2014A&A...568A..25N

Query : 2014A&A...568A..25N

2014A&A...568A..25N - Astronomy and Astrophysics, volume 568A25-25 (2014/8-1)

Carbon and oxygen abundances in stellar populations.

NISSEN P.E., CHEN Y.Q., CARIGI L., SCHUSTER W.J. and ZHAO G.

Abstract (from CDS):

Carbon and oxygen abundances in stars are important in many fields of astrophysics including nucleosynthesis, stellar structure, evolution of galaxies, and formation of planetary systems. Still, our knowledge of the abundances of these elements in different stellar populations is uncertain because of difficulties in observing and analyzing atomic and molecular lines of C and O. Abundances of C, O, and Fe are determined for F and G main-sequence stars in the solar neighborhood with metallicities in the range -1.6<[Fe/H]<+0.4 in order to study trends and possible systematic differences in the C/Fe, O/Fe, and C/O ratios for thin- and thick-disk stars as well as high- and low-alpha halo stars. In addition, we investigate if there is any connection between C and O abundances in stellar atmospheres and the occurrence of planets. Carbon abundances are determined from the λλ 5052, 5380 CI lines and oxygen abundances from the λ7774 OI triplet and the forbidden [OI] line at 6300Å. MARCS model atmospheres are applied and non-LTE corrections for the OI triplet are included. Systematic differences between high- and low-alpha halo stars and between thin- and thick-disk stars are seen in the trends of [C/Fe] and [O/Fe]. The two halo populations and thick-disk stars show the same trend of [C/O] versus [O/H], whereas the thin-disk stars are shifted to higher [C/O] values. Furthermore, we find some evidence of higher C/O and C/Fe ratios in stars hosting planets than in stars for which no planets have been detected. The results suggest that C and O in both high- and low-alpha halo stars and in thick-disk stars are made mainly in massive (M > 8 M☉) stars, whereas thin-disk stars have an additional carbon contribution from low-mass AGB and massive stars of high metallicity causing a rising trend of the C/O ratio with increasing metallicity. However, at the highest metallicities investigated ([Fe/H]≃+0.4), C/O does not exceed 0.8, which seems to exclude formation of carbon planets if proto-planetary disks have the same composition as their parent stars.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - stars: atmospheres - planetary systems - Galaxy: disk - Galaxy: halo

VizieR on-line data: <Available at CDS (J/A+A/568/A25): table2.dat table3.dat table4.dat table5.dat>

Simbad objects: 154

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Number of rows : 154
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 1237 PM* 00 16 12.6780107483 -79 51 04.244506480 7.692 7.335 6.578     G8V 262 1
2 BD-03 56 PM* 00 29 26.6605338732 -02 20 57.055990746   11.269 10.648 10.630   ~ 43 0
3 HD 3567 PM* 00 38 31.9473242153 -08 18 33.392826667 9.54 9.70 9.23     F7/8wF3 221 0
4 HD 4208 PM* 00 44 26.6506707202 -26 30 56.455527913   8.46 7.79     G7VFe-1CH-0.5 224 1
5 HD 4308 PM* 00 44 39.2672095011 -65 38 58.277728125 7.31 7.193 6.552     G6VFe-0.9 267 1
6 * 18 Cet PM* 00 45 28.6874352984 -12 52 50.911589280 6.86 6.76 6.15     G0V 254 0
7 CD-61 282 PM* 01 36 05.8495294416 -61 05 03.492150337   10.63 10.10     G0 74 0
8 BD-01 306 PM* 02 14 40.2989460555 -01 12 05.123909214 9.60 9.631 9.066 8.712 8.377 G0 162 0
9 HD 14374 PM* 02 19 16.0361405544 -00 46 47.419257972   9.23 8.48     G8V 99 0
10 BD+32 467 PM* 02 34 13.2132669745 +33 00 05.091152673   11.13   10.2   G0 36 0
11 * 79 Cet PM* 02 35 19.9291748518 -03 33 38.172943076   7.49 6.78     G2V 317 1
12 G 75-31 PM* 02 38 21.5033134703 +02 26 44.370557521   10.968 10.424 10.389   sd?F8 70 0
13 HD 17820 PM* 02 51 58.3551725257 +11 22 11.940361848 8.85 8.92   8.0   G5 123 0
14 G 5-19 PM* 03 11 26.5406862511 +12 37 09.570643728   11.77   11.0   ~ 54 0
15 HD 20782 PM* 03 20 03.5777546706 -28 51 14.660358176   8.03 7.38     G1.5V 240 1
16 Ross 374 PM* 03 26 59.7729638950 +23 46 35.925963580   11.36   10.6   F5 83 0
17 BD+20 571 Pe* 03 27 39.4522217875 +21 02 34.994793492   11.36   10.8   G0 67 0
18 HD 23079 PM* 03 39 43.0959995592 -52 54 57.017412036   7.68 7.11     F9.5V 190 1
19 HD 22879 Pe* 03 40 22.0652879951 -03 13 01.124265616 7.146 7.222 6.667 6.346 6.016 G0VmF2 529 0
20 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
21 HD 25704 ** 04 01 44.6317980946 -57 12 24.598726799   8.65 8.10     F7V 161 0
22 HD 276029 PM* 04 03 55.2569638894 +39 44 19.199783595   11.27   10.3   F8 43 0
23 HD 284248 Pe* 04 14 35.5161858536 +22 21 04.252516252 9.49 9.68 9.23 8.77 8.43 sdG0 200 0
24 BD-06 855 PM* 04 14 58.1068708300 -05 37 48.859008052   11.278 10.601 10.192 9.794 ~ 94 0
25 HD 28185 PM* 04 26 26.3227063776 -10 33 02.947149108   8.52 7.81     G6.5IV-V 210 1
26 HD 30306 PM* 04 39 57.9941894088 -71 30 20.207239452   8.51 7.75     G9V 93 0
27 HD 30177 PM* 04 41 54.3737734560 -58 01 14.727688572   9.18 8.37     G8V 152 1
28 HD 283807 PM* 04 44 42.0610259088 +25 56 09.599948808   10.78   9.7   G0 61 0
29 HD 277559 PM* 05 05 28.7086497622 +40 15 26.368031686   10.08   9.4   F5 65 0
30 HD 241253 PM* 05 09 56.9589768600 +05 33 26.741302308   10.24   9.4   G0 104 0
31 HD 246067 PM* 05 39 27.4342825426 +03 57 02.683945678       9.9   G0 62 0
32 HD 40397 PM* 05 58 21.5359747032 -04 39 02.421639504 7.974 7.715 6.984 6.578 6.183 F7V 147 0
33 HD 250792 Pe* 06 03 14.8636143602 +19 21 38.696218609 9.89 9.898 9.310 8.954 8.547 G1 177 0
34 BD+33 1279a PM* 06 13 49.8286755927 +33 25 02.118887862   11.65   11.1   F8 40 0
35 CD-33 3337 PM* 06 54 47.8101117384 -33 44 49.024262364   9.56 9.03     F5 103 0
36 G 103-69 PM* 06 54 56.2977228912 +35 30 58.636262340   11.55   11.1   sdF2 42 0
37 HD 51754 PM* 06 58 38.5387458343 -00 28 49.696648518 9.60 9.567 9.009 8.663 8.334 G2V 145 0
38 HD 52265 PM* 07 00 18.0357115416 -05 22 01.780929120   6.845 6.282     G0V 356 1
39 CD-57 1633 HV* 07 06 28.9516977109 -57 27 29.118927115   10.04 9.54     F7V 114 0
40 HD 59392 Pe* 07 28 03.2212916981 -38 00 41.278587469   10.17 9.7     F0V 102 0
41 CD-45 3283 PM* 07 34 18.5993129322 -45 16 42.883606401   11.08 10.43     G8V-VI 88 0
42 BD+00 2058A Pe* 07 43 43.9667566029 -00 04 00.973799875   10.653 10.202 9.888 9.578 sdF 91 0
43 BD+00 2058B PM* 07 43 44.0845747828 -00 03 49.307082024   11.741 11.253 10.909 10.593 ~ 60 0
44 HD 65216 PM* 07 53 41.3195697504 -63 38 50.353461420   8.65 7.96     G5V 162 1
45 HD 65907 PM* 07 57 46.9142992394 -60 18 11.058944907 6.17 6.17 5.60     F9.5V 213 0
46 HD 69830 PM* 08 18 23.9469682407 -12 37 55.817187530   6.74 5.95     G8:V 587 1
47 HD 233511 PM* 08 19 22.5714563279 +54 05 09.623339988 10.02 10.24   9.4   F4 149 0
48 V* CS Pyx BY* 08 36 23.0165447400 -30 02 15.446225796   8.84 8.06     G8IV-VFe+0.5 177 1
49 HD 75289 PM* 08 47 40.3893739728 -41 44 12.455319264 7.04 6.94 6.36     F9VFe+0.3 295 1
50 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
51 HD 76932 PM* 08 58 43.9327642391 -16 07 57.817644364 6.47 6.39 5.86     G2VFe-1.8CH-1 426 0
52 HD 77110 PM* 08 59 17.8632329568 -35 18 37.116447876   9.43 8.85     G1V 67 0
53 HD 78538 PM* 09 08 46.9650088176 -05 06 57.916430532   8.82 8.18     G5/6 83 0
54 G 114-42 PM* 09 10 44.8904400192 -03 48 09.630888660   13.281 12.746 12.403 12.052 ~ 50 0
55 G 46-31 SB* 09 17 04.0007462520 +03 01 29.610961464   11.359 10.897 10.704   ~ 72 0
56 HD 82943 PM* 09 34 50.7353072232 -12 07 46.369202196   7.17 6.53     F9VFe+0.5 498 2
57 HD 237822 PM* 09 36 49.5206880772 +57 54 41.015334894   10.59   9.6   G3V 57 0
58 BD+29 1925 SB* 09 38 50.6066348979 +28 24 08.612287954   11.095 10.548 10.448   G5 40 0
59 BD-03 2764 PM* 09 45 37.8300847800 -04 40 28.499674008   11.333 10.849 10.499 10.175 ~ 46 0
60 HD 298986 PM* 10 17 14.8774744591 -52 29 18.694800089   10.46 10.03   9.48 F5 97 0
61 HD 89454 PM* 10 19 16.2817449288 -11 22 42.644765496   8.75 8.05     G5V 92 0
62 Ross 892 PM* 10 27 24.2460060626 +01 24 00.190284079   11.55   10.8   sdF8 76 0
63 HD 92788 PM* 10 42 48.5278074048 -02 11 01.525313004   8.01 7.30     G6V 260 1
64 HD 94151 PM* 10 51 39.2308104936 -22 04 18.583225644   8.54 7.82     G8V 103 0
65 HD 96423 PM* 11 06 19.7446310712 -44 22 23.941868664   7.92 7.23     G5V 125 0
66 CD-43 6810 PM* 11 08 40.0891980744 -44 15 33.814235556   10.38 9.82     F8 78 0
67 HD 97320 Pe* 11 11 00.7344001848 -65 25 37.745815656   9.769 9.269     F3V 158 0
68 BD+36 2165 PM* 11 12 47.9997679646 +35 43 43.885058670 9.98 10.19 9.76 9.34 9.02 G0 143 0
69 G 56-30 PM* 11 21 35.1061968969 +18 11 44.559215421   11.50   10.7   sd?G0 40 0
70 BD+20 2594 PM* 11 23 16.2307856395 +19 53 37.663112839   10.51   9.6   F9 85 0
71 BD+11 2369 PM* 11 32 34.1257455852 +10 54 11.307005592   10.73   9.7   G0 43 0
72 BD+26 2251 PM* 11 44 35.7049511770 +25 32 11.689104807   10.82   9.9   F6 102 0
73 HD 102365 PM* 11 46 31.0725331317 -40 30 01.285867174 5.65 5.55 4.88 4.35 3.97 G2V 378 1
74 BD+51 1696 Pe* 11 46 35.1556060454 +50 52 54.680145444 10.32 10.47   9.5   sdG0 172 0
75 BD-21 3420 PM* 11 55 28.4581009368 -22 23 13.324840296   10.649 10.107     F5 74 0
76 HD 103723 PM* 11 56 36.0251513496 -21 25 09.829610868   10.554 10.091     F5/6V 87 0
77 HD 105004 PM* 12 05 24.8526164337 -26 35 43.750181317   10.96 10.39     F9 117 0
78 HD 106516 SB* 12 15 10.55731 -10 18 44.6354 6.44 6.57 6.11     F9VFe-1.7CH-0.7 443 0
79 HD 108147 PM* 12 25 46.2673666032 -64 01 19.516186956   7.532 6.994     F8/G0V 195 1
80 HD 110668 PM* 12 43 58.3625433936 -35 07 23.195138160   8.95 8.28     G3/5V 62 0
81 HD 111232 PM* 12 48 51.7525624903 -68 25 30.554783455   8.29 7.61     G8VFe-1.0 168 1
82 HD 111980 SB* 12 53 15.0529661499 -18 31 20.013189741 8.80 8.91 8.38     F7V 185 0
83 HD 113679 PM* 13 05 52.8245053407 -38 30 59.990193435   10.342 9.797     G2/3V 114 0
84 HD 114613 PM* 13 12 03.1842958709 -37 48 10.879928463 5.86 5.55 4.85 4.28 3.92 G3V 231 0
85 HD 114762 SB* 13 12 19.7410686234 +17 31 01.630334317 7.78         F9VgF8mF4+M6?V 570 1
86 HD 114729 PM* 13 12 44.2591958183 -31 52 24.055985573   7.31 6.69     G0V 222 1
87 HD 114853 PM* 13 13 52.2256885584 -45 11 08.884868676 7.681 7.583 6.940 6.559 6.226 G1.5V 127 0
88 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
89 G 63-26 Pe* 13 24 30.5997776592 +20 27 22.094791164   12.62 12.18 12.5   sd:F 70 0
90 HD 117207 PM* 13 29 21.1129060560 -35 34 15.587968296   7.98 7.25     G7IV-V 162 1
91 HD 117618 PM* 13 32 25.5556238328 -47 16 16.913213976   7.77 7.17     G0V 144 1
92 G 150-40 PM* 13 48 52.1482901497 +27 40 09.478619610       10.5   sdF9 45 0
93 HD 120559 SB* 13 51 40.3987847839 -57 26 08.350982731 8.679 8.647 7.982 7.605 7.217 G7VFe-1.4CH-1 168 0
94 HD 121004 PM* 13 53 58.1163626566 -46 32 19.522719077   10.112 9.522     G2V 164 0
95 HD 125184 PM* 14 18 00.7266638905 -07 32 32.612570668   7.20 6.50     G5IV 186 0
96 HD 125612 PM* 14 20 53.5176649416 -17 28 53.489705520   8.93 8.32     G3V 147 1
97 HD 126681 PM* 14 27 24.9094012952 -18 24 40.454425566   9.939 9.535     G3V 208 0
98 HD 126525 PM* 14 27 32.9719003174 -51 55 59.106980352   8.529 7.85 7.56 8.31 G4V 127 1
99 HD 128674 PM* 14 40 28.2622927423 -57 01 46.403332204   8.06 7.38     G7V 119 0
100 BD+06 2932 PM* 14 43 17.9691516998 +05 49 39.761109950   11.33 10.51     G6V 120 0
101 HD 132475 PM* 14 59 49.7651173448 -22 00 45.815162806 8.98 9.11 8.55     F5/6V 256 1
102 HD 134664 PM* 15 12 10.3537197864 -30 53 10.652718912   8.40 7.73     G1.5V 115 0
103 * 23 Lib PM* 15 13 28.6669233518 -25 18 33.653388418   7.168 6.46 6.43   G6IV-V 332 1
104 * nu.02 Lup PM* 15 21 48.1499105161 -48 19 03.469906910 6.35 6.30 5.65     G2-V 354 1
105 G 15-23 SB* 15 29 31.6798974496 +06 08 49.881802340   11.67   10.6   ~ 59 0
106 HD 140901 PM* 15 47 29.1010163043 -37 54 58.722921986   6.73 6.01     G7IV 223 0
107 BD+42 2667 Pe* 16 03 13.2988107325 +42 14 46.651500150   10.33   9.6   F5 159 0
108 HD 145666 PM* 16 15 04.1594209552 -56 22 28.351739808   8.361 7.80     G2V 88 1
109 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 671 0
110 HD 148816 PM* 16 30 28.4586254384 +04 10 41.602836534 7.75 7.81 7.28 6.82 6.49 F7V 329 0
111 HD 157347 PM* 17 22 51.2877087336 -02 23 17.439450684   6.965 6.278     G3V 231 0
112 HD 159482 PM* 17 34 43.0816088882 +06 00 51.815208744   8.94 8.36     G0V 171 0
113 BD+18 3423 PM* 17 38 15.6094693200 +18 33 25.483804164 10.17 10.27   9.4   F6V 136 0
114 HD 160693 PM* 17 39 36.8721883235 +37 11 01.504256846 8.94 8.92   8.0   G0 224 0
115 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 578 2
116 BD-08 4501 PM* 17 47 27.9712915686 -08 46 47.733112329   11.18 10.59     sdF8 140 0
117 HD 163810 ** 17 58 38.4538029750 -13 05 49.654844460 10.15 10.23 9.63     G3V 158 0
118 HD 168443 PM* 18 20 03.9332862096 -09 35 44.614653900   7.62 6.92     G6V 334 1
119 HD 169830 * 18 27 49.4849984976 -29 49 00.700831380   6.406 5.902 7.01   F7V 298 1
120 G 21-22 PM* 18 39 09.7158608590 +00 07 14.320687061   11.285 10.775 10.437 10.086 G4 71 0
121 HD 175179 PM* 18 54 23.2029803432 -04 36 18.621907480 9.56 9.61 9.03     G5V 135 0
122 HD 230409 PM* 19 00 43.3339876251 +19 04 28.418294811   10.78   9.6   G0 97 0
123 HD 179626 PM* 19 13 20.7189797919 -00 35 42.325251766   9.701 9.187 8.844 8.489 F5V 136 0
124 HD 179949 BY* 19 15 33.2300695008 -24 10 45.671448072   6.772 6.237     F8V 435 1
125 HD 183263 * 19 28 24.5713671072 +08 21 29.004515424   8.51 7.86     G6IV 149 1
126 HD 189558 PM* 20 01 00.2452184673 -12 15 20.353638621   8.28 7.73     F8/G2V 202 0
127 * del Pav PM* 20 08 43.6088716052 -66 10 55.442769229 4.78 4.32 3.56 2.95 2.61 G8IV 422 0
128 BD+05 4481 PM* 20 20 24.5608644037 +06 01 52.826286539   10.75   10.8   G4 72 0
129 HD 193901 PM* 20 23 35.8471605389 -21 22 14.226959304 9.08 9.22 8.67 8.17 7.87 F7V 298 0
130 HD 194598 PM* 20 26 11.9183775668 +09 27 00.429558608 8.62 8.82 8.34 7.90 7.56 F8 315 0
131 HD 196050 PM* 20 37 51.7098518376 -60 38 04.145969904   8.16 7.49   9.01 G3V 174 1
132 HD 196761 PM* 20 40 11.7551137131 -23 46 25.918619793   7.09 6.37     G7.5IV-V 215 0
133 G 24-25 SB* 20 40 16.1053839864 +00 33 19.651652964       10.2   CEMP-s 57 0
134 HD 199289 PM* 20 58 08.5239126371 -48 12 13.459812756   8.82 8.30     F5V 134 0
135 HD 335471 PM* 21 03 06.1287954464 +29 28 56.213243727       9.7   G5 50 0
136 HD 202206 PM* 21 14 57.7686051936 -20 47 21.161521320   8.79 8.07     G6V 246 1
137 * gam Pav PM* 21 26 26.6049826473 -65 21 58.313057521 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 439 0
138 HD 205650 PM* 21 37 26.0286639804 -27 38 06.697265704   9.59 9.00     F6V 112 0
139 HD 206172 PM* 21 40 27.7576363296 -02 01 03.290633832   9.22 8.55     G6V 84 0
140 BD+26 4251 PM* 21 43 57.1238515464 +27 23 23.989925868       9.9   F6 100 0
141 HD 207129 PM* 21 48 15.7511634187 -47 18 13.017893348   6.18 5.58     G2V 357 0
142 BD+11 4725 SB* 22 05 40.6982164308 +12 22 36.113158501   10.22 9.58 9.502   G3 104 0
143 HD 210277 PM* 22 09 29.8657847411 -07 32 55.162082226   8.85 8.57 7.36   G8V 366 1
144 BD+07 4841 PM* 22 18 36.5059714907 +08 26 44.962089682   10.84   10.1   G0 127 0
145 G 127-26 PM* 22 23 49.0859208600 +24 23 33.136159236       10.2   F9 45 0
146 HD 212301 PM* 22 27 30.9220205424 -77 43 04.526779008   8.31 7.76     F8V 113 1
147 HD 213240 PM* 22 31 00.3663354672 -49 25 59.768968116   7.41 6.80     G0/1V 195 1
148 * tau01 Gru PM* 22 53 37.9323502176 -48 35 53.823928380 6.85 6.66 6.04     G0V 223 1
149 * rho Ind PM* 22 54 39.4819393536 -70 04 25.352060772 6.95 6.71 6.05     G1VFe+0.3 207 1
150 HD 216777 PM* 22 55 49.9773604202 -07 49 21.386964536 8.73 8.65 8.01 7.47 7.10 G6V 168 0
151 HD 216770 PM* 22 55 53.7084389616 -26 39 31.544278128   8.92 8.10     G9VCN+1 152 1
152 HD 219617 ** 23 17 05.04375 -13 51 03.5971 8.41 8.60 8.14 7.70 7.37 F8 317 0
153 HD 222766 PM* 23 43 34.9167361914 -07 55 24.014028099   10.769 10.115 9.728 9.349 G5/6V 91 0
154 HD 222669 PM* 23 43 57.3627337056 -82 30 30.603326148   8.31 7.69     G1V 82 0

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