2013MNRAS.431.2419C


Query : 2013MNRAS.431.2419C

2013MNRAS.431.2419C - Mon. Not. R. Astron. Soc., 431, 2419-2432 (2013/May-3)

A large sample of calibration stars for Gaia: log g from Kepler and CoRoT fields.

CREEVEY O.L., THEVENIN F., BASU S., CHAPLIN W.J., BIGOT L., ELSWORTH Y., HUBER D., MONTEIRO M.J.P.F.G. and SERENELLI A.

Abstract (from CDS):

Asteroseismic data can be used to determine stellar surface gravities with precisions of <0.05dex by using the global seismic quantities <Δν> and νmax along with standard atmospheric data such as Teff and metallicity. Surface gravity is also one of the four stellar properties to be derived by automatic analyses for one billion stars from Gaia data (workpackage gsp_phot). In this paper, we explore seismic data from main-sequence F, G, K stars (solar-like stars) observed by the Kepler spacecraft as a potential calibration source for the methods that Gaia will use for object characterization (logg). We calculate logg for some bright nearby stars for which radii and masses are known (e.g. from interferometry or binaries), and using their global seismic quantities in a grid-based method, we determine an asteroseismic logg to within 0.01dex of the direct calculation, thus validating the accuracy of our method. We also find that errors in adopted atmospheric parameters (mainly [Fe/H]) can, however, cause systematic errors of the order of 0.02dex. We then apply our method to a list of 40 stars to deliver precise values of surface gravity, i.e. uncertainties of the order of 0.02dex, and we find agreement with recent literature values. Finally, we explore the typical precision that we expect in a sample of more than 400 Kepler stars which have their global seismic quantities measured. We find a mean uncertainty (precision) of the order of better than 0.02dex in logg over the full explored range 3.8 < logg < 4.6, with the mean value varying only with stellar magnitude (0.01-0.02dex). We study sources of systematic errors in logg and find possible biases of the order of 0.04dex, independent of logg and magnitude, which accounts for errors in the Teff and [Fe/H] measurements, as well as from using a different grid-based method. We conclude that Kepler stars provide a wealth of reliable information that can help to calibrate methods that Gaia will use, in particular, for source characterization with gsp_phot, where excellent precision (small uncertainties) and accuracy in log g is obtained from seismic data.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): asteroseismology - stars: fundamental parameters - stars: solar-type - Galaxy: fundamental parameters

Simbad objects: 47

goto Full paper

goto View the references in ADS

Number of rows : 47
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 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 576 0
2 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1173 1
3 * iot Hor PM* 02 42 33.4666679022 -50 48 01.055138166   5.97 5.40     F8V 366 1
4 * del Eri * 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 574 0
5 HD 49385A PM* 06 48 11.5030769640 +00 18 17.894873196   7.952 7.399 8.28   G0V 83 1
6 HD 49933 PM* 06 50 49.8309774552 -00 32 27.167495244   6.147 5.771 7.04   F3V 361 2
7 HD 52265 PM* 07 00 18.0357115416 -05 22 01.780929120   6.845 6.282     G0V 305 1
8 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1822 0
9 * 171 Pup PM* 07 45 34.9212542040 -34 10 21.185626324   5.909 5.362     F9V 290 0
10 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 894 0
11 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 682 1
12 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 963 1
13 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1206 0
14 HD 139211 PM* 15 39 56.5437010824 -59 54 30.007118052   6.43 5.95     F6IV 80 0
15 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 543 0
16 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 498 2
17 * 70 Oph ** 18 05 27.28518 +02 30 00.3558 5.40 4.89 4.03 3.38 2.92 K0-V 629 0
18 HD 170987 ** 18 32 01.73141 +06 46 48.3563       8.23   F5 42 0
19 HD 173701 PM* 18 44 35.1191008536 +43 49 59.790008892   8.37 7.52     G8V 150 0
20 BD+47 2703 PM* 18 49 33.6586835784 +47 42 39.607192296   10.16 9.54     F9IV-V 40 0
21 TYC 3123-1088-1 PM* 18 54 55.8843889776 +40 46 31.216294848   10.84 10.15     G3V 25 0
22 HD 176693 Ro* 18 59 08.6844743448 +48 25 23.600359776   9.34 8.83     F8V 108 0
23 HD 177153 PM* 19 01 39.6780721176 +41 29 24.328113936   7.76 7.21     G0 99 0
24 BD+42 3247 PM* 19 06 58.3280630808 +42 26 08.260897020   10.32 9.75     G0.5IV 59 0
25 HD 179070 Ro* 19 09 26.8349590368 +38 42 50.455534860   8.767 8.25 8.00   F6IV 152 1
26 BD+39 3706 PM* 19 16 34.9026130056 +40 02 50.359631244       9.1   G1.5V 68 0
27 HD 234856 Ro* 19 17 45.8018919144 +50 28 48.274775580   9.87 9.32     F9IV-V 71 0
28 HD 181207 PM* 19 17 46.3565007888 +41 24 36.838219932   9.06 8.47     F9IV-V 77 0
29 HD 181420 PM* 19 20 27.0720449304 -01 18 35.132869692   6.98 6.55     F6V 84 0
30 BD+43 3221 * 19 20 47.9392965792 +44 09 18.751522032   10.03 9.50     F9IV-V 67 0
31 HD 181906 PM* 19 22 21.3624224688 +00 22 58.628902908   8.11 7.65     F5V 60 0
32 BD+43 3228 PM* 19 23 56.4112114464 +43 18 52.537486464   10.84 10.15     G0V 51 0
33 BD+41 3338 * 19 24 11.1933479232 +42 03 09.726975180   9.97 9.19     G8IV-V 63 0
34 HD 182756 * 19 24 30.3488274144 +40 19 23.671912908   9.01 8.31     G1V 59 0
35 HD 183298 PM* 19 26 22.0906256352 +50 59 14.334181836   8.71 8.16     G0.5IV 89 0
36 TYC 3551-149-1 PM* 19 27 20.4900952416 +48 57 12.010523580   10.59 9.85     G5IV 48 0
37 TYC 3551-1158-1 * 19 29 01.8626404752 +49 51 54.860504292   11.39 10.83     G2V 21 0
38 * tet Cyg PM* 19 36 26.5343563 +50 13 15.964573 4.83 4.86 4.48 4.13 3.92 F3+V 339 1
39 TYC 3135-624-1 PM* 19 36 48.8136243480 +38 42 56.789855496   10.35 9.55     G5IV 66 0
40 BD+44 3197 PM* 19 37 54.5252033200 +44 59 04.630621506       9.3   G0IV 66 0
41 HD 185834 * 19 39 00.6724153968 +46 54 06.984718740   9.26 8.78     F6IV 38 0
42 * 16 Cyg A ** 19 41 48.9534996168 +50 31 30.219536784 6.79 6.59 5.95 5.50 5.17 G1.5Vb 715 1
43 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 839 1
44 HD 187160 SB* 19 46 41.3411982432 +44 20 54.601189476   7.650 7.083     F9IV-V 88 0
45 BD+43 3368 * 19 48 14.2913289840 +43 44 48.961091040   9.63 9.17     F8V 41 0
46 * gam Pav PM* 21 26 26.6049826473 -65 21 58.313057521 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 395 0
47 * tau PsA PM* 22 10 08.7801946925 -32 32 54.270294310   5.40 4.92     F6V 143 0

To bookmark this query, right click on this link: simbad:objects in 2013MNRAS.431.2419C and select 'bookmark this link' or equivalent in the popup menu


2022.07.06-19:09:05

© Université de Strasbourg/CNRS

    • Contact