2004A&A...423..677M

Query : 2004A&A...423..677M

2004A&A...423..677M - Astronomy and Astrophysics, volume 423677-682 (2004/8-4)

On the determination of oxygen abundances in chromospherically active stars.

MOREL T. and MICELA G.

Abstract (from CDS):

We discuss oxygen abundances derived from [OI] λ6300 and the OI triplet in stars spanning a wide range in chromospheric activity level, and show that these two indicators yield increasingly discrepant results with higher chromospheric/coronal activity measures. While the forbidden and permitted lines give fairly consistent results for solar-type disk dwarfs, spuriously high OI triplet abundances are observed in young Hyades and Pleiades stars, as well as in individual components of RS CVn binaries (up to 1.8dex). The distinct behaviour of the [OI]-based abundances which consistently remain near-solar suggests that this phenomenon mostly results from large departures from LTE affecting the OI triplet at high activity level that are currently unaccounted for, but also possibly from a failure to adequately model the atmospheres of K-type stars. These results suggest that some caution should be exercised when interpreting oxygen abundances in active binaries or young open cluster stars.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - stars: activity - line: formation

VizieR on-line data: <Available at CDS (J/A+A/423/677): table2.dat refs.dat>

Simbad objects: 101

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Number of rows : 101
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 * 33 Psc RS* 00 05 20.1411719640 -05 42 27.431698821 6.52 5.65 4.61 3.83 3.29 K0III-IV 223 0
2 * 36 Psc ** 00 16 34.0418564136 +08 14 24.566106696   7.042 6.121     G8II-III 60 0
3 HD 3079 PM* 00 34 29.7115042606 +47 54 55.953793110   7.93 7.38 7.1   F8 90 0
4 * 58 Psc SB* 00 47 01.4560849248 +11 58 25.865643612   6.489 5.504     G8II 76 0
5 * eta Cas PM* 00 49 06.2945942922 +57 48 54.638239716 4.04 4.02 3.44 2.94 2.58 F9V 680 0
6 HD 9562 PM* 01 33 42.8357181696 -07 01 31.238801760 6.61 6.40 5.76     G1V 282 0
7 HD 10307 SB* 01 41 47.1268541099 +42 36 48.221567818 5.69 5.58 4.96 4.43 4.10 G1V 523 0
8 V* UV For RS* 01 46 41.6467823784 -24 00 50.310583488   9.05 8.064   7.022 K0IV 71 0
9 HD 14412 PM* 02 18 58.5047816166 -25 56 44.473793228   7.07 6.34     G8V 249 0
10 HD 17006 PM* 02 42 08.4437861136 -46 31 27.989231952   6.985 6.094     K1III 60 0
11 * iot Hor PM* 02 42 33.4666679022 -50 48 01.055138166   5.97 5.40     F8V 446 1
12 HD 18262 PM* 02 56 13.7672430696 +08 22 53.623894908   6.431 5.963     F6III-IVs 91 0
13 V* EL Eri RS* 03 10 38.5116968160 -05 23 38.019335712   9.29 8.19   6.746 K0III 65 0
14 * 94 Cet PM* 03 12 46.4365677072 -01 11 45.955808988   5.631 5.070     F8.5V 478 1
15 * zet02 Ret ** 03 18 12.8188824117 -62 30 22.904711032   5.814 5.228     G1V 399 0
16 * kap01 Cet BY* 03 19 21.6964175772 +03 22 12.714979884 5.71 5.52 4.85 4.27 3.91 G5V 948 0
17 * 10 Tau PM* 03 36 52.3837044168 +00 24 05.992097829 5.23 5.15 4.30 4.09 3.77 F9IV-V 595 0
18 * del Eri PM* 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 651 0
19 Cl Melotte 22 193 Er* 03 43 50.7027203376 +24 14 50.970564132 12.46 12.10 11.29     G3 83 0
20 V* V847 Tau Er* 03 43 51.7488469023 +24 14 16.175469511 20.566         M4 56 0
21 Cl Melotte 22 250 Y*O 03 44 04.2464661604 +24 59 23.415055928   11.4 10.7     G2 74 0
22 V* V1168 Tau BY* 03 44 04.8395264080 +24 16 31.874754111   12.42 11.54     G4 108 0
23 BD+23 501A TT? 03 44 13.0605044640 +24 01 50.951286804   11.92 11.12 11.25   ~ 82 0
24 2MASS J03451534+2517221 Y*O 03 45 15.3524954712 +25 17 22.129906236   11.8 11.3   10.35 G8V 70 0
25 V* OT Tau Y*O 03 45 29.5743998774 +23 45 37.820500394 15.973 14.611 13.385   11.891 ~ 92 0
26 BD+23 514 Y*O 03 45 41.8552074456 +24 25 53.455915128   12.08 11.36 11.15 10.42 G5 85 0
27 2MASS J03461174+2437203 Y*O 03 46 11.7541432886 +24 37 20.343875204   12.489 11.620     G8V 94 0
28 2MASS J03474811+2313053 Y*O 03 47 48.1174675991 +23 13 05.115153695   11.9 11.2   10.33 G7V 100 0
29 Cl Melotte 22 2126 Y*O 03 49 02.3336482213 +23 15 08.771656641   12.50 11.64   10.80 K0V 88 0
30 V* V1089 Tau BY* 03 49 24.0523828704 +23 50 21.300884088   12.13 11.35     ~ 66 0
31 Cl Melotte 22 2311 Y*O 03 49 28.7425971397 +23 42 43.885888515   12.19 11.36   10.50 ~ 92 0
32 Cl Melotte 22 2462 Y*O 03 49 50.3589700206 +23 42 20.103084756   12.45 11.61 11.44 10.63 ~ 107 0
33 Cl Melotte 22 2880 Y*O 03 50 55.0845587305 +24 11 50.781812049   12.61 11.75     ~ 66 0
34 HD 24194 PM* 03 51 56.8624256040 +23 54 07.044904908   10.61 10.07   9.38 G0V 97 0
35 HD 26491 SB* 04 07 21.6314340169 -64 13 20.468840437 7.13 7.02 6.38     G1V 133 0
36 HD 26736 BY* 04 14 32.3145372576 +23 34 29.798635044   8.711 8.047 7.691 7.356 G5V 245 0
37 HD 26784 PM* 04 14 34.3409896608 +10 42 04.993916796   7.606 7.080 6.791 6.511 F8V 214 0
38 HD 285690 BY* 04 18 19.2717491592 +16 05 17.992962636   10.532 9.548 9.015 8.557 K0 171 0
39 HD 27406 BY* 04 20 12.9666179232 +19 14 00.518450172   8.016 7.444 7.131 6.826 F9V+ 216 0
40 HD 27808 PM* 04 24 14.5737054432 +21 44 10.483946556   7.646 7.125 6.830 6.550 F8V 227 0
41 V* V993 Tau BY* 04 27 35.8912011816 +15 35 21.090336828   7.949 7.404 7.102 6.805 F8V 262 0
42 HD 28237 PM* 04 27 46.0745928288 +11 44 11.108386212   8.066 7.482     F8 179 0
43 HD 28344 BY* 04 28 48.2984108040 +17 17 07.685984400 8.57 8.456 7.837 7.498 7.180 G2V 303 0
44 HD 285773 BY* 04 29 31.6063777896 +17 53 35.460179628 10.28 9.761 8.934 8.486 8.093 K0V 223 0
45 HD 28635 SB* 04 31 29.3493834048 +13 54 12.334345092   8.300 7.746 7.445 7.147 F9V 161 0
46 HD 28992 BY* 04 34 35.3100676992 +15 30 16.642906992   8.530 7.898 7.556 7.226 G1V 234 0
47 HD 29419 PM* 04 38 51.2919739632 +23 08 59.904203964   8.103 7.501     G5V 155 0
48 HD 30562 PM* 04 48 36.3850851388 -05 40 26.557737782   6.40 5.77     G2IV 281 1
49 * lam Aur PM* 05 19 08.4754499121 +40 05 56.585080940 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 567 0
50 * alf Men PM* 06 10 14.4725823672 -74 45 10.958331816   5.798 5.069     G7V 306 0
51 HD 42618 PM* 06 12 00.5668858951 +06 46 59.057784676 7.632 7.496 6.839 6.478 6.143 G4V 214 0
52 HD 45184 PM* 06 24 43.8795895848 -28 46 48.415725948   7.01 6.39 6.24 8.94 G2Va 238 1
53 HD 48938 PM* 06 44 51.9521598096 -27 20 30.001293240   6.99 6.43     G0VFe-0.8CH-0.5 152 0
54 HD 71148 PM* 08 27 36.7846606556 +45 39 10.754559179   6.94   5.9   G1V 208 0
55 V* VX Pyx RS* 08 32 58.5001559256 -34 38 02.540585832   7.318 6.366     G8III 85 0
56 V* IN Vel RS* 09 37 12.9608447520 -42 01 14.490830892   10.26 9.08   7.767 K2IIIp 66 0
57 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 973 0
58 HD 108309 PM* 12 26 48.1417421363 -48 54 47.499505755   6.94 6.26     G2V 179 0
59 V* IS Vir RS* 13 06 26.0092106448 -04 50 45.306856248   9.50 8.432   7.175 K0III 59 1
60 * bet Com PM* 13 11 52.3938268062 +27 52 41.462309460 4.92 4.84 4.25 3.77 3.47 F9.5V 946 0
61 V* V764 Cen RS* 13 36 08.3188135536 -33 28 44.807017116   10.28 8.912   7.612 K3III 48 0
62 V* V851 Cen RS* 13 44 00.9212469648 -61 21 59.173175844   8.74 7.798   6.638 K0III 91 0
63 HD 121560 PM* 13 55 49.9935853152 +14 03 23.407899444   6.66   5.9   F6V 148 0
64 * lam Ser PM* 15 46 26.6142121632 +07 21 11.047378824 5.13 5.03 4.42 3.92 3.60 G0-V 618 0
65 * gam Ser PM* 15 56 27.1826577018 +15 39 41.809580382 4.31 4.34 3.84 3.37 3.13 F6V 586 0
66 HD 144585 PM* 16 07 03.3696573456 -14 04 16.671141984 7.22 6.98 6.32     G2V 211 0
67 HD 147513 PM* 16 24 01.2911377368 -39 11 34.729913940 6.17 6.02 5.376     G5V 389 1
68 * zet TrA SB* 16 28 28.1422653048 -70 05 03.824909916   5.446 4.899     F9V 226 0
69 V* V2213 Oph BY* 17 05 16.8186610814 +00 42 09.221511649   6.59   5.6   F8.5IV-V 352 0
70 HD 154619 * 17 06 13.0482821232 +10 27 13.953941928 7.840 7.270 6.380     G8III-IV 38 0
71 * 41 Oph ** 17 16 36.6861216432 -00 26 43.091198808       6.27   K2III 91 0
72 HD 156365 PM* 17 18 07.1354998272 -24 04 22.881440568   7.27 6.59     G3V 96 0
73 HD 157466 PM* 17 22 27.6459785904 +24 52 45.935235804       6.6   F8V 133 0
74 HD 157347 PM* 17 22 51.2877087336 -02 23 17.439450684   6.965 6.278     G3V 231 0
75 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 578 2
76 HD 172051 ** 18 38 53.4010594968 -21 03 06.750986472   6.518 5.860     G6V 219 1
77 HD 179949 BY* 19 15 33.2300695008 -24 10 45.671448072   6.772 6.237     F8V 435 1
78 V* V4138 Sgr RS* 19 22 40.3015654608 -20 38 34.472405976   7.76 6.74     K2IIICNVp 89 0
79 * b Aql PM* 19 24 58.1999714302 +11 56 39.888480530 6.35 5.93   4.7   G7IVHdel1 522 0
80 V* V4139 Sgr RS* 19 28 05.5712761008 -40 50 04.982000136   9.61 8.445   7.134 K2/3III 49 0
81 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 691 0
82 * 16 Cyg A ** 19 41 48.9534996168 +50 31 30.219536784 6.79 6.59 5.95 5.50 5.17 G1.5Vb 814 0
83 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 949 1
84 * 15 Sge PM* 20 04 06.2207683221 +17 04 12.676556401   6.390 5.788 5.4   G0V 420 0
85 * del Pav PM* 20 08 43.6088716052 -66 10 55.442769229 4.78 4.32 3.56 2.95 2.61 G8IV 422 0
86 HD 193307 PM* 20 21 41.0365243245 -49 59 57.900101995   6.82 6.28     F9V 132 0
87 HD 197214 SB* 20 43 15.9995447169 -29 25 26.058051892 7.778 7.635 6.960 6.583 6.229 G6V 96 0
88 * 11 Aqr PM* 21 00 33.8408325744 -04 43 48.934668864   6.819 6.192     G1V 228 0
89 V* BN Mic RS* 21 14 52.7023490616 -31 11 01.259492244   8.87 7.76   6.662 K1IIIp 55 0
90 V* BH Ind RS* 21 28 19.8820748232 -52 49 14.558513196   10.16 9.12   7.723 K1IIICNIVp 47 0
91 V* AS Cap RS* 21 34 16.5711987408 -13 29 01.488208524   8.75 7.69   6.658 K0IIIp 75 0
92 V* HN Peg BY* 21 44 31.3299461136 +14 46 18.983292600       6.16   G0V+ 561 0
93 HD 210277 PM* 22 09 29.8657847411 -07 32 55.162082226   8.85 8.57 7.36   G8V 366 1
94 * tet Aqr PM* 22 16 50.0366846016 -07 46 59.839473115 5.95 5.15 4.16 3.46 2.98 G9II 147 0
95 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1216 1
96 HD 217107 ** 22 58 15.5408995872 -02 23 43.383234768   6.919 6.163     G8IV-V 398 1
97 V* AZ Psc RS* 22 58 52.9208004120 -00 18 57.378808512   8.44       K0III 57 0
98 HD 217877 PM* 23 03 57.2733595505 -04 47 41.501076410   7.26 6.68     G0-V 143 0
99 * 5 Psc PM* 23 08 40.9095327701 +02 07 40.355833093   6.33 5.43     G6IIIb 103 0
100 * iot Psc PM* 23 39 57.0406036160 +05 37 34.653911951 4.640 4.620 4.120 3.68 3.37 F7V 641 0
101 HD 224022 PM* 23 54 38.6211470319 -40 18 00.221877716   6.60 6.03     G0V 96 0

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