2009MNRAS.394..272S


Query : 2009MNRAS.394..272S

2009MNRAS.394..272S - Mon. Not. R. Astron. Soc., 394, 272-294 (2009/March-3)

Homogeneous studies of transiting extrasolar planets - II. Physical properties.

SOUTHWORTH J.

Abstract (from CDS):

I present an homogeneous determination of the physical properties of 14 transiting extrasolar planetary systems for which good photometric and spectroscopic data are available. The input quantities for each system are the results of the light-curve analyses presented in PaperI, and published measurements of the stellar velocity amplitude, effective temperature and metal abundance. The physical properties are determined by interpolating within tabulated predictions from stellar theory to find the optimal match to these input data. Statistical uncertainties are found using a perturbation algorithm, which gives a detailed error budget for every output quantity. Systematic uncertainties are assessed for each quantity by comparing the values found using several independent sets of stellar models. As a theory-free alternative, physical properties are also calculated using an empirical mass-radius relation constructed from high-precision studies of low-mass eclipsing binary stars.

I find that the properties of the planets depend mostly on parameters measured from the light and radial velocity curves, and have a relatively minor sensitivity to theoretical predictions. In contrast, the orbital semimajor axes and stellar masses have a strong dependence on theoretical predictions, and their systematic uncertainties can be substantially larger than the statistical ones. Using the empirical mass-radius relation instead, the semimajor axes and stellar masses are smaller by up to 15 per cent. Thus, our understanding of extrasolar planets is currently limited by our lack of understanding of low-mass stars.

Using the properties of all known transiting extrasolar planets, I find that correlations between their orbital periods, masses and surface gravities are significant at the 2σ-3σ level. However, the separation of the known planets into two classes according to their Safronov number is weaker than previously found, and may not be statistically significant. Three systems, HAT-P-2, WASP-14 and XO-3, form their own little group of outliers, with eccentric orbits, massive planets and stars with masses ∼1.3M.

The detailed error budgets calculated for each system show where further observations are needed. XO-1 and WASP-1 could do with new transit light curves. TrES-2 and WASP-2 would benefit from more precise stellar temperature and abundance measurements. Velocity measurements of the parent stars are vital for determining the planetary masses: TrES-1, XO-1, WASP-1, WASP-2 and the OGLEs need additional data. The homogeneous analysis presented here is a step towards large-scale statistical studies of transiting extrasolar planetary systems, in preparation for the expected deluge of new detections from CoRoT and Kepler.


Abstract Copyright: © 2009 The Author. Journal compilation © 2009 RAS

Journal keyword(s): binaries: eclipsing - binaries: spectroscopic - planetary systems

Simbad objects: 88

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Number of rows : 88
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 WASP-1 V* 00 20 40.0745768856 +31 59 23.954809596   12.06 11.31     F7V 110 1
2 WASP-1b Pl 00 20 40.0746033057 +31 59 23.953709844           ~ 126 1
3 HD 17156b Pl 02 49 44.4866941172 +71 45 11.632197644           ~ 172 1
4 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 159 2
5 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3226 0
6 BD+57 793b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 200 1
7 BD+57 793 * 04 21 52.7048156328 +57 49 01.889294952   10.27 9.85     F5V 143 2
8 V* V1236 Tau EB* 05 16 28.8123094800 +26 07 38.740749384   19.47 18.1     ~ 26 0
9 CoRoT-1 * 06 48 19.1723766840 -03 06 07.710745140     13.6 13.44 12.88 G0V 116 2
10 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478           ~ 166 1
11 CoRoT-4b Pl 06 48 46.7133639143 -00 40 21.969520601           ~ 61 1
12 CoRoT-4 * 06 48 46.7134456728 -00 40 21.969631416       13.42   F0V 64 1
13 HAT-P-9b Pl 07 20 40.4562402899 +37 08 26.342807726           ~ 58 1
14 HAT-P-9 * 07 20 40.4564614032 +37 08 26.342829060   12.35 12.34 12.08   F 50 1
15 XO-4b Pl 07 21 33.1602110129 +58 16 05.111704885           ~ 60 1
16 XO-4 * 07 21 33.1602434760 +58 16 05.109533364   11.15 10.81     ~ 57 1
17 XO-5 * 07 46 51.9614762400 +39 05 40.460854956     12.1 11.95   G8V 46 1
18 XO-5b Pl 07 46 51.9615004947 +39 05 40.460564688           ~ 48 1
19 BD+50 1471b Pl 07 48 06.4723053776 +50 13 32.920598923           ~ 146 1
20 BD+50 1471 PM* 07 48 06.4723053776 +50 13 32.920598923   12.002 11.138 10.669 10.243 G9V 156 1
21 HD 71636 SB* 08 29 56.3117926560 +37 04 15.482319600   8.30 7.90     F5 43 0
22 NAME OGLE-TR 211b Pl 10 40 14.3825488221 -62 27 20.019051097           ~ 28 1
23 OGLE-TR 211 * 10 40 14.3828284632 -62 27 20.018236464       15.24   ~ 34 1
24 OGLE-TR 132 V* 10 50 34.5943868112 -61 57 26.138690064         15.72 F 95 1
25 NAME OGLE-TR-132b Pl 10 50 34.5945727713 -61 57 26.140283621           ~ 102 1
26 NAME OGLE-TR-113b Pl 10 52 24.2808297652 -61 26 48.845891762           ~ 114 1
27 OGLE-TR 113 SB* 10 52 24.2810533560 -61 26 48.845675976     16.08 15.41 14.42 K 115 1
28 NAME OGLE-TR-111b Pl 10 53 17.8066842748 -61 24 20.606379347           ~ 110 1
29 OGLE-TR 111 V* 10 53 17.8069115424 -61 24 20.607791112     16.96 16.05 15.55 G 92 1
30 NAME OGLE-TR 182b Pl 11 09 18.7248184151 -61 05 42.963716098           ~ 35 1
31 OGLE-TR 182 * 11 09 18.7248783144 -61 05 42.962710884     16.84 16.37   ~ 34 1
32 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 578 1
33 Ross 905b Pl 11 42 11.0933874353 +26 42 23.658083337           ~ 718 1
34 HAT-P-3 * 13 44 22.5937349736 +48 01 43.205733624   12.53 11.86     K1V 75 1
35 HAT-P-3b Pl 13 44 22.5939154049 +48 01 43.206257583           ~ 83 1
36 FBS 1345+796 EB* 13 45 34.8710774664 +79 23 48.290145432     13.363 13.074   M4/5 40 0
37 BD+22 2716 * 14 33 06.3571702344 +21 53 40.981395876   10.194 9.745     F5V 90 1
38 BD+22 2716b Pl 14 33 06.3573673505 +21 53 40.982782397           ~ 148 1
39 BD+36 2593 * 15 19 57.9203617176 +36 13 46.738078788   11.83 11.12     F 97 1
40 BD+36 2593b Pl 15 19 57.9205371377 +36 13 46.737977732           ~ 73 1
41 Lupus-TR 3b Pl 15 30 18.66528 -42 58 41.5308           ~ 19 1
42 Lupus-TR 3 * 15 30 18.6671811840 -42 58 41.663992332   18.68 17.40 17.29 16.62 K1V 8 1
43 BD+28 2507 V* 16 02 11.8462322592 +28 10 10.420201452   11.88 11.25     G1V 98 1
44 BD+28 2507b Pl 16 02 11.8463105423 +28 10 10.419642379           ~ 171 1
45 HD 147506 * 16 20 36.3576063720 +41 02 53.106772488   9.15 8.69     F8V 154 2
46 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 237 1
47 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 326 1
48 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 214 1
49 V* CM Dra BY* 16 34 20.3302660573 +57 09 44.368918696   14.50 12.87 10.85 9.26 M4.5V 425 0
50 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13179 0
51 NAME OGLE-TR-10b Pl 17 51 28.2589927588 -29 52 35.232998832           ~ 86 1
52 OGLE-TR 10 EB* 17 51 28.2593510544 -29 52 35.231024064     15.780 16.193 14.92 G2V 87 1
53 1SWASP J175207.01+373246.3 V* 17 52 07.0184259768 +37 32 46.237377840   13.114 12.402 12.06 11.603 G 67 1
54 TrES-3 Pl 17 52 07.0185036683 +37 32 46.237002085           ~ 215 2
55 TYC 2620-648-1 * 17 53 13.0489562760 +37 12 42.586493328   12.112 11.592     F8 44 2
56 TrES-4 Pl 17 53 13.0490781575 +37 12 42.586106196           ~ 194 2
57 NAME OGLE-TR-56b Pl 17 56 35.5015759807 -29 32 21.476706712           ~ 197 1
58 OGLE-TR 56 EB* 17 56 35.5016678064 -29 32 21.479240220     16.560 16.07 15.30 ~ 165 1
59 HAT-P-5 * 18 17 37.3126923960 +36 37 17.170401468   12.92 11.95     G1V 60 1
60 HAT-P-5b Pl 18 17 37.3127577964 +36 37 17.168584830           ~ 59 1
61 BD+35 3293 V* 18 34 31.6252443960 +35 39 41.491899468   11.07 10.63 10.52   F7V 119 1
62 BD+35 3293b Pl 18 34 31.6255913635 +35 39 41.489193276           ~ 108 1
63 V* V672 Lyr V* 19 04 09.8515616256 +36 37 57.446680296   12.35 11.42     K0V 104 1
64 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 321 1
65 Kepler-1 Er* 19 07 14.0375836512 +49 18 59.091482160   11.85 11.25     G0V 163 2
66 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 305 2
67 CoRoT-2 * 19 27 06.4944378024 +01 23 01.359897468   13.422 12.568 12.204 11.49 G7V+K9V 231 2
68 CoRoT-2b Pl 19 27 06.4944821296 +01 23 01.357597206           ~ 215 1
69 BD+47 2846b Pl 19 28 59.3538131541 +47 58 10.216250846           ~ 336 1
70 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 283 2
71 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 814 1
72 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1288 1
73 WASP-2b Pl 20 30 54.1279218812 +06 25 46.338261893           ~ 97 1
74 WASP-2 V* 20 30 54.1282355304 +06 25 46.341284844   13 11.98     K1.5 128 1
75 HD 197286b Pl 20 44 10.2207500229 -39 13 30.859306335           ~ 58 1
76 HD 197286 PM* 20 44 10.2208462488 -39 13 30.855881604   9.98 9.50     F5V 72 1
77 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1058 1
78 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1705 1
79 BD+37 4734B PM* 22 57 46.8442481880 +38 40 30.358351704   10.82 9.87     G0V 153 1
80 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 225 1
81 WASP-10b Pl 23 15 58.3005497925 +31 27 46.294728182           ~ 102 1
82 WASP-10 V* 23 15 58.3006181424 +31 27 46.296056268   12.4   12.03   K5V 82 1
83 WASP-4 PM* 23 34 15.0857248317 -42 03 41.047972591   13.51 12.48 11.9   G7V 154 1
84 WASP-4b Pl 23 34 15.0857248317 -42 03 41.047972591           ~ 150 1
85 BD+41 4831b Pl 23 39 05.8101319829 +42 27 57.503480354           ~ 79 1
86 BD+41 4831 * 23 39 05.8102996968 +42 27 57.505293900   10.88 10.47     F8V 77 1
87 WASP-5 V* 23 57 23.7564672192 -41 16 37.743700800   12.808 12.146 12.058 11.44 G4V 107 1
88 WASP-5b Pl 23 57 23.7565609528 -41 16 37.745589460           ~ 86 1

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2022.09.26-07:46:04

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