2013A&A...558A.106M

Query : 2013A&A...558A.106M

2013A&A...558A.106M - Astronomy and Astrophysics, volume 558A106-106 (2013/10-1)

New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity.

MORTIER A., SANTOS N.C., SOUSA S.G., FERNANDES J.M., ADIBEKYAN V.Zh., DELGADO MENA E., MONTALTO M. and ISRAELIAN G.

Abstract (from CDS):

Precise stellar parameters are crucial in exoplanet research for correctly determining the planetary parameters. For stars hosting a transiting planet, determining the planetary mass and radius depends on the stellar mass and radius, which in turn depend on the atmospheric stellar parameters. Different methods can provide different results, which leads to different planet characteristics. In this paper, we use a uniform method to spectroscopically derive stellar atmospheric parameters, chemical abundances, stellar masses, and stellar radii for a sample of 90 transit hosts. Surface gravities are also derived photometrically using the stellar density as derived from the light curve. We study the effect of using these different surface gravities on the determination of the chemical abundances and the stellar mass and radius. A spectroscopic analysis based on Kurucz models in local thermodynamical equilibrium was performed through the MOOG code to derive the atmospheric parameters and the chemical abundances. The photometric surface gravity was determined through isochrone fitting and the use of the stellar density, directly determined from the light curve. Stellar masses and radii are determined through calibration formulae. Spectroscopic and photometric surface gravities differ, but this has very little effect on the precise determination of the stellar mass in our spectroscopic analysis. The stellar radius, and hence the planetary radius, is most affected by the surface gravity discrepancies. For the chemical abundances, the difference is, as expected, only noticable for the abundances derived from analyzing lines of ionized species.

Abstract Copyright: ∼

Journal keyword(s): stars: fundamental parameters - stars: abundances - planets and satellites: fundamental parameters - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/A+A/558/A106): table5.dat>

Simbad objects: 91

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Number of rows : 91
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 WASP-32 * 00 15 50.8077262344 +01 12 01.588900896   12.06 11.26 11.63 10.89 ~ 57 1
2 WASP-26 * 00 18 24.7008060816 -15 16 02.275778784   11.62 11.30 10.99 10.46 G0 66 1
3 WASP-1 V* 00 20 40.0745768856 +31 59 23.954809596   12.06 11.31     F7V 136 1
4 WASP-45 PM* 00 20 56.9941303416 -35 59 53.746646676   13.33 11.80 12.20   ~ 43 1
5 HD 10069 SB* 01 37 25.0332798696 -45 40 40.374717456   9.74 9.30     F6IV/V 260 1
6 BD+00 316 Em* 01 57 03.2039481048 +00 45 31.875052896   11.35 10.56     G2 51 1
7 BD-07 436A PM* 02 28 37.2277668480 -07 03 38.376446076   11.07 10.29     G8 77 1
8 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 195 2
9 WASP-50 * 02 54 45.1341750384 -10 53 53.025224640   12.43 11.44 11.599   G9V 62 1
10 WASP-11 ** 03 09 28.5433589520 +30 40 24.862993356   12.58 11.57 11.42   K3V 96 1
11 WASP-22 * 03 31 16.3267124400 -23 49 10.840600632   12.38 11.99 11.41   G 78 1
12 WASP-78 * 04 15 01.5042985272 -22 06 59.103350532   12.65 11.96 12.43 11.65 F8 56 1
13 CD-30 1812 * 04 25 29.0166589296 -30 36 01.610731368   10.45 10.04     F5 72 1
14 BD-06 1077 * 05 04 19.6323194352 -06 13 47.378185788   11.55 10.94     ~ 56 1
15 CPD-64 484 * 05 48 33.5933253192 -63 59 18.388382028   10.73 10.21 9.93 9.742 ~ 89 1
16 CD-38 2551 * 06 17 20.7484979472 -38 19 23.754062640   11.74 11.15     G8 49 1
17 WASP-12 * 06 30 32.7966092352 +29 40 20.263502460   12.14 11.57     G0V 358 1
18 CoRoT-12 * 06 43 03.7630314144 -01 17 47.144066352   16.343 15.515     G2V 38 1
19 CoRoT-7 * 06 43 49.4690164104 -01 03 46.826642700   12.78 11.73 11.36 10.87 K0V 232 1
20 WASP-23 PM* 06 44 30.6133625784 -42 45 42.666796404   13.42 12.52 12.31   ~ 62 1
21 CoRoT-5 EB* 06 45 06.5406550272 +00 48 54.905787036   14.67 14.018 13.82 13.29 F9V 54 1
22 CoRoT-1 * 06 48 19.1723766840 -03 06 07.710745140     13.6 13.44 12.88 G0V 142 2
23 CoRoT-4 * 06 48 46.7134456728 -00 40 21.969631416       13.42   F0V 81 1
24 HAT-P-20 PM* 07 27 39.9488720808 +24 20 11.516231112   12.58 11.35 11.00   K3V 94 1
25 BD+50 1471 PM* 07 48 06.4723053776 +50 13 32.920598923   12.002 11.138 10.669 10.243 G9V 203 1
26 HAT-P-35 * 08 13 00.1784913648 +04 47 13.416267948   12.84 11.59 12.38   ~ 42 1
27 BD+06 1909 Em* 08 15 47.9802408792 +05 50 12.350816484   10.95 10.35     F7 85 1
28 WASP-36 Em* 08 46 19.2977439552 -08 01 37.015743396   13.1 12.7   12.05 G2 75 1
29 BD+34 1976 V* 09 20 24.7145388600 +33 52 56.696039796   11.21 10.42     G1V 94 1
30 HD 80606 PM* 09 22 37.5768032712 +50 36 13.435326684   9.78 9.00     G8V 366 2
31 WASP-19 * 09 53 40.0765648584 -45 39 33.057187596   13.05 12.31 12.12 11.35 G8V 207 2
32 WASP-66 * 10 32 53.9927754048 -34 59 23.457552792   12.00 11.60     F4 39 1
33 OGLE-TR 211 * 10 40 14.3828284632 -62 27 20.018236464       15.24   ~ 39 1
34 OGLE-TR 132 V* 10 50 34.5943868112 -61 57 26.138690064         15.72 F 99 1
35 OGLE-TR 113 SB* 10 52 24.2810533560 -61 26 48.845675976     16.08 15.407 14.42 K 119 1
36 OGLE-TR 111 V* 10 53 17.8069115424 -61 24 20.607791112     16.96 16.05 15.55 G 94 1
37 CD-23 9677 PM* 11 01 35.8978277184 -23 51 38.386984896   11.05 10.28 10.21 9.66 ~ 75 1
38 OGLE-TR 182 * 11 09 18.7248783144 -61 05 42.962710884     16.84 16.37   ~ 39 1
39 HD 97658 PM* 11 14 33.1612754184 +25 42 37.390358520 9.049 8.569 7.714 7.259 6.835 K1V 222 1
40 WASP-31 * 11 17 45.3578677224 -19 03 17.217631800   12.01 11.66 11.98   F: 87 1
41 WASP-56 * 12 13 27.8908484520 +23 03 20.427638472   12.72 11.48 10.7 11.388 G6 37 1
42 CD-29 9873 * 12 42 28.4949559632 -30 38 23.529045948   12.36 11.63 11.39 10.78 G8V 76 1
43 WASP-42 PM* 12 51 55.5581398320 -42 04 25.096306584           ~ 39 1
44 WASP-25 * 13 01 26.3760406392 -27 31 19.922387484   12.27 11.87 11.82 11.08 G4 71 1
45 WASP-55 * 13 35 01.9537865424 -17 30 12.527623872   12.69 11.75     G1 74 1
46 BD+00 3088 * 13 41 49.0301166312 -00 07 41.032748568   11.01 10.41 10.0 9.773 F8 52 1
47 CD-31 10766 * 13 55 42.7120177608 -32 09 34.616222028   11.396 10.910     F7 89 1
48 HAT-P-26 PM* 14 12 37.5331103311 +04 03 36.116569918   12.33 11.76 11.56   K1 81 1
49 WASP-16 * 14 18 43.9225013904 -20 16 31.843626168   12.51 11.29 11.00 10.49 G3V 88 1
50 HAT-P-27 * 14 51 04.1870399712 +05 56 50.548526376   13.18 12.19 11.98 11.23 G8 71 1
51 WASP-24 * 15 08 51.7367171808 +02 20 35.962165104   12.00 11.22 11.43   F8-9 71 1
52 BD+36 2593 Em* 15 19 57.9203617176 +36 13 46.738078788   11.83 11.12     F 129 1
53 CD-27 10695 * 15 59 50.9491505016 -28 03 42.312819096   11.83 11.59 11.31 10.92 F4 141 1
54 BD+28 2507 V* 16 02 11.8462322592 +28 10 10.420201452   11.88 11.25     G1V 118 1
55 HD 146389 PM* 16 15 50.3653280520 +10 01 57.284258556   9.866 9.39 9.22   F8 70 1
56 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 267 1
57 OGLE-TR 10 EB* 17 51 28.2593510544 -29 52 35.231024064     15.780 16.193 14.92 G2V 94 1
58 TrES-3 Pl 17 52 07.0184259768 +37 32 46.237377840           ~ 245 2
59 TOI-2124b Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 228 2
60 OGLE-TR 56 SB* 17 56 35.5016678064 -29 32 21.479240220     16.560 16.07 15.30 ~ 174 1
61 CoRoT-9 * 18 43 08.8100358120 +06 12 14.913236808   14.57 13.46 13.75   G3V 56 1
62 Kepler-43 EB* 19 00 57.8034040200 +46 40 05.665887660   13.8   14.16   G0 105 1
63 NAME V672 Lyr b Pl 19 04 09.8515616256 +36 37 57.446680296           ~ 354 1
64 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
65 HD 179070 Er* 19 09 26.8349590368 +38 42 50.455534860   8.767 8.25 8.00   F6IV 200 1
66 CoRoT-10 V* 19 24 15.2869439208 +00 44 46.002641280   16.676 15.216 15.48 13.64 K1V 46 1
67 CoRoT-8 * 19 26 21.2425572360 +01 25 35.177500524   16.096 14.797 14.267 13.26 K1V 40 1
68 CoRoT-2 * 19 27 06.4944378024 +01 23 01.359897468   13.422 12.568 12.204 11.49 G7V+K9V 267 2
69 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 343 1
70 WASP-67 * 19 42 58.5218345280 -19 56 58.521259680   12.90 12.54     K0V 39 1
71 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 359 1
72 Kepler-17 Ro* 19 53 34.8643397568 +47 48 54.049530564   14.6   13.6   G5V 175 1
73 Kepler-44 Er* 20 00 24.5656977240 +45 45 43.762595112   14.7   14.781   ~ 60 1
74 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
75 WASP-2 V* 20 30 54.1282355304 +06 25 46.341284844   13 11.98     K1.5 157 1
76 HD 197286 PM* 20 44 10.2208462488 -39 13 30.855881604   9.98 9.50     F5V 91 1
77 HAT-P-17 PM* 21 38 08.7310010424 +30 29 19.446386748   11.33 10.38 10.24   G0 85 1
78 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1193 1
79 WASP-47 * 22 04 48.7261549272 -12 01 07.998743676     11.99 11.82   ~ 217 1
80 BD+34 4779 PM* 22 52 09.8636387352 +35 26 49.608422844   10.77 10.36 10.15   F8V 91 1
81 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 744 1
82 BD+37 4734B PM* 22 57 46.8442481880 +38 40 30.358351704   10.82 9.87     G0V 189 1
83 WASP-21 * 23 09 58.2534443016 +18 23 45.885822792   12.12 11.55 11.52   G3V 71 1
84 WASP-6 * 23 12 37.7368282608 -22 40 26.273805024   12.90 11.91     G8V 112 1
85 WASP-10 V* 23 15 58.3006181424 +31 27 46.296056268   12.4   12.03   K5V 100 1
86 WASP-4 PM* 23 34 15.0857248317 -42 03 41.047972591   13.51 12.48 11.9   G7V 196 1
87 WASP-28 * 23 34 27.8814904872 -01 34 48.110067912   12.61     11.47 F8-G0 54 1
88 BD+41 4831 * 23 39 05.8102996968 +42 27 57.505293900   10.88 10.47     F8V 98 1
89 CD-40 15273 PM* 23 51 31.0839097560 -39 54 24.258188484   12.15 11.33 10.896 10.10 K4V 82 1
90 WASP-5 * 23 57 23.7564672192 -41 16 37.743700800   12.808 12.146 12.058 11.44 G4V 132 1
91 CD-35 16019 PM* 23 59 36.0711872328 -35 01 52.923618408   10.49 9.87 9.91   G6 139 0

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