipparcos distances and proper motions in combination with accurate radial velocities. Finally, a larger spectral coverage, 5600-8800Å, makes it possible to improve the abundance accuracy by studying more lines and to discuss several elements not included in the work of Edvardsson et al. The present paper provides the data and discusses some general results of the abundance survey. A group of stars in the metallicity range of -1.0<[Fe/H]←0.6 having a small mean Galactocentric distance in the stellar orbits, Rm<7kpc, are shown to be older than the other disk stars and probably belong to the thick disk. Excluding these stars, a slight decreasing trend of [Fe/H] with increasing Rm and age is found, but a large scatter in [Fe/H] (up to 0.5 dex) is present at a given age and Rm. Abundance ratios with respect to Fe show, on the other hand, no significant scatter at a given [Fe/H]. The derived trends of O, Mg, Si, Ca, Ti, Ni and Ba as a function of [Fe/H] agree rather well with those of Edvardsson et al., but the overabundance of Na and Al for metal-poor stars found in their work is not confirmed. Furthermore, the Galactic evolution of elements not included in Edvardsson et al., K, V and Cr, is studied. It is concluded that the terms ``α elements" and ``iron-peak elements" cannot be used to indicate production and evolution by specific nucleosynthesis processes; each element seems to have a unique enrichment history.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: kinematics - Galaxy: abundances - Galaxy: evolution - Galaxy: solar neighbourhood

VizieR on-line data: <Available at CDS (J/A+AS/141/491): table3.dat table4.dat table5.dat>

Simbad objects: 89

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Number of rows : 89
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 400 PM* 00 08 40.9385088178 +36 37 37.648934145       5.9   F8IV 157 0
2 HD 3454 SB* 00 37 56.9908771510 +47 24 27.774425328   8.00 7.53     F5 54 0
3 HD 5750 PM* 00 59 35.8208541581 +32 29 31.605819711       6.7   F5 47 0
4 HD 6834 * 01 09 35.2624358051 +39 46 51.768219338   8.83 8.41     F2 48 0
5 HD 6840 ** 01 10 50.7349489913 +67 46 48.447799434       6.2   G0 74 0
6 HD 10307 SB* 01 41 47.1431421954 +42 36 48.443521767 5.69 5.58 4.96 4.43 4.10 G1V 476 0
7 HD 11007 PM* 01 48 41.5625031083 +32 41 24.751552139   6.34   5.4   F8V 116 0
8 HD 11592 PM* 01 53 57.6822151003 +10 36 50.495630079   7.24   6.5   F6 80 0
9 * iot Per PM* 03 09 04.0198629 +49 36 47.799638 4.76 4.64   3.7   G0V 517 0
10 * 10 Tau PM* 03 36 52.1448022536 +00 23 58.536917738 5.23 5.15 4.30 4.09 3.77 F9IV-V 537 0
11 HD 24421 PM* 03 55 37.0793465692 +52 13 36.554626062 9.036 7.30   6.5   F8VmF1 65 0
12 HD 25457 TT* 04 02 36.7451443573 -00 16 08.118566607   5.88 5.38     F7V 248 0
13 HD 25173 PM* 04 07 24.0241870896 +75 10 30.157694448   7.70   6.9   F8V 61 0
14 * 50 Per RS* 04 08 36.6168168411 +38 02 23.055834828 7.78 5.97   5.2   F8V 210 0
15 HD 33632 PM* 05 13 17.4475043132 +37 20 14.323451459   6.98   6.2   F8V 78 0
16 * lam Aur PM* 05 19 08.4754630747 +40 05 56.589643877 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 502 0
17 * 111 Tau BY* 05 24 25.4629773342 +17 23 00.729080928   5.52   4.7   F8V 322 0
18 * chi01 Ori RS* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 815 0
19 HD 39833 PM* 05 55 01.9579678203 -00 30 28.693511598   8.28 7.66     G3V 89 0
20 HD 41640 PM* 06 07 09.2242167671 +16 33 21.892862244   7.85 7.35     F5 51 0
21 HD 43947 * 06 19 40.1735411907 +16 00 47.694982195   7.16 6.62     F8V 118 0
22 HD 46317 PM* 06 36 15.1326869891 +58 06 24.418429941       6.3   F5 43 0
23 HD 49732 PM* 06 51 50.8950773887 +41 34 34.723973764   8.26 7.85     F8 41 0
24 HD 54717 PM* 07 11 19.4839240936 +33 06 42.714346466   7.59 7.16     F5 41 0
25 HD 55575 PM* 07 15 50.1392154188 +47 14 23.875808075 6.19 6.16   5.2   F9V 280 0
26 HD 58551 PM* 07 26 50.2564112797 +21 32 08.348615001   7.00   6.3   F6V 125 0
27 HD 59380 SB* 07 29 25.6609863875 -07 33 04.450065996   6.327 5.853     F6V 89 0
28 * 22 Lyn PM* 07 29 55.9568245403 +49 40 20.861583932   5.802 5.357     F6V 128 0
29 HD 59984 PM* 07 32 05.7631181661 -08 52 52.773345653   6.431 5.916     G0VFe-1.6CH-0.5 197 0
30 HD 60319 PM* 07 34 35.1080318077 +16 54 04.031855106   9.46   8.6   F8 90 0
31 HD 62301 PM* 07 44 56.1933366656 +39 33 22.916336799 7.220 7.270   6.4   F8V 127 0
32 HD 63333 PM* 07 49 18.8519496646 +24 29 19.420370350 7.550 7.580 7.100     F5 55 0
33 * 18 Pup PM* 08 10 39.8257869468 -13 47 57.138604864   6.03 5.54     F6.5V 138 0
34 * chi Cnc PM* 08 20 03.8606964664 +27 13 03.746404123   5.61   4.8   F6V 289 0
35 HD 72945 SB* 08 35 50.9773580356 +06 37 12.780931161 6.55     5.6   F8V 116 0
36 * 5 LMi PM* 08 50 32.2225492041 +33 17 06.200101841   6.738 6.210     F7Vs 151 0
37 * 75 Cnc SB* 09 08 47.3331192407 +26 37 44.803848928   6.64   5.5   G5IV-V 131 0
38 * c UMa SB* 09 14 20.5373862843 +61 25 23.953809117   5.71 5.20     G0V 160 0
39 * 83 Cnc PM* 09 18 58.8570535656 +17 42 18.952268371 7.05 7.11 6.64 6.18 5.89 F5 97 0
40 * 39 Leo PM* 10 17 14.5381705392 +23 06 22.387429139 6.27 6.32 5.82 5.34 5.07 F6V 197 0
41 * 36 UMa PM* 10 30 37.5803678549 +55 58 49.936416690       4.5   F8V 307 1
42 HD 91889 PM* 10 36 32.3819362122 -12 13 48.440040258   6.22 5.70     F8V 168 0
43 HD 94280 PM* 10 52 48.9439739737 -06 49 19.174520114   7.73 7.17     G0/1V 55 0
44 * 47 UMa PM* 10 59 27.9738644892 +40 25 48.922388918   5.66   4.7   G1-VFe-0.5 735 1
45 HD 97916 SB* 11 15 54.2294079228 +02 05 11.982106821 9.50 9.61   8.9   F0V 162 0
46 * 88 Leo ** 11 31 44.9446108040 +14 21 52.213131158   6.77   5.9   F9.5V 180 0
47 HD 100446 PM* 11 34 07.0632277654 +65 14 33.120853594       7.0   F8 59 0
48 * 89 Leo PM* 11 34 21.9486240573 +03 03 36.593145498   6.23   5.5   F5.5V 147 0
49 HD 101676 PM* 11 42 03.9620310054 +12 17 05.691153155 7.510 7.550 7.080     F6V 50 0
50 HD 106516 SB* 12 15 10.55731 -10 18 44.6354 6.44 6.57 6.11     F9VFe-1.7CH-0.7 397 0
51 HD 108510 PM* 12 27 55.4886304951 -08 40 40.784329085   7.33 6.74     G1V_Fe-0.7 65 0
52 HD 109303 PM* 12 33 19.0294958847 +49 18 06.828291398   8.65 8.15     F8 53 0
53 * bet Com PM* 13 11 52.3937856 +27 52 41.453553 4.92 4.84 4.25 3.77 3.47 F9.5V 861 0
54 * e Vir PM* 13 16 46.5161591991 +09 25 26.967205938   5.81   4.8   G0V 520 1
55 HD 118244 SB* 13 35 11.4462203053 +22 29 59.304035796   7.34   6.7   F5V 70 0
56 HD 121560 PM* 13 55 49.9935929209 +14 03 23.410983657   6.66   5.9   F6V 128 0
57 HD 124244 PM* 14 12 17.1123582493 +08 24 25.114747971   9.12 8.45     G5 44 0
58 HD 128385 PM* 14 33 35.5447711541 +65 23 43.548748157 7.090 7.100 6.610     F5 48 0
59 HD 130948 BY* 14 50 15.8107686483 +23 54 42.633203114   6.456 5.867     F9IV-V 258 0
60 HD 132254 PM* 14 56 23.0406690689 +49 37 42.416350556   6.13   5.3   F8-V 129 0
61 HD 139457 PM* 15 37 59.2139776030 +10 14 23.558934538 7.580 7.620   6.8   F6 86 0
62 * chi Her PM* 15 52 40.5411372117 +42 27 05.451105113 5.19 5.19 4.62 4.14 3.82 F8VFe-2Hdel-1 487 0
63 * gam Ser PM* 15 56 27.1826948 +15 39 41.820500 4.31 4.34 3.84 3.37 3.13 F6V 539 0
64 HD 146099 PM* 16 12 43.1555923884 +43 38 58.503790153   8.64 8.13     F8 36 0
65 HD 149750 PM* 16 35 14.6428926111 +37 01 19.664888793   9.21 8.56     G0V 49 0
66 V* V2213 Oph BY* 17 05 16.8186294192 +00 42 09.217571716   6.59   5.6   F8.5IV-V 324 0
67 HD 157466 PM* 17 22 27.6461103752 +24 52 45.934455673       6.6   F8V 115 0
68 HD 157347 PM* 17 22 51.2877095327 -02 23 17.439826176   6.965 6.278     G3V 174 0
69 * psi01 Dra B PM* 17 41 58.1041581273 +72 09 24.836647212   6.04 5.53 5.2   F8V 138 0
70 HD 167588 PM* 18 14 43.9998279363 +29 12 26.302505913   7.10   6.2   F8V 77 0
71 HD 168009 PM* 18 15 32.4634579930 +45 12 33.540002210   6.931 6.298     G1V 194 0
72 * chi Dra SB* 18 21 03.38255 +72 43 58.2518 4.010 4.070 3.580 3.14 2.83 F7V 388 1
73 HD 184601 PM* 19 31 44.5700514163 +60 51 51.056072296   8.75 8.28     G0 35 0
74 HD 189340 SB* 19 59 47.2802830338 -09 57 29.634435094   6.46 5.88     F9V 151 0
75 * ksi Cap Pe* 20 12 25.8706277984 -12 37 02.993423848   6.33 5.85     F7VFe-0.5 91 0
76 * 15 Del PM* 20 49 37.7673480167 +12 32 42.456547015   6.421 5.991     F5V 85 0
77 HD 200580 SB* 21 04 07.4073421467 +02 59 40.012308707 7.82 7.85   7.0   F9V 159 0
78 HD 201891 PM* 21 11 59.0322335571 +17 43 39.888647667 7.74 7.88 7.37 6.91 6.59 G5V_Fe-2.5 374 0
79 HD 204306 * 21 26 25.7542112643 +43 07 09.821887535   8.81 8.31     F5 40 0
80 HD 204363 * 21 28 13.9468321183 -11 34 05.839048582   7.10 6.62     F9VFe-1.3CH-0.7 52 0
81 * 42 Cap RS* 21 41 32.8593786524 -14 02 51.419701067 6.03 5.83 5.18     G2IV 176 0
82 V* HN Peg BY* 21 44 31.3299733695 +14 46 18.982331039       6.16   G0V+ 471 0
83 HD 209942 PM* 21 58 12.7853754748 +82 52 10.782472154   7.43 6.98     F6IV-V 73 1
84 HD 208906 PM* 21 58 40.8319509283 +29 48 45.457435407 7.35 7.47 6.96 6.53 6.22 G0VmF2 166 0
85 * iot Peg SB* 22 07 00.6620572743 +25 20 42.376138495 4.190 4.200 3.770 3.36 3.11 F5V 430 1
86 HD 210752 PM* 22 12 43.53757 -06 28 08.1198   7.92 7.40     G1V 111 0
87 HD 212029 SB* 22 20 23.8650976244 +46 25 05.823238138       8.2   G0 49 0
88 HD 215257 PM* 22 43 50.7183139841 +03 53 12.629544211   7.93   7.1   F5V 142 0
89 HD 219623 PM* 23 16 42.3028134294 +53 12 48.514282990   6.06   5.2   F8V 169 0

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2021.11.30-07:01:43

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