2009ApJ...693..784M


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.17CET23:06:53

2009ApJ...693..784M - Astrophys. J., 693, 784-793 (2009/March-1)

Empirical constraints on Trojan companions and orbital eccentricities in 25 transiting exoplanetary systems.

MADHUSUDHAN N. and WINN J.N.

Abstract (from CDS):

We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planet-star orbit. No companions were detected above 2σ confidence. The median 2σ upper limit is 56 M, and the most constraining limit is 2.8 M for the case of GJ 436. A similar survey using forthcoming data from the Kepler satellite mission, along with the radial-velocity data that will be needed to confirm transit candidates, will be sensitive to 10-50 M Trojan companions in the habitable zones of their parent stars. As a by-product of this study, we present empirical constraints on the eccentricities of the planetary orbits, including those which have previously been assumed to be circular. The limits on eccentricity are of interest for investigations of tidal circularization and for bounding possible systematic errors in the measured planetary radii and the predicted times of secondary eclipses.

Abstract Copyright:

Journal keyword(s): celestial mechanics - planetary systems - techniques: photometric - techniques: radial velocities

Simbad objects: 41

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Number of rows : 41

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 WASP-1 V* 00 20 40.0746033057 +31 59 23.953709844   12.06 11.31     F7V 105 1
2 HD 17156b Pl 02 49 44.4866941172 +71 45 11.632197644           ~ 156 1
3 HD 17156 PM* 02 49 44.4866941172 +71 45 11.632197644   8.78 8.16     G0 144 2
4 XO-3b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 170 1
5 XO-3 * 04 21 52.7044170433 +57 49 01.892074012   10.27 9.85     F5V 129 2
6 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478     13.6     ~ 147 1
7 CoRoT-1 * 06 48 19.1724141241 -03 06 07.710423478     13.6 13.44 12.88 G0V 105 2
8 XO-2 PM* 07 48 06.4726006390 +50 13 32.921121328   12.002 11.138 10.669 10.243 G9V 139 1
9 2MASS J10401438-6227201 * 10 40 14.39 -62 27 20.2         14.36 ~ 33 1
10 V* V742 Car EP* 10 50 34.72 -61 57 25.9         15.72 F 93 1
11 V* V752 Car SB* 10 52 24.2808297652 -61 26 48.845891762     16.08   14.42 K 112 1
12 V* V759 Car EP* 10 53 17.91 -61 24 20.3     16.96   15.55 G 90 1
13 OGLE-TR 182 * 11 09 18.71 -61 05 42.9     16.84 16.37 15.86 ~ 32 1
14 Ross 905b Pl 11 42 11.0932 +26 42 23.653           ~ 565 1
15 Ross 905 PM* 11 42 11.0933874353 +26 42 23.658083337   12.06 10.613 10.272 8.24 M3V 483 1
16 HAT-P-3 * 13 44 22.5939154049 +48 01 43.206257583   12.53 11.86     K 67 1
17 BD+36 2593 * 15 19 57.9205371377 +36 13 46.737977732   11.83 11.12     F 82 1
18 BD+28 2507 V* 16 02 11.8463105423 +28 10 10.419642379   11.88 11.25     G1V 90 1
19 HD 147506 * 16 20 36.3579144486 +41 02 53.109043943   9.15 8.69     F8V 137 2
20 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 208 1
21 HD 149026 PM* 16 30 29.6184841164 +38 20 50.310893575   8.75 8.14     G0IV 194 1
22 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 291 1
23 V* V5125 Sgr EP* 17 51 28.26 -29 52 35.3     15.780   14.92 G2V 84 1
24 1SWASP J175207.01+373246.3 V* 17 52 07.0185036683 +37 32 46.237002085   13.114 12.402 12.06 11.603 G 62 2
25 TYC 2620-648-1 * 17 53 13.0490781575 +37 12 42.586106196   12.112 11.592     F8 41 1
26 V* V5157 Sgr EB* 17 56 35.5015759807 -29 32 21.476706712     16.560   15.30 ~ 157 1
27 HAT-P-5 * 18 17 37.3127577964 +36 37 17.168584830   12.92 11.95     G1V 52 1
28 WASP-3 ** 18 34 31.6255913635 +35 39 41.489193276   11.07 10.63 10.52   F7V 108 1
29 TrES-1 Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 309 1
30 TYC 2652-1324-1 V* 19 04 09.8516024106 +36 37 57.445911611   12.35 11.42     K0V 101 1
31 Kepler-1 Er* 19 07 14.0379171930 +49 18 59.090895318   11.85 11.25     G0V+K4.5-6 147 2
32 CoRoT-2 * 19 27 06.4944821296 +01 23 01.357597206   13.422 12.568 12.204 11.49 G7V+K9V 206 2
33 BD+47 2846 Er* 19 28 59.3538131541 +47 58 10.216250846   10.97 10.48     F6V 249 2
34 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K0V+M4V 702 1
35 WASP-2 ** 20 30 54.1279218812 +06 25 46.338261893   13 11.98     K1.5+M1V-M4V 114 2
36 V* V376 Peg EP* 22 03 10.7729598762 +18 53 03.548248479   8.21 7.63     F9V 979 1
37 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1428 1
38 BD+37 4734B PM* 22 57 46.8443014981 +38 40 30.355384717   10.82 9.87     G0V 142 1
39 WASP-4 PM* 23 34 15.0858223039 -42 03 41.049468209   13.51 12.48 11.9   G7V 124 1
40 HAT-P-6 * 23 39 05.8101319829 +42 27 57.503480354   10.88 10.47     F8V 70 1
41 WASP-5 V* 23 57 23.7565609528 -41 16 37.745589460   12.71 12.3 11.82 11.44 G4V 89 1

    Equat.    Gal    SGal    Ecl

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2020.02.17-23:06:53

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