2011ApJ...743..141C

Query : 2011ApJ...743..141C

2011ApJ...743..141C - Astrophys. J., 743, 141 (2011/December-3)

A Spitzer IRAC imaging survey for T dwarf companions around M, L, and T dwarfs: observations, results, and Monte Carlo population analyses.

CARSON J.C., MARENGO M., PATTEN B.M., LUHMAN K.L., SONNETT S.M., HORA J.L., SCHUSTER M.T., ALLEN P.R., FAZIO G.G., STAUFFER J.R. and SCHNUPP C.

Abstract (from CDS):

We report observational techniques, results, and Monte Carlo population analyses from a Spitzer Infrared Array Camera imaging survey for substellar companions to 117 nearby M, L, and T dwarf systems (median distance of 10 pc, mass range of 0.6 to ∼0.05 M☉). The two-epoch survey achieves typical detection sensitivities to substellar companions of [4.5 µm] ≤ 17.2 mag for angular separations between about 7'' and 165''. Based on common proper motion analysis, we find no evidence for new substellar companions. Using Monte Carlo orbital simulations (assuming random inclination, random eccentricity, and random longitude of pericenter), we conclude that the observational sensitivities translate to an ability to detect 600-1100 K brown dwarf companions at semimajor axes ≳ 35 AU and to detect 500-600 K companions at semimajor axes ≳ 60 AU. The simulations also estimate a 600-1100 K T dwarf companion fraction of <3.4% for 35-1200 AU separations and <12.4% for the 500-600 K companions for 60-1000 AU separations.

Abstract Copyright: ∼

Journal keyword(s): binaries: general - brown dwarfs - infrared: stars - methods: numerical - methods: statistical - stars: late-type - stars: low-mass

VizieR on-line data: <Available at CDS (J/ApJ/743/141): table1.dat>

Simbad objects: 125

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Number of rows : 125
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 NAME L 362-29 BC BD* 00 04 34.8671722377 -40 44 06.463544237       19.61 16.88 L5+L5 119 0
2 L 362-29 PM* 00 04 36.4375346731 -40 44 02.880162313   14.47 12.84 12.525   M4V 88 0
3 HD 225213 PM* 00 05 24.4284351777 -37 21 26.507931505 11.074 10.022 8.562 7.589 6.432 M2V 229 0
4 G 158-27 PM* 00 06 43.1973190107 -07 32 17.019101068     13.837 13.605 10.15 M5.5V 257 0
5 GSC 02794-01389 * 00 18 00.0971763336 +44 00 29.279126016   12.79 11.71 12.34   M5V 5 0
6 HD 1326 PM* 00 18 22.8849799680 +44 01 22.637951588   9.61 8.14 7.3   M2V 602 0
7 HD 1326B PM* 00 18 25.8251408611 +44 01 38.092431857   12.84 11.04 10.3   M3.5V 317 0
8 Koenigstuhl 1B BD* 00 21 05.9180929272 -42 44 43.525081140       19.46 16.79 L0.6:V 36 0
9 V* DY Psc BY* 00 24 24.6317407560 -01 58 19.954412004     19.42 17.301 15.022 M9.5V 220 1
10 LSPM J0036+1821 BD* 00 36 16.1118891182 +18 21 10.286665966       18.451 16.053 L3.5 230 0
11 LP 938-71 LM* 01 02 51.0512652806 -37 37 43.765024016     18.575 16.223 13.83 M8.0V 40 0
12 V* YZ Cet PM* 01 12 30.6368826382 -16 59 56.358011559 15.315 13.885 12.074 10.696 8.938 M4.0Ve 335 0
13 G 272-61A PM* 01 39 01.3772561114 -17 57 02.587471791           M5.5V 143 0
14 G 272-61B PM* 01 39 01.6377185550 -17 57 01.001240728           M6V 892 0
15 2MASS J01410321+1804502 BD* 01 41 03.2518585628 +18 04 50.164072672           L0.8V 37 0
16 BRLT 38 BD* 01 51 41.55936 +12 44 30.0768           T0.5 74 0
17 V* TZ Ari PM* 02 00 12.9563198327 +13 03 07.000569241 15.406 14.100 12.298 10.943 9.195 M4.5V 325 0
18 2MASS J02074284+0000564 BD* 02 07 42.84984 +00 00 56.4408           T4.5 46 0
19 2MASS J02431371-2453298 BD* 02 43 13.71792 -24 53 29.8356           T6.0 55 0
20 NAME Teegarden's Star LM* 02 53 00.8917932409 +16 52 52.632190137   17.21 15.14 13.03 10.65 dM6 207 0
21 DENIS J025503.3-470049 BD* 02 55 03.6927058871 -47 00 51.356903955     22.921 19.906 17.454 L9 170 0
22 2MASS J03202839-0446358 BD* 03 20 28.3630482681 -04 46 36.396685568           M8.5+T5 49 0
23 L 372-58 PM* 03 35 59.6991613260 -44 30 45.730830569 16.22 14.98 13.07 11.45 9.47 M5.5V 145 0
24 LP 944-20 LM* 03 39 35.2523500210 -35 25 43.641996333     18.69 16.39 13.288 M9.5Ve 308 0
25 Wolf 1288 LM* 03 48 03.5071974792 +23 44 18.082255344   15.42 13.94 13.57   M7.5V 16 0
26 2MASSI J0415195-093506 BD* 04 15 19.54368 -09 35 06.6732           T8.0 182 0
27 2MASSI J0423485-041403 BD* 04 23 48.5763811987 -04 14 03.246502948           L6.5+T2 137 0
28 2MASS J04510093-3402150 BD* 04 51 00.9451841616 -34 02 14.908896132           L0.5 27 0
29 HD 33793 PM* 05 11 40.5898395497 -45 01 06.361734876 11.624 10.433 8.853 7.9 6.899 M1VIp 367 0
30 2MASS J05325346+8246465 BD* 05 32 54.4345118405 +82 46 45.161005926           esdL7 65 0
31 SIPS J0539-0059 BD* 05 39 52.0040375405 -00 59 01.491092352           L5V 95 0
32 2MASS J05591914-1404488 BD* 05 59 19.1872549354 -14 04 49.206913185           T4.5 159 0
33 HD 42581 PM* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 544 0
34 Ross 614 ** 06 29 23.3915175239 -02 48 48.803911021 13.942 12.816 11.102 10.796 8.05 M4.5V 368 0
35 2MASS J06523073+4710348 BD* 06 52 30.7182715296 +47 10 34.926594456           L5.0 50 0
36 G 109-35 PM* 06 59 28.8164986147 +19 20 55.857870053   16.78   10.6   M5.0Ve 98 0
37 2MASS J07171626+5705430 BD* 07 17 16.2669618792 +57 05 43.097883000           L3 21 0
38 2MASSI J0727182+171001 BD* 07 27 18.24600 +17 10 01.2072           T7.0 104 0
39 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
40 LSPM J0746+2000 BD* 07 46 42.56207 +20 00 32.1839       17.9 15.034 L0+L1.5 201 1
41 2MASSI J0755480+221218 BD* 07 55 47.95488 +22 12 16.9416           T5.2 37 0
42 2MASSI J0825196+211552 BD* 08 25 19.6125672818 +21 15 51.549358145       21.97 19.22 L7.5V 138 0
43 G 51-15 PM* 08 29 49.3527921926 +26 46 33.624143059   16.87   14.736   M6.5Ve 326 0
44 LP 485-17 LM* 08 30 32.5703419103 +09 47 15.441013218   20.2 19.063 17.160 14.774 M7.5Ve 39 1
45 2MASS J08354256-0819237 BD* 08 35 42.5314423948 -08 19 23.372129099           L6.5 81 0
46 SDSS J083717.21-000018.0 BD* 08 37 17.192664 -00 00 20.67084           T1 57 0
47 LP 666-9 BD* 08 53 36.1604798120 -03 29 32.197505547     18.959 16.781 14.487 M9Ve 274 1
48 2MASS J08575849+5708514 BD* 08 57 58.4721442289 +57 08 51.414025854           L7V 57 0
49 2MASS J09083803+5032088 BD* 09 08 38.0091771633 +50 32 08.205341214           L8 54 0
50 * pi.01 Cnc C BD* 09 12 14.69112 +14 59 39.6240           L8.5+L7.5 61 1
51 * 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
52 2MASS J09261537+5847212 BD* 09 26 15.37752 +58 47 21.2280           T3.5+T5 39 0
53 2MASSI J0937347+293142 BD* 09 37 34.87968 +29 31 40.9908           T6 99 1
54 2MASS J10170754+1308398 BD* 10 17 07.5535371936 +13 08 39.784300548         17.418 L1.5+L3 34 0
55 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
56 2MASS J10210969-0304197 BD* 10 21 09.69240 -03 04 19.7904           T1+T4 79 0
57 L 143-23 PM* 10 44 21.2329114167 -61 12 35.275360415   15.74 13.920 12.33 10.31 M5.5V 77 0
58 2MASSW J1047539+212423 BD* 10 47 53.85456 +21 24 23.4684           T6.5 98 0
59 LP 731-58 PM* 10 48 12.6142508200 -11 20 09.610693470     15.784 16.01 11.25 M6.5V 198 0
60 DENIS J104814.6-395606 LM* 10 48 14.5736104113 -39 56 06.842743867     17.532 15.051 12.67 M8.5Ve: 141 0
61 Wolf 359 PM* 10 56 28.9208702274 +07 00 53.003285286 16.706 15.541 13.507 11.684 9.507 dM6 775 0
62 DENIS J105855.9-154814 BD* 10 58 55.906 -15 48 14.63         16.41 L3 1 0
63 HD 95735 PM* 11 03 20.1948195942 +35 58 11.576182057 10.030 8.960 7.520 5.99 4.79 M2+V 795 0
64 BD+44 2051 PM* 11 05 28.5769490063 +43 31 36.386948721 11.440 10.270   7.9   M1.0V 368 0
65 BD+44 2051B PM* 11 05 30.8855820790 +43 31 17.885197587   16.45 14.45 13.4   M6.0V 279 0
66 2MASS J11101001+0116130 BD* 11 10 10.01064 +01 16 13.0872           T5.5 86 0
67 Ross 128 PM* 11 47 44.3972681420 +00 48 16.400337591 14.223 12.905 11.153 9.859 8.184 dM4 484 0
68 2MASS J11553952-3727350 BD* 11 55 39.5361849740 -37 27 35.503012522           L2e 47 0
69 2MASS J12043036+3212595 BD* 12 04 30.3584978184 +32 12 59.523701148           L0e 29 0
70 2MASS J12171110-0311131 BD* 12 17 11.10288 -03 11 13.1748           T7.5 92 0
71 V* GL Vir PM* 12 18 59.3997287457 +11 07 33.773236317   15.68 13.90 13.55   M4.5Ve 191 0
72 2MASS J12255432-2739466 BD* 12 25 54.32328 -27 39 46.6776           T5.5+T8 67 0
73 Wolf 424 ** 12 33 17.361480 +09 01 15.79224 15.398 14.313 12.467 10.937 8.988 M5.5V 329 0
74 2MASS J12373919+6526148 BD* 12 37 39.19632 +65 26 14.8092           T6.5 85 0
75 2MASS J12545393-0122474 BD* 12 54 53.9040607346 -01 22 47.399401142           T2e: 167 0
76 2MASSI J1300425+191235 BD* 13 00 42.5082106014 +19 12 34.598653499         15.9 L1.7V 64 0
77 NAME Kelu-1 BD* 13 05 40.1642434199 -25 41 05.712165150         16.85 L2+L3.5 267 0
78 2MASS J13314894-0116500 BD* 13 31 48.9202570553 -01 16 51.118063680           L6V 46 0
79 2MASS J13464634-0031501 BD* 13 46 46.34496 -00 31 50.1312           T6 86 0
80 LP 271-25 LM* 14 28 43.2275214164 +33 10 39.259309081   21.2   17.8   M9Ve 262 0
81 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
82 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 145 0
83 LP 914-54 PM* 14 56 38.2634715567 -28 09 48.619153485     17.141 14.863 12.433 M7.0Ve 167 0
84 GJ 570 D BD* 14 57 14.96256 -21 21 47.7504           T8 242 1
85 2MASSW J1506544+132106 BD* 15 06 54.3299045806 +13 21 06.039351151           L3 116 0
86 2MASSW J1507476-162738 BD* 15 07 47.6758255542 -16 27 40.113982846     22.136 18.928 16.579 L5V 216 0
87 2MASSW J1515008+484742 BD* 15 15 00.8530443491 +48 47 41.289697100           L6.5 73 0
88 2MASSI J1526140+204341 BD* 15 26 14.0097630623 +20 43 40.439684259           L5 46 0
89 2MASSI J1534498-295227 BD* 15 34 49.84080 -29 52 27.4188           T4.5+T5 73 0
90 2MASS J15394189-0520428 BD* 15 39 41.9238250231 -05 20 42.754120152         17.47 L4.2V 48 1
91 2MASSI J1546271-332511 BD* 15 46 27.18600 -33 25 11.1828           T5.7 34 1
92 2MASS J15530228+1532369 BD* 15 53 02.28072 +15 32 36.9132           T6.5+T7.5 63 0
93 2MASS J15551573-0956055 BD* 15 55 15.7761996222 -09 56 06.039719833           L1.6V 40 0
94 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 162 0
95 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 365 0
96 2MASS J16322911+1904407 BD* 16 32 29.11416 +19 04 40.7136       22.42 19.98 L8V 145 0
97 2MASS J16452211-1319516 BD* 16 45 22.0921435313 -13 19 52.257875238           L1.5 46 0
98 VB 8 LM* 16 55 35.2557374336 -08 23 40.753073075   18.7 16.916 14.566 12.24 M7Ve 457 0
99 2MASSI J1721039+334415 BD* 17 21 03.6331191396 +33 44 16.932522500           L5.3:V 49 0
100 2MASSW J1728114+394859 BD* 17 28 11.50056 +39 48 59.3100           L5+L6.5 65 0
101 CD-46 11540 LM* 17 28 39.9455781571 -46 53 42.688095874 12.177 10.973 9.407 8.337 7.006 M3V 300 1
102 BD+68 946 PM* 17 36 25.8993094605 +68 20 20.909627174 11.73 10.65   8.3   M3.0V 345 0
103 2MASS J17503293+1759042 BD* 17 50 32.93832 +17 59 04.2504           T3.5 56 0
104 NAME Barnard's star BY* 17 57 48.4984700685 +04 41 36.113879676 12.497 11.24 9.511 8.298 6.741 M4V 907 2
105 LSR J1835+3259 PM* 18 35 37.8801226673 +32 59 53.316099140   20.0   17.1   M8.5V 160 0
106 HD 173739 PM* 18 42 46.7043860406 +59 37 49.409446059   10.43 8.93     M3V 427 1
107 HD 173740 PM* 18 42 46.8946714770 +59 37 36.721161413   11.32 9.78     M3.5V 381 1
108 CD-23 14742 PM* 18 49 49.3637762005 -23 50 10.447375350 13.528 12.19 10.43 10.23 7.703 M3.5Ve 421 0
109 G 208-44 Er* 19 53 54.4821159649 +44 24 51.341564299   15.31 13.126 13.083 9.78 M5.5Ve 220 1
110 G 208-45 LM* 19 53 55.1405033909 +44 24 54.147256052   15.97 13.99 14.3 10.27 M6V 205 0
111 2MASS J20282035+0052265 BD* 20 28 20.3489639184 +00 52 26.588682516           L2.5 43 0
112 2MASS J21041491-1037369 BD* 21 04 14.9650401063 -10 37 37.351594861           L2 58 0
113 V* AX Mic PM* 21 17 15.2690680973 -38 52 02.503938581   8.06 6.68     M1V 249 0
114 HD 204961 PM* 21 33 33.9751191976 -49 00 32.399427028 11.359 10.176 8.672 7.665 6.479 M1.5V 336 1
115 * eps Ind B BD* 22 04 10.5951812451 -56 46 58.239102418     24.12 20.8 15.60 T1V+T6V 176 1
116 2MASSW J2224438-015852 BD* 22 24 43.8544128559 -01 58 53.284975671           L4.5V 150 0
117 HD 239960A PM* 22 27 59.5575482946 +57 41 42.080559778   11.82 11.41     M3V 48 0
118 HD 239960B Er* 22 27 59.7956021455 +57 41 49.746752678           M4V 181 0
119 V* EZ Aqr Er* 22 38 33.576000 -15 17 59.75700 15.762 14.33 12.38 12.12 8.677 M5V 320 1
120 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1106 1
121 2MASSI J2254188+312349 BD* 22 54 18.92016 +31 23 49.8300           T5.0 80 0
122 HD 217987 PM* 23 05 52.0357857091 -35 51 11.055185039   8.83 7.39     M2V 320 0
123 2MASSI J2339101+135230 BD* 23 39 10.25160 +13 52 28.4772           T5.4 32 0
124 Ross 248 BY* 23 41 55.0363002516 +44 10 38.818911116   14.19   11.1   M5.0V 361 0
125 2MASSI J2356547-155310 BD* 23 56 54.77040 -15 53 11.1336           T5.8 48 0

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