2014A&A...564A.133J


Query : 2014A&A...564A.133J

2014A&A...564A.133J - Astronomy and Astrophysics, volume 564A, 133-133 (2014/4-1)

Gaia FGK benchmark stars: Metallicity.

JOFRE P., HEITER U., SOUBIRAN C., BLANCO-CUARESMA S., WORLEY C.C., PANCINO E., CANTAT-GAUDIN T., MAGRINI L., BERGEMANN M., GONZALEZ HERNANDEZ J.I., HILL V., LARDO C., DE LAVERNY P., LIND K., MASSERON T., MONTES D., MUCCIARELLI A., NORDLANDER T., RECIO BLANCO A., SOBECK J., SORDO R., SOUSA S.G., TABERNERO H., VALLENARI A. and VAN ECK S.

Abstract (from CDS):

To calibrate automatic pipelines that determine atmospheric parameters of stars, one needs a sample of stars, or ``benchmark stars'', with well-defined parameters to be used as a reference. We provide detailed documentation of the iron abundance determination of the 34 FGK-type benchmark stars that are selected to be the pillars for calibration of the one billion Gaia stars. They cover a wide range of temperatures, surface gravities, and metallicities. Up to seven different methods were used to analyze an observed spectral library of high resolutions and high signal-to-noise ratios. The metallicity was determined by assuming a value of effective temperature and surface gravity obtained from fundamental relations; that is, these parameters were known a priori and independently from the spectra. We present a set of metallicity values obtained in a homogeneous way for our sample of benchmark stars. In addition to this value, we provide detailed documentation of the associated uncertainties. Finally, we report a value of the metallicity of the cool giant {psi} Phe for the first time.

Abstract Copyright:

Journal keyword(s): standards - techniques: spectroscopic - surveys - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/A+A/564/A133): stars.dat table6.dat ew.dat abund.dat files/*>

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 592 0
2 * mu. Cas SB* 01 08 16.3029454473 +54 55 12.561201263 5.93 5.86 5.17 4.55 4.13 G5Vb 571 1
3 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1254 1
4 * psi Phe LP* 01 53 38.7393120868 -46 18 09.609378142 7.71 6.00 4.41 2.68 1.17 M4III 108 0
5 NGC 1039 OpC 02 42 07.4 +42 43 19           ~ 430 0
6 * eps For PM* 03 01 37.6288785045 -28 05 29.373792325   6.68 5.85     G9:V 185 0
7 * alf Cet LP? 03 02 16.77307 +04 05 23.0596 6.10 4.17 2.53 1.18 0.02 M1.5IIIa 461 1
8 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 1930 1
9 HD 22879 Pe* 03 40 22.0652879951 -03 13 01.124265616 7.146 7.222 6.667 6.346 6.016 G0VmF2 495 0
10 * del Eri PM* 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 596 0
11 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1255 2
12 HD 49933 PM* 06 50 49.8309774552 -00 32 27.167495244   6.147 5.771 7.04   F3V 379 2
13 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1863 0
14 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1101 2
15 HD 84937 Pe* 09 48 56.0992891997 +13 44 39.326709913 8.49 8.68 8.32 7.97 7.70 F8Vm-5 794 0
16 * mu. Leo PM* 09 52 45.8170136628 +26 00 25.024269924 6.50 5.10 3.88 2.97 2.39 K2IIIbCN1Ca1 446 0
17 * ksi Hya ** 11 33 00.1149306166 -31 51 27.447975478 5.17 4.47 3.54 2.84 2.36 G7IIIb 257 0
18 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 929 0
19 HD 103095 Pe* 11 52 58.7673387755 +37 43 07.254113125 7.38 7.20 6.45 5.80 5.35 K1V_Fe-1.5 800 1
20 * c Vir RG* 12 20 20.9813922197 +03 18 45.255217001 7.27 6.12 4.96 4.07 3.46 K0.5IIIbFe-0.5 360 0
21 * eps Vir PM* 13 02 10.5970152536 +10 57 32.935398266 4.45 3.71 2.79 2.16 1.71 G8III-IIIb 553 0
22 Wolf 1492 Pe* 13 40 02.4921849768 -00 02 18.750053436 11.601 11.832 11.451 11.184 10.892 sdF0: 284 0
23 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 703 0
24 HD 122563 Pe* 14 02 31.8455084952 +09 41 09.944391876 7.47 7.10 6.19 5.37 4.79 G8:III:Fe-5 854 0
25 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2318 1
26 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 1022 2
27 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1279 1
28 HD 140283 Pe* 15 43 03.0971190219 -10 56 00.595693188 7.508 7.711 7.212 6.63 8.21 F9VkA5mA1 936 0
29 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 603 0
30 * bet Ara s*r 17 25 17.9878053183 -55 31 47.574076000 5.87 4.31 2.85     K0/1Ib 127 0
31 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 529 2
32 * gam Sge PM* 19 58 45.4282303572 +19 29 31.726069716 6.97 5.04 3.47 2.27 1.35 M0-III 261 0
33 * 61 Cyg A BY* 21 06 53.9395895022 +38 44 57.902349973 7.50 6.39 5.21 4.19 3.54 K5V 1034 0
34 * 61 Cyg ** 21 06 53.95 +38 44 57.9           ~ 176 0
35 * 61 Cyg B Er* 21 06 55.2638444466 +38 44 31.358519864 8.63 7.40 6.03 4.86 3.55 K7V 721 0
36 * 7 Psc PM* 23 20 20.5830465120 +05 22 52.708387620   6.262 5.069     K1IV 123 0

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