2010ApJ...716.1551L

Query : 2010ApJ...716.1551L

2010ApJ...716.1551L - Astrophys. J., 716, 1551-1565 (2010/June-3)

The Lyot project direct imaging survey of substellar companions: statistical analysis and information from nondetections.

LECONTE J., SOUMMER R., HINKLEY S., OPPENHEIMER B.R., SIVARAMAKRISHNAN A., BRENNER D., KUHN J., LLOYD J.P., PERRIN M.D., MAKIDON R., ROBERTS L.C., GRAHAM J.R., SIMON M., BROWN R.A., ZIMMERMAN N., CHABRIER G. and BARAFFE I.

Abstract (from CDS):

The Lyot project used an optimized Lyot coronagraph with extreme adaptive optics at the 3.63 m Advanced Electro-Optical System telescope to observe 86 stars from 2004 to 2007. In this paper, we give an overview of the survey results and a statistical analysis of the observed nondetections around 58 of our targets to place constraints on the population of substellar companions to nearby stars. The observations did not detect any companion in the substellar regime. Since null results can be as important as detections, we analyzed each observation to determine the characteristics of the companions that can be ruled out. For this purpose, we use a Monte Carlo approach to produce artificial companions and determine their detectability by comparison with the sensitivity curve for each star. All the non-detection results are combined using a Bayesian approach and we provide upper limits on the population of giant exoplanets and brown dwarfs for this sample of stars. Our nondetections confirm the rarity of brown dwarfs around solar-like stars and we constrain the frequency of massive substellar companions (M>40 MJ) at orbital separation between and 10 and 50 AU to be ≲20%.

Abstract Copyright: ∼

Journal keyword(s): instrumentation: adaptive optics - methods: data analysis - techniques: image processing

Simbad objects: 87

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Number of rows : 87
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 * 49 Cet PM* 01 34 37.7786780856 -15 40 34.898673000   5.667 5.607   5.54 A1V 348 0
2 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
3 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
4 HD 26923 PM* 04 15 28.8004060272 +06 11 12.698572488 6.910 6.860   5.9   G0IV 236 0
5 V* AB Aur Ae* 04 55 45.8458932216 +30 33 04.292077032 7.20 7.16 7.05 6.96 6.70 A0Ve 1176 2
6 HD 31648 Ae* 04 58 46.2655706952 +29 50 36.987625680 7.84 7.78 7.62 7.76 7.43 A5Vep 612 0
7 * 32 Ori ** 05 30 47.05091 +05 56 53.2925 3.51 4.07 4.20 4.26 4.40 B5IV+B7V 205 0
8 * zet Lep * 05 46 57.3413646658 -14 49 19.020570470   3.637 3.525     A2IV-V(n) 308 0
9 * chi01 Ori SB* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 895 0
10 * k Ori PM* 06 16 26.6191067712 +12 16 19.787639592   5.46   4.8   F5V 153 0
11 * ksi Gem RG* 06 45 17.3644854477 +12 53 44.141855267 3.85 3.79 3.36 2.97 2.74 F5IV-V 233 0
12 HD 50554 PM* 06 54 42.8261485848 +24 14 44.005690212   7.41 6.84     F8V 219 1
13 HD 53367 Ae* 07 04 25.5189757244 -10 27 15.613478141 6.81 7.40 6.96 7.92   B0IV/Ve 330 0
14 * rho Gem PM* 07 29 06.71887 +31 47 04.3773 4.48 4.50 4.18 3.86 3.67 F1V 338 0
15 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1150 2
16 HD 63433 MS* 07 49 55.0606576176 +27 21 47.457467316   7.59 6.91     G5V 206 0
17 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
18 * iot UMa A SB* 08 59 12.4531549177 +48 02 30.562298470   3.36 3.13     A7V(n) 257 0
19 * iot UMa ** 08 59 12.45362 +48 02 30.5741 3.40 3.33 3.14 2.92 2.85 A6 307 0
20 * 10 UMa SB* 09 00 38.4734170729 +41 46 58.888412654 4.440 4.390 3.960 3.57 3.35 F3V+G5V 357 0
21 HD 78366 PM* 09 08 51.0703818408 +33 52 55.986351384   6.53   5.6   G0IV-V 279 0
22 * pi.01 Cnc SB* 09 12 17.5474052342 +14 59 45.776204103 7.49 7.24 6.51 5.90 5.52 G9V 234 0
23 * tau01 Hya SB* 09 29 08.9313661104 -02 46 08.182035516   5.06 4.60     F5V 201 0
24 HD 82443 BY* 09 32 43.7594578944 +26 59 18.706023348   7.78   6.6   G9V(k) 271 1
25 * 11 LMi RS* 09 35 39.5021937366 +35 48 36.477051175 6.560 6.110 5.340 4.79 4.42 G8Va 407 0
26 * 15 LMi PM* 09 48 35.3713484808 +46 01 15.626615412 5.80 5.72 5.10 4.57 4.23 G0.5Va 339 0
27 * 20 LMi PM* 10 01 00.6568762394 +31 55 25.213014837   6.05 5.37 4.9   G3VaHdel1 430 0
28 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 891 1
29 * 40 Leo dS* 10 19 44.1672125464 +19 28 15.285966538   5.24   4.5   F6IV-V 288 0
30 * 47 UMa PM* 10 59 27.9727514012 +40 25 48.920572724   5.66   4.7   G1-VFe-0.5 824 1
31 HD 97334 BY* 11 12 32.3503039560 +35 48 50.688978228   7.02 6.41     G2 306 0
32 HD 101177 ** 11 38 44.90018 +45 06 30.3054 7.05 7.00   6.1   G0V+K2V 174 0
33 * bet Leo dS* 11 49 03.57834 +14 34 19.4090 2.30 2.22 2.13 2.08 2.06 A3Va 605 1
34 * bet Vir PM* 11 50 41.7185158616 +01 45 53.001539131 4.26 4.15 3.60 3.13 2.85 F9V 973 0
35 HD 107146 PM* 12 19 06.5018840304 +16 32 53.867731128   7.61   6.7   G2V 307 0
36 * eta Crv PM* 12 32 04.2264018482 -16 11 45.618615379   4.658 4.294     F2V 353 0
37 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
38 HD 111395 BY* 12 48 47.0481446766 +24 50 24.818642182   6.98   5.8   G5V 206 0
39 * eps UMa a2* 12 54 01.7495922 +55 57 35.362645 1.76 1.75 1.77 1.79 1.82 A1III-IVpkB9 488 0
40 * e Vir PM* 13 16 46.5148594512 +09 25 26.960139646   5.81   4.8   G0IV 590 1
41 * 70 Vir PM* 13 28 25.8085908881 +13 46 43.638308807 5.930 5.680 4.970 4.37 3.98 G4Va 754 1
42 * zet Vir PM* 13 34 41.5913587272 -00 35 44.939098032 3.58 3.50 3.38 3.31 3.25 A2Van 206 0
43 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 733 0
44 HD 127334 PM* 14 29 36.8087722032 +41 47 45.285437076 7.370 7.050   5.9   G5VCH0.3 196 0
45 * sig Boo PM* 14 34 40.8173867232 +29 44 42.457673940 4.76 4.84 4.47 4.13 3.94 F4VkF2mF1 632 0
46 * ksi Boo BY* 14 51 23.37993 +19 06 01.6994 5.618 5.370 4.593 3.91 3.48 G7Ve+K5Ve 503 0
47 V* DE Boo RS* 14 53 23.7654730144 +19 09 10.072718521   6.84 6.00 5.5   K0.5V 287 0
48 * c Boo PM* 15 07 18.0659348352 +24 52 09.099406380 5.34 5.36 4.93 4.53 4.32 F5V 374 0
49 * 5 Ser PM* 15 19 18.7974409923 +01 45 55.466382064   5.60   4.8   F8IV 355 0
50 * lam Ser PM* 15 46 26.6142121632 +07 21 11.047378824 5.13 5.03 4.42 3.92 3.60 G0-V 618 0
51 HD 141569 Or* 15 49 57.7482550392 -03 55 16.341617064 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 578 0
52 * eps Ser PM* 15 50 48.9652705631 +04 28 39.831495034   3.844 3.693     kA2hA5mA7V 206 0
53 * chi Her PM* 15 52 40.5410491705 +42 27 05.462878877 5.19 5.19 4.62 4.14 3.82 F8VFe-2Hdel-1 532 0
54 * gam Ser PM* 15 56 27.1826577018 +15 39 41.809580382 4.31 4.34 3.84 3.37 3.13 F6V 586 0
55 * rho CrB PM* 16 01 02.6604891411 +33 18 12.639472357   6.01   5.0   G0+VaFe-1 686 1
56 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 482 1
57 * 18 Sco PM* 16 15 37.2702755653 -08 22 09.982125430   6.15 5.50     G2Va 671 0
58 * 12 Oph BY* 16 36 21.4496896968 -02 19 28.513024233 7.00 6.55 5.77 5.13 4.74 K1V 525 0
59 * w Her RG* 17 20 39.5674498400 +32 28 03.877958860 6.08 6.01 5.39 4.89 4.56 G0V 481 0
60 HD 157347 PM* 17 22 51.2877087336 -02 23 17.439450684   6.965 6.278     G3V 231 0
61 HD 159062 SB* 17 30 16.4279702616 +47 24 07.900960644       6.8   G9V_Fe-0.8 121 0
62 * alf Oph ** 17 34 56.06945 +12 33 36.1346 2.32 2.22 2.07 1.93 1.85 A5IVnn 495 0
63 HD 160346 SB* 17 39 16.9163262 +03 33 18.875718   7.496 6.525 5.9   K3-V 321 0
64 * mu.01 Her ** 17 46 27.5472960785 +27 43 14.560978925 4.56 4.17 3.42 2.89 2.51 G5IV 719 0
65 HD 163296 Ae* 17 56 21.2881851168 -21 57 21.871819008 7.00 6.93 6.85 6.86 6.67 A3VaekA1mA1 1301 0
66 * 70 Oph SB* 18 05 27.28518 +02 30 00.3558 5.40 4.89 4.03 3.38 2.92 K0-V 679 0
67 * b Her SB* 18 07 01.5906608928 +30 33 43.584892488 5.52 5.67 5.13 4.61 4.28 F6V 493 0
68 HD 166620 PM* 18 09 37.4162111401 +38 27 27.998016381 7.86 7.27 6.40 5.63 5.14 K2V 481 0
69 HD 168009 PM* 18 15 32.4633956040 +45 12 33.540706764   6.931 6.298     G1V 239 0
70 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
71 HD 176051 SB* 18 57 01.60985 +32 54 04.5723 5.85 5.82   4.9   F9V+K1V 272 1
72 HD 178428 SB* 19 07 57.3202744638 +16 51 12.174804109   6.77 6.07 5.6   G4.5V 200 0
73 HD 178911 SB* 19 09 04.3519341413 +34 36 01.242009328   7.37   6.3   G1V+K1V 142 0
74 HD 182488 PM* 19 23 34.0131683760 +33 13 19.078425912       5.8   K0V 306 1
75 * b Aql PM* 19 24 58.1999714302 +11 56 39.888480530 6.35 5.93   4.7   G7IVHdel1 522 0
76 HD 184385 PM* 19 33 25.5526276656 +21 50 25.176346080 7.970 7.630 6.880 6.468 6.098 G8V 107 0
77 * tet Cyg PM* 19 36 26.5330717650 +50 13 15.965003998 4.83 4.86 4.48 4.13 3.92 F3+V 361 1
78 * 17 Cyg PM* 19 46 25.6000487071 +33 43 39.353533637   5.46   4.7   F5.5IV-V 290 0
79 * alf Aql dS* 19 50 46.99855 +08 52 05.9563 1.07 0.98 0.76 0.62 0.49 A7Vn 919 1
80 HD 190360 PM* 20 03 37.4050868074 +29 53 48.492435887   6.44   5.2   G7IV-V 490 1
81 * 15 Sge PM* 20 04 06.2207683221 +17 04 12.676556401   6.390 5.788 5.4   G0V 420 0
82 * b01 Cyg RS* 20 06 21.7672972921 +35 58 20.889117643   6.21   4.8   G8.5IVa 191 0
83 HD 195019 PM* 20 28 18.6366815627 +18 46 10.180434472 7.730     6.5   G1V 276 1
84 * eps Cyg ** 20 46 12.6722768426 +33 58 13.182037125 4.370 3.520 2.480 1.73 1.19 K0III 519 0
85 * 61 Cyg A BY* 21 06 53.9395895022 +38 44 57.902349973 7.50 6.39 5.21 4.19 3.54 K5V 1099 0
86 * 7 And PM* 23 12 33.0035121942 +49 24 22.345927341 4.85 4.81 4.52 4.23 4.07 F1V 162 0
87 * iot Psc PM* 23 39 57.0406036160 +05 37 34.653911951 4.640 4.620 4.120 3.68 3.37 F7V 641 0

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