2017MNRAS.467..971B


Query : 2017MNRAS.467..971B

2017MNRAS.467..971B - Mon. Not. R. Astron. Soc., 467, 971-984 (2017/May-1)

ZASPE: a code to measure stellar atmospheric parameters and their covariance from spectra.

BRAHM R., JORDAN A., HARTMAN J. and BAKOS G.

Abstract (from CDS):

We describe the Zonal Atmospheric Stellar Parameters Estimator (ZASPE), a new algorithm, and its associated code, for determining precise stellar atmospheric parameters and their uncertainties from high-resolution echelle spectra of FGK-type stars. ZASPE estimates stellar atmospheric parameters by comparing the observed spectrum against a grid of synthetic spectra only in the most sensitive spectral zones to changes in the atmospheric parameters. Realistic uncertainties in the parameters are computed from the data itself, by taking into account the systematic mismatches between the observed spectrum and the best-fitting synthetic one. The covariances between the parameters are also estimated in the process. ZASPE can in principle use any pre-calculated grid of synthetic spectra, but unbiased grids are required to obtain accurate parameters. We tested the performance of two existing libraries, and we concluded that neither is suitable for computing precise atmospheric parameters. We describe a process to synthesize a new library of synthetic spectra that was found to generate consistent results when compared with parameters obtained with different methods (interferometry, asteroseismology, equivalent widths).

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - techniques: spectroscopic - stars: fundamental parameters - planetary systems - planetary systems

Simbad objects: 56

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Number of rows : 56
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 1461 PM* 00 18 41.8673684261 -08 03 10.805762856   7.14 6.46     G3VFe0.5 331 1
2 HD 4628 PM* 00 48 22.9763438736 +05 16 50.209562003 7.22 6.64 5.74 4.99 4.52 K2.5V 465 0
3 * eta Cas PM* 00 49 06.2907161 +57 48 54.675740 4.04 4.02 3.44 2.94 2.58 F9V 609 0
4 HD 7924 * 01 21 59.1132210377 +76 42 37.037320840   8.018 7.167     K0.5V 123 1
5 HD 16160 PM* 02 36 04.9023844802 +06 53 12.431588708   6.81   5.2   K3V 500 1
6 * tet Per PM* 02 44 11.9870420 +49 13 42.411120 4.62 4.62 4.11 3.67 3.37 F8V 388 0
7 * iot Per PM* 03 09 04.0198629 +49 36 47.799638 4.76 4.64   3.7   G0V 513 0
8 * kap01 Cet BY* 03 19 21.6963205 +03 22 12.715139 5.71 5.52 4.85 4.27 3.91 G5V 836 0
9 * 10 Tau PM* 03 36 52.1448022536 +00 23 58.536917738 5.23 5.15 4.30 4.09 3.77 F9IV-V 536 0
10 * omi02 Eri Er* 04 15 16.3197260 -07 39 10.338087 5.69 5.25 4.43 3.74 3.29 K0V 761 0
11 * pi.03 Ori PM* 04 49 50.4109057 +06 57 40.588294 3.620 3.630 3.190 2.77 2.51 F6V 538 0
12 * lam Aur PM* 05 19 08.4754630747 +40 05 56.589643877 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 500 0
13 HD 33564 PM* 05 22 33.5290089287 +79 13 52.142657543       4.8   F7V 156 1
14 * chi01 Ori RS* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 813 0
15 * tet UMa PM* 09 32 51.4338939 +51 40 38.281102 3.67 3.64 3.18 2.74 2.47 F7V 392 0
16 * 11 LMi RS* 09 35 39.5018053382 +35 48 36.484070234 6.560 6.110 5.340 4.79 4.42 G8Va 351 0
17 * 20 LMi PM* 10 01 00.6567799273 +31 55 25.216848499   6.02   4.9   G3VaHdel1 363 0
18 * 36 UMa PM* 10 30 37.5803678549 +55 58 49.936416690       4.5   F8V 306 1
19 * bet Vir PM* 11 50 41.7182390 +01 45 52.991019 4.26 4.15 3.60 3.13 2.85 F9V 874 0
20 * 11 Com PM* 12 20 43.0255802451 +17 47 34.339258907   5.74 4.74     G8+IIIFe-1 151 1
21 * bet CVn ** 12 33 44.5448195 +41 21 26.924857 4.91 4.86 4.25 3.73 3.42 G0V 553 0
22 * 61 Vir PM* 13 18 24.3142756 -18 18 40.304648 5.710 5.440 4.740     G6.5V 613 1
23 * 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 2193 0
24 BD+22 2716 * 14 33 06.3573673505 +21 53 40.982782397   10.194 9.745     F5V 83 1
25 * ksi Boo BY* 14 51 23.37993 +19 06 01.6994 5.618 5.370 4.593 3.91 3.48 G7Ve+K5Ve 443 0
26 * gam Ser PM* 15 56 27.1826948 +15 39 41.820500 4.31 4.34 3.84 3.37 3.13 F6V 538 0
27 * 14 Her PM* 16 10 24.3152754550 +43 49 03.498734567   7.57   6.1   K0V 419 1
28 * 18 Sco PM* 16 15 37.2703721200 -08 22 09.981989277   6.15 5.50     G2Va 517 0
29 * 12 Oph BY* 16 36 21.4492997704 -02 19 28.512485729 7.00 6.55 5.77 5.13 4.74 K1V 457 0
30 * 70 Oph A SB* 18 05 27.370543 +02 29 59.31669       3.6   K0V 211 0
31 KOI-263 Ro* 18 45 05.7920310207 +47 46 27.920191217   11.57 10.82     G0V 43 0
32 Kepler-128 Ro* 18 49 58.1343934741 +43 58 48.693897585   12.06 11.69     ~ 67 0
33 HD 175289 PM* 18 52 36.1606413704 +45 08 23.343183125   9.95 9.50 9.44   F6IV 86 0
34 BD+44 3020 PM* 18 56 14.3077765754 +44 31 05.389239372   10.45 9.77     G8V 103 1
35 Kepler-95 Ro* 18 57 55.7885359277 +44 23 52.817055529           G5V 67 0
36 HD 176693 Ro* 18 59 08.6846510375 +48 25 23.598982331   9.34 8.83     F8V 105 0
37 Kepler-4 Ro* 19 02 27.6981397378 +50 08 08.703759444           G0 90 1
38 Kepler-10 Ro* 19 02 43.0613892904 +50 14 28.701617339       11.00   G2V 172 1
39 Kepler-25 Ro* 19 06 33.2143323702 +39 29 16.357969502   11.32 10.77 10.598   ~ 123 1
40 HD 179070 Ro* 19 09 26.8351401260 +38 42 50.455094310   8.767 8.25 8.00   F6IV 147 1
41 Kepler-50 Ro* 19 12 24.2129932892 +50 02 01.370843497   11.02 10.54     F5 95 1
42 Kepler-103 Ro* 19 15 56.2939568571 +40 03 52.285835449   12.68 11.88     G5Ib 71 0
43 Kepler-126 Ro* 19 17 23.3506679196 +44 12 30.709880135   10.93 10.51     ~ 65 0
44 KOI-5 EB* 19 18 57.5311661752 +44 38 50.617631589           G2V 60 0
45 BD+41 3306 PM* 19 19 00.5488384064 +41 38 04.581624991 10.01 9.67 8.86 8.18 7.66 K0V 236 0
46 Kepler-109 Ro* 19 21 34.2535503144 +40 17 05.497631861   12.82 12.93     G4V 67 0
47 HATS-9b Pl 19 23 14.4314651167 -20 09 58.849138687           ~ 21 0
48 BD+48 2893 Ro* 19 24 07.7660110490 +49 02 24.928201112   10.73 10.08     G1V 105 1
49 * b Aql PM* 19 24 58.2002406780 +11 56 39.882312617 6.35 5.93   4.7   G7IVHdel1 464 0
50 Kepler-36 Ro* 19 25 00.0430855076 +49 13 54.631289830   12.66 11.94     ~ 184 1
51 Kepler-100 Ro* 19 25 32.6433770205 +41 59 24.944182797   11.86 11.06     ~ 91 0
52 BD+38 3583 Ro* 19 25 40.3886092719 +38 40 20.411344230   10.73 10.00     G5V 83 0
53 BD+46 2726 Ro* 19 34 43.0023412508 +46 51 09.934561072   10.36 9.64     K0V 103 0
54 HATS-35b Pl 19 46 45.1810263545 -63 33 56.137314227           ~ 13 0
55 HD 210702 * 22 11 51.3309245346 +16 02 25.995895221   6.896 5.930     K0III 89 1
56 * iot Psc PM* 23 39 57.0413764 +05 37 34.647529 4.640 4.620 4.120 3.68 3.37 F7V 593 0

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2021.09.19-06:37:08

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