2016A&A...589A..58E


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST14:52:28

2016A&A...589A..58E - Astronomy and Astrophysics, volume 589A, 58-58 (2016/5-1)

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere.

EVANS D.F., SOUTHWORTH J., MAXTED P.F.L., SKOTTFELT J., HUNDERTMARK M., JORGENSEN U.G., DOMINIK M., ALSUBAI K.A., ANDERSEN M.I., BOZZA V., BRAMICH D.M., BURGDORF M.J., CICERI S., D'AGO G., FIGUERA JAIMES R., GU S.-H., HAUGBOLLE T., HINSE T.C., JUNCHER D., KAINS N., KERINS E., KORHONEN H., KUFFMEIER M., MANCINI L., PEIXINHO N., POPOVAS A., RABUS M., RAHVAR S., SCHMIDT R.W., SNODGRASS C., STARKEY D., SURDEJ J., TRONSGAARD R., VON ESSEN C., WANG Y.-B. and WERTZ O.

Abstract (from CDS):

Context. Wide binaries are a potential pathway for the formation of hot Jupiters. The binary fraction among host stars is an important discriminator between competing formation theories, but has not been well characterised. Additionally, contaminating light from unresolved stars can significantly affect the accuracy of photometric and spectroscopic measurements in studies of transiting exoplanets.
Aims. We observed 101 transiting exoplanet host systems in the Southern hemisphere in order to create a homogeneous catalogue of both bound companion stars and contaminating background stars, in an area of the sky where transiting exoplanetary systems have not been systematically searched for stellar companions. We investigate the binary fraction among the host stars in order to test theories for the formation of hot Jupiters.
Methods. Lucky imaging observations from the Two Colour Instrument on the Danish 1.54m telescope at La Silla were used to search for previously unresolved stars at small angular separations. The separations and relative magnitudes of all detected stars were measured. For 12 candidate companions to 10 host stars, previous astrometric measurements were used to evaluate how likely the companions are to be physically associated.
Results. We provide measurements of 499 candidate companions within 20 arcsec of our sample of 101 planet host stars. 51 candidates are located within 5 arcsec of a host star, and we provide the first published measurements for 27 of these. Calibrations for the plate scale and colour performance of the Two Colour Instrument are presented.
Conclusions. We find that the overall multiplicity rate of the host stars is 38+17–13%, consistent with the rate among solar-type stars in our sensitivity range, suggesting that planet formation does not preferentially occur in long period binaries compared to a random sample of field stars. Long period stellar companions (P>10yr) appear to occur independently of short period companions, and so the population of close-in stellar companions is unconstrained by our study.

Abstract Copyright: © ESO, 2016

Journal keyword(s): planets and satellites: dynamical evolution and stability - planets and satellites: formation - techniques: high angular resolution - binaries: visual

VizieR on-line data: <Available at CDS (J/A+A/589/A58): table1.dat table4.dat table8.dat>

Simbad objects: 85

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Number of rows : 85

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-44 * 00 15 36.7694526377 -11 56 17.286419043   13.7   13.17 12.19 ~ 23 1
2 WASP-26 * 00 18 24.7008274105 -15 16 02.277509187   11.62 11.30 10.99 10.46 G0 38 1
3 WASP-45 PM* 00 20 56.9940389706 -35 59 53.747385579   13.33 11.80 12.20   ~ 19 1
4 EGGR 382 WD? 00 33 54.4629052338 -12 07 58.777597136 15.511 15.572 14.891 14.467 14.051 DC? 92 0
5 CD-34 241 * 00 41 46.9205477795 -33 39 08.431504848   11.696 11.208     F 7 0
6 CD-56 324 PM* 01 38 25.0566798190 -55 46 19.526723475   11.31 10.57     G5 21 0
7 BD-07 436 ** 02 28 37.226 -07 03 38.39   10.87 10.12 10.23   ~ 19 0
8 WASP-22 * 03 31 16.3269748036 -23 49 10.841600521   12.38 11.99 11.41   G 41 1
9 WASP-98 V* 03 53 42.9206362802 -34 19 41.585562149     13.0     G7 12 0
10 HATS-5 * 04 28 53.4831907875 -21 28 55.062699140   13.439 12.630     ~ 10 0
11 CPD-64 356 * 04 35 50.3302174829 -64 01 37.332771736   11.07 10.80     F2 14 0
12 BD-06 1077 * 05 04 19.6324126613 -06 13 47.376129317   11.55 10.94     ~ 17 1
13 V* V1174 Ori Or* 05 34 27.8535605060 -05 41 37.876152541 16.506 15.070 14.305   12.367 M0 49 0
14 WASP-49 PM* 06 04 21.4734612842 -16 57 55.108837741   11.93 11.35     ~ 27 1
15 HATS-4 * 06 16 26.9016329535 -22 32 48.815039059   14.267 13.459     ~ 11 0
16 CoRoT-19 * 06 28 08.0586283720 -00 10 14.532354610   14.780 14.007 14.17 13.00 ~ 22 1
17 CoRoT-20 * 06 30 52.9022405280 +00 13 36.858471822   15.41 14.66 14.60 13.69 ~ 15 2
18 CoRoT-18 * 06 32 41.3777044284 -00 01 53.725631349   15.8 15.00 14.9 14.05 ~ 31 2
19 CPD-23 1329 * 06 33 24.2672798716 -23 29 10.296975033   10.78 10.34     F6 16 0
20 CoRoT-7 * 06 43 49.4690410679 -01 03 46.825797768   12.78 11.73 11.36 10.87 K0V 175 1
21 WASP-64 V* 06 44 27.6052132708 -32 51 30.178710998           ~ 16 1
22 WASP-23 PM* 06 44 30.6134894586 -42 45 42.666092659   13.42 12.52 12.31   ~ 28 1
23 CoRoT-1 * 06 48 19.1724141241 -03 06 07.710423478     13.6 13.44 12.88 G0V 106 2
24 CoRoT-4 * 06 48 46.7133639143 -00 40 21.969520601       13.42   F0V 57 1
25 CoRoT-13 EB* 06 50 53.0726687117 -05 05 11.190142526   15.33 15.039 15.17 14.19 G0V 24 1
26 HAT-P-35 * 08 13 00.1786456777 +04 47 13.417449950   12.84 11.59 12.38   ~ 20 1
27 BD+06 1909 * 08 15 47.9805310385 +05 50 12.352063199   10.95 10.35     G0 40 1
28 WASP-36 V* 08 46 19.2977797896 -08 01 37.012684040   13.1 12.7   12.05 G2 31 1
29 WASP-65 * 08 53 17.8286747380 +08 31 22.811264443   12.39 12.45 11.76   ~ 13 1
30 WASP-19 LP* 09 53 40.0764883458 -45 39 33.055979403   13.05 12.31 12.12 11.35 G8V 134 1
31 WASP-66 * 10 32 53.9927339246 -34 59 23.456873048   12.00 11.60     F4 16 1
32 OGLE-TR 211 * 10 40 14.3825488221 -62 27 20.019051097       15.24   ~ 33 1
33 OGLE-TR 113 SB* 10 52 24.2808297652 -61 26 48.845891762     16.08 15.41 14.42 K 112 1
34 OGLE2-TR L9 * 11 07 55.1807238868 -61 08 46.537193777       14.60   F3 32 1
35 WASP-31 * 11 17 45.3578468391 -19 03 17.216528280   12.01 11.66 11.98   F: 41 1
36 HATS-1 * 11 42 06.0805009551 -23 21 17.428181767   12.729 12.059 12.08 11.38 ~ 21 1
37 HATS-2 * 11 46 57.3702861837 -22 33 46.816907262   14.53 13.62 13.40   ~ 26 1
38 CD-29 9873 * 12 42 28.4949324021 -30 38 23.527612553   12.36 11.63 11.39 10.78 G8V 39 1
39 WASP-42 V* 12 51 55.5580132277 -42 04 25.094906019           ~ 18 1
40 WASP-55 * 13 35 01.9537539030 -17 30 12.526334825   12.69 11.75     G1 30 1
41 BD+00 3088 * 13 41 49.0301976803 -00 07 41.033730455   11.01 10.41 10.0 9.773 F8 22 1
42 CD-31 10766 * 13 55 42.7119654298 -32 09 34.615276547   11.396 10.910     F7 51 1
43 HAT-P-26 PM* 14 12 37.5329989220 +04 03 36.117671696   12.33 11.76 11.56   K1 34 1
44 WASP-16 * 14 18 43.9226513410 -20 16 31.842223819   12.51 11.29 11.00 10.49 G3V 50 1
45 WASP-39 * 14 29 18.4151765921 -03 26 40.203046112   12.93 12.09 12.17 11.29 ~ 35 1
46 WASP-37 * 14 47 46.5618120089 +01 03 53.802386624   13.304 12.704 12.87 12.24 G2V 26 1
47 HAT-P-27 * 14 51 04.1870409044 +05 56 50.548178856   13.18 12.19 11.98 11.23 G8 44 1
48 WASP-57 V* 14 55 16.8228919016 -02 03 27.599132124   13.6 13.04 12.90 12.243 G6 15 1
49 WASP-24 * 15 08 51.7366806893 +02 20 35.964406086   12.00 11.22 11.43   F8-9 38 1
50 CD-27 10695 * 15 59 50.9489706053 -28 03 42.309432433   11.83 11.59 11.31 10.92 F4 92 1
51 WASP-103 * 16 37 15.5753608801 +07 11 00.119024745     12.1     F8V 34 1
52 G 139-21 PM* 17 15 18.9337265994 +04 57 50.064695682       14.394   M4.5V 242 1
53 HAT-P-46 * 18 01 46.6086614794 -02 58 15.459513220   12.9 11.94 11.62 11.07 ~ 18 1
54 OGLE 3 Lev 18 04 43.45 -30 14 10.7     17.6     ~ 13 0
55 HAT-P-45 * 18 17 29.5774121654 -03 22 51.739577015   13.7 12.79 12.32 11.68 ~ 12 1
56 CoRoT-25 * 18 42 31.1200588130 +06 30 49.746375398 15.93 15.84 15.02 14.61   ~ 8 1
57 CoRoT-11 EB* 18 42 44.9499508376 +05 56 15.652163640   13.73 12.939     F6V 42 1
58 CoRoT-9 * 18 43 08.8101080314 +06 12 14.912939950   14.57 13.46 13.75   G3V 35 1
59 CoRoT-6 * 18 44 17.4077888929 +06 39 47.513854490   14.68 13.80 14.18   F5V 38 1
60 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 285 2
61 CoRoT-8 * 19 26 21.2426686221 +01 25 35.178176730   16.096 14.797 14.267 13.26 K1V 29 1
62 CoRoT-2 * 19 27 06.4944821296 +01 23 01.357597206   13.422 12.568 12.204 11.49 G7V+K9V 214 2
63 CoRoT-3 EB* 19 28 13.2642482783 +00 07 18.614302248   14.199 13.292 13.099 12.54 F3V 67 1
64 WASP-67 * 19 42 58.5217085119 -19 56 58.523005452   12.90 12.54     K0V 22 1
65 HAT-P-41 * 19 49 17.4399552361 +04 40 20.783585782   11.65 11.36     ~ 24 1
66 CD-30 17706 WD* 20 10 56.8485174654 -30 13 06.629141494 11.654 12.286 12.242 12.311 12.381 DA3.1 221 0
67 WASP-80 * 20 12 40.1691752075 -02 08 39.191157456   12.810 11.939 11.510 10.279 K7V-M0V 39 1
68 WASP-2 ** 20 30 54.1279218812 +06 25 46.338261893   13 11.98     K1.5+M1V-M4V 118 2
69 WASP-2B *i* 20 30 54.179 +06 25 46.18           M0-1.5 22 1
70 WASP-88 * 20 38 02.6869998006 -48 27 43.425489676           ~ 9 1
71 HD 197286 PM* 20 44 10.2207500229 -39 13 30.859306335   9.98 9.50     F5V 62 1
72 HATS-3 * 20 49 49.7852629888 -24 25 43.539819512   12.45 12.43     ~ 10 1
73 BD-05 5432 PM* 21 00 06.1969250596 -05 05 40.037007561   10.93 9.87     ~ 26 1
74 HD 358155 ** 21 01 54.480000 -13 25 59.71008   11.75 10.79 11.12   G4+K3 19 1
75 WASP-90 V* 21 02 07.6771899975 +07 03 22.517236580           F6 5 0
76 WASP-46 * 21 14 56.8596386903 -55 52 18.460013390   13.0   13.06 12.29 G6 28 1
77 NGC 7293 PN 22 29 38.5453078023 -20 50 13.746093105 11.894 13.158 13.524 13.689 13.898 DAO.5 901 0
78 LP 877-23 PM* 22 52 41.0353308036 -20 35 32.995847106   13.02 11.90     ~ 104 0
79 WASP-6 * 23 12 37.7368657624 -22 40 26.277489164   12.90 11.91     G8V 70 1
80 EGGR 264 WD* 23 19 35.3881040214 -17 05 28.468265988 13.279 14.132 14.111 14.07 14.049 DB3 109 0
81 Feige 110 HS* 23 19 58.3995050606 -05 09 56.170282845 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 559 1
82 WASP-28 * 23 34 27.8815921452 -01 34 48.112835474   12.61     11.47 F8-G0 31 1
83 CD-35 16019 PM* 23 59 36.0711854449 -35 01 52.923483315   10.49 9.87 9.91   G6 80 0
84 CD-35 16019B PM* 23 59 36.1283502165 -35 01 57.346224111           M 3 0
85 WASP-9 * ~ ~           G0 7 2

    Equat.    Gal    SGal    Ecl

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2020.10.21-14:52:28

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