2012MNRAS.421.2498G

Query : 2012MNRAS.421.2498G

2012MNRAS.421.2498G - Mon. Not. R. Astron. Soc., 421, 2498-2509 (2012/April-2)

A lucky imaging multiplicity study of exoplanet host stars.

GINSKI C., MUGRAUER M., SEELIGER M. and EISENBEISS T.

Abstract (from CDS):

To understand the influence of additional wide stellar companions on planet formation, it is necessary to determine the fraction of multiple stellar systems amongst the known extrasolar planet population.

We target recently discovered radial velocity exoplanetary systems observable from the Northern hemisphere and with sufficiently high proper motion to detect stellar companions via direct imaging. We utilize the Calar Alto 2.2-m telescope in combination with its lucky imaging camera AstraLux.

71 planet host stars have been observed so far, yielding one new low-mass (0.239±0.022 M☉) stellar companion, 4.5 arcsec (227 au of projected separation) north-east of the planet host star HD 185269, detected via astrometry with AstraLux. We also present follow-up astrometry on three previously discovered stellar companions, showing for the first time common proper motion of the 0.5-arcsec companion to HD 126614. Additionally, we determined the achieved detection limits for all targets, which allow us to characterize the detection space of possible further companions of these stars.


Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): techniques: high angular resolution - binaries: close - stars: individual: HD 126614 - stars: individual: HD 185269

VizieR on-line data: <Available at CDS (J/MNRAS/421/2498): table6.dat table7.dat>

CDS comments: In section 5, "HD 216614 C" is NLTT 37349 in Simbad.

Simbad objects: 81

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Number of rows : 81
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 HD 1461 PM* 00 18 41.8676757921 -08 03 10.803829898   7.14 6.46     G3VFe0.5 413 1
2 BD-17 63 PM* 00 28 34.3058646583 -16 13 34.837444133   10.77 9.720 9.666   K4Vk: 76 1
3 HAT-P-19 * 00 38 04.0135699416 +34 42 41.553538560   13.834 12.853 12.611   K1V 46 1
4 HD 4203 PM* 00 44 41.2002505536 +20 26 56.138079876       8.2   G6V 154 1
5 HD 5319 * 00 55 01.3998443472 +00 47 22.401372408   9.03 8.05     K0III 115 1
6 CD-23 395 PM* 01 06 02.0495101320 -22 27 11.350993068   11.29 10.21     K5 71 1
7 HD 6718 PM* 01 07 48.6630425064 -08 14 01.330721808   9.087 8.45     G5V 121 1
8 HD 7924 * 01 21 59.1137270904 +76 42 37.038255120   8.018 7.167     K0.5V 169 1
9 HD 8673 PM* 01 26 08.7863698584 +34 34 46.931774304   6.82 6.34 6.1   F7V 128 1
10 HD 9446 PM* 01 33 20.1847092432 +29 15 54.539434692   9.03   8.0   G5V 84 1
11 HD 13931 PM* 02 16 47.3787138792 +43 46 22.786242816       7.2   G0 115 1
12 * 30 Ari B PM* 02 36 57.7454168256 +24 38 53.000422908   7.59 7.09     F6V 157 1
13 HD 16175 PM* 02 37 01.9111780656 +42 03 45.468531972   7.92 7.28     G2 90 1
14 HD 16760 ** 02 42 21.3134499936 +38 37 07.231908072   9.45 8.76     G2V 96 1
15 HD 17092 RG* 02 46 22.1182598088 +49 39 11.095466760   9.00 7.73     K2III 54 1
16 CD-23 1056 PM* 02 46 42.8869269570 -23 05 11.802392748 12.911 11.651 10.237 9.36 8.544 K5V 78 1
17 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 195 2
18 HD 22781 PM* 03 40 49.5243423552 +31 49 34.652692848   9.628 8.766 8.45   K0 56 1
19 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 628 1
20 HD 32518 PM* 05 09 36.7203662520 +69 38 21.854780160 8.550 7.530 6.420     K1III 71 1
21 HD 34445 PM* 05 17 40.9803494808 +07 21 12.053055060   7.97 7.33     G0 119 1
22 HD 33564 PM* 05 22 33.5306004096 +79 13 52.142643912       4.8   F7V 198 1
23 HD 38801 PM* 05 47 59.1754801416 -08 19 39.720746928   9.14 8.27     G8IV 70 1
24 HD 45652 PM* 06 29 13.1919972192 +10 56 02.005903500       7.6   K5 81 1
25 * 6 Lyn PM* 06 30 47.1075901469 +58 09 45.479816893   6.798 5.855 6.95   K0.5IIIbFe0.5 139 1
26 HD 68988 PM* 08 18 22.1728652088 +61 27 38.595044628   8.84 8.19     G1V 175 2
27 HD 73534 PM* 08 39 15.8031501864 +12 57 37.346867496   9.21 8.24     G5 68 1
28 HD 74156 PM* 08 42 25.1219511432 +04 34 41.145751740       7.2   G1V 247 2
29 HD 75898 PM* 08 53 50.8052389824 +33 03 24.520566888   8.67 8.03 10.6   G0 93 1
30 * 41 Lyn PM* 09 28 39.9886724904 +45 36 05.331128364   6.389 5.393 6.54   K0III 96 1
31 HD 87883 PM* 10 08 43.1405863056 +34 14 32.146654632   8.54 7.55     K0V 137 1
32 * 24 Sex PM* 10 23 28.3698081504 -00 54 08.092603368   7.400 6.441 6.41   K0IV 94 1
33 Ross 1003 PM* 11 41 44.6358403057 +42 45 07.102117090   13.36 13.795 11.524 9.18 M4.0V 172 1
34 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
35 HD 104985 HB* 12 05 15.1171894272 +76 54 20.642733144       5.2   G8.5IIIb 172 1
36 HD 106221 * 12 13 07.9507132440 +67 04 24.278085804   9.04 8.60 8.92   F8 15 0
37 HD 107148 PM* 12 19 13.4910214488 -03 19 11.239255452   8.72 8.02 8.888   G5V 152 1
38 HD 109246 PM* 12 32 07.1875354896 +74 29 22.368077052       8.43   G0V 48 1
39 * chi Vir ** 12 39 14.7669620640 -07 59 44.033845848   5.886 4.643 6.45   K2+IIICN0.5 167 1
40 HD 114783 PM* 13 12 43.7855575272 -02 15 54.130663296 9.137 8.469 7.550 7.053 6.627 K1V 214 1
41 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
42 HD 116206 * 13 21 48.6817008984 +17 45 55.740233880   8.16 7.80     F0 45 0
43 HD 118203 PM* 13 34 02.5393988472 +53 43 42.698012376   8.75 8.06     G0V 113 1
44 HD 119750 * 13 45 10.4335750704 -03 18 54.833731920   8.82 8.58 9.21   A9V 19 0
45 * tau Boo B * 13 47 15.3324773299 +17 27 26.432463096     11.1     M3V 36 0
46 * tau Boo PM* 13 47 15.7381720026 +17 27 24.809555600 5.02 4.98 4.49 4.09 3.85 F7IV-V 1049 1
47 HD 125612 PM* 14 20 53.5176649416 -17 28 53.489705520   8.93 8.32     G3V 147 1
48 LP 680-57 PM* 14 26 45.8363969472 -05 10 19.427937780       15.77   M4.5 19 0
49 HD 126614 PM* 14 26 48.2794944240 -05 10 40.013055624   9.662 8.787     G8IV 126 1
50 HD 128311 BY* 14 36 00.5602765558 +09 44 47.454573266 9.232 8.441 7.446 6.895 6.425 K3V 338 1
51 HD 131040 * 14 49 32.3819971776 +51 22 28.211698236 6.840 6.860 6.480     F3V 53 0
52 HD 132406 PM* 14 56 54.6513840960 +53 22 55.806486636 9.300 9.100   8.1   G0V 76 1
53 HD 136418 PM* 15 19 06.1820919020 +41 43 59.542136046 9.480 8.810   7.3   G5 51 1
54 * iot Dra V* 15 24 55.7738042889 +58 57 57.837111857 5.68 4.45 3.29 2.51 1.91 K2III 428 1
55 * kap CrB PM* 15 51 13.9312943632 +35 39 26.573691158 6.69 5.82 4.82 4.06 3.57 K1IVa 290 1
56 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 482 1
57 HD 148427 RG* 16 28 28.1511991416 -13 23 58.690451904   7.85 6.89     K0III/IV 67 1
58 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 267 1
59 HD 150706 PM* 16 31 17.5830478008 +79 47 23.197555824   7.622 7.016     G0 234 1
60 HD 149303 * 16 31 47.2275879216 +45 35 53.744910612 5.850 5.78 5.68 7.16   A2Vn_lB 69 0
61 HD 149143 PM* 16 32 51.0507175368 +02 05 05.380313604   8.56 7.89     G3V 116 1
62 BD+25 3173 PM* 16 58 08.8496107083 +25 44 38.974052855 12.342 11.139 9.655 8.685 7.602 M2V 273 1
63 HD 154345 PM* 17 02 36.4038090379 +47 04 54.764174452   7.50   6.3   G9 297 1
64 HD 155358 PM* 17 09 34.6176428924 +33 21 21.085565784       7.0   G0 175 1
65 G 139-21 PM* 17 15 18.9339850845 +04 57 50.066612336     14.71 13.26 11.50 M4.5V 372 1
66 HD 156668 PM* 17 17 40.4896074192 +29 13 38.018547948       7.8   K3V 98 1
67 HD 164922 PM* 18 02 30.8623420470 +26 18 46.805024012   7.79   6.5   G9V 238 1
68 HD 167042 PM* 18 10 31.6398993768 +54 17 11.592196980   6.89   5.4   K1III 174 1
69 * 42 Dra PM* 18 25 59.1369601368 +65 33 48.531343788   6.005 4.823     K1.5IIIFe-1 190 1
70 HD 173416 PM* 18 43 36.1092769368 +36 33 23.782819428   7.093 6.037     G8 57 1
71 HD 176051B PM* 18 57 01.5359159149 +32 54 05.017085565   8.894 7.84     K1V 18 0
72 HD 176051 SB* 18 57 01.60985 +32 54 04.5723 5.85 5.82   4.9   F9V+K1V 272 1
73 HD 176051A PM* 18 57 01.6366461792 +32 54 04.748586012   5.83 5.277     F9V 35 0
74 HD 183263 * 19 28 24.5713671072 +08 21 29.004515424   8.51 7.86     G6IV 149 1
75 HD 185269 PM* 19 37 11.7411563088 +28 29 59.507007072   7.266 6.669 7.46   G2V 121 1
76 HD 187123 PM* 19 46 58.1122487784 +34 25 10.281404460       7.4   G2V 264 1
77 * ksi Aql ** 19 54 14.8815179040 +08 27 41.235438096   5.759 4.707     G9.5IIIb 157 1
78 HD 200964 PM* 21 06 39.8422794792 +03 48 11.226709188   7.379 6.487     G8IV 101 1
79 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
80 HD 218566 PM* 23 09 10.7269903047 -02 15 38.682667763   9.641 9.208 9.105 8.73 K3V 123 1
81 * 14 And PM* 23 31 17.4132523248 +39 14 10.314703644   6.24   4.6   G8III 192 1

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