2015ApJ...813...83C


Query : 2015ApJ...813...83C

2015ApJ...813...83C - Astrophys. J., 813, 83 (2015/November-2)

Mapping the shores of the brown dwarf desert. IV. Ophiuchus.

CHEETHAM A.C., KRAUS A.L., IRELAND M.J., CIEZA L., RIZZUTO A.C. and TUTHILL P.G.

Abstract (from CDS):

We conduct a multiplicity survey of members of the ρ Ophiuchus cloud complex with high-resolution imaging to characterize the multiple-star population of this nearby star-forming region and investigate the relation between stellar multiplicity and star and planet formation. Our aperture masking survey reveals the presence of five new stellar companions beyond the reach of previous studies, but does not result in the detection of any new substellar companions. We find that 43±6% of the 114 stars in our survey have stellar-mass companions between 1.3 and 780 AU, while% host brown dwarf companions in the same interval. By combining this information with knowledge of disk-hosting stars, we show that the presence of a close binary companion (separation <40 AU) significantly influences the lifetime of protoplanetary disks, a phenomenon previously seen in older star-forming regions. At the ∼1-2 Myr age of our Ophiuchus members ∼2/3 of close binary systems have lost their disks, compared to only ∼30% of single stars and wide binaries. This has a significant impact on the formation of giant planets, which are expected to require much longer than 1 Myr to form via core accretion and thus planets formed via this pathway should be rare in close binary systems.

Abstract Copyright:

Journal keyword(s): binaries: general - brown dwarfs - stars: low-mass - stars: pre-main sequence

VizieR on-line data: <Available at CDS (J/ApJ/813/83): table1.dat table3.dat table4.dat>

Simbad objects: 129

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Number of rows : 129
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1265 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3791 0
3 NAME Upper Sco Association As* 16 12 -23.4           ~ 1130 1
4 NAME ASSOC II SCO As* 16 15 -24.2           ~ 1194 1
5 DoAr 13 Em* 16 20 39.6103416550 -26 34 28.361047491   15.7       M2 7 0
6 RX J1620.7-2348 TT* 16 20 45.9586954438 -23 48 20.906803470           ~ 21 0
7 CD-23 12851 Ro* 16 20 57.8677226657 -23 52 34.437736917   11.22 10.39   9.451 G9IV 15 0
8 2MASS J16211450-2342200 TT* 16 21 14.5035129131 -23 42 20.057486265     13.52 12.51 11.52 ~ 7 0
9 HD 147196 Be* 16 21 19.1910661422 -23 42 28.739826827 7.04 7.21 7.04     B5/8Vn 93 0
10 2MASS J16212844-2312110 TT* 16 21 28.4529787706 -23 12 11.125752240     13.79 12.67 11.54 ~ 12 0
11 VSS II-137 TT* 16 21 28.8133227115 -23 32 38.962807951     11.87 11.03 10.15 F 13 0
12 Haro 1-1 Or* 16 21 34.7046243951 -26 12 26.914958774   14.59       K5e 57 0
13 V* V935 Sco Or* 16 22 18.5324260467 -23 21 48.141951472   13.6 12.67     M: 34 0
14 UCAC4 321-085317 Em* 16 22 22.3184723165 -25 52 20.027245077   17.3   14.743 12.07 ~ 9 0
15 2MASS J16222442-2450188 AB* 16 22 24.4308223130 -24 50 18.869911947           M5 8 0
16 2MASS J16223757-2345508 TT* 16 22 37.5361452134 -23 45 50.416161409     16.04 14.45 12.98 ~ 13 0
17 2MASS J16224539-2431237 TT? 16 22 45.4062400689 -24 31 24.499254454           M3 23 0
18 RX J1622.7-2325 TT* 16 22 46.809 -23 25 33.11     15.71 13.80 12.11 ~ 11 0
19 2MASS J16225336-2333101 TT* 16 22 53.2900401081 -23 33 10.156573494     16.36 14.73 13.26 ~ 13 0
20 2MASS J16225985-2326348 Y*? 16 22 59.8105449549 -23 26 34.938004574           K8 15 0
21 CD-22 11523 Or* 16 23 07.8222126846 -23 00 59.994661616   13.10 11.85 11.71 10.290 K5 32 0
22 BKLT J162312-243640 AB* 16 23 12.5553210241 -24 36 41.469484483           M2 9 0
23 CD-25 11492 TT* 16 23 32.3391636687 -25 23 48.609592972   12.19 11.59     K2.0e 25 0
24 2MASS J16234940-2341272 TT* 16 23 49.3484677459 -23 41 26.944116859     14.73 13.42 12.12 ~ 7 0
25 RX J1624.0-2456 TT* 16 24 06.335736 -24 56 46.98420   14.55 13.00 12.93 10.58 K3IVe 13 0
26 2MASS J16241586-2427352 TT* 16 24 15.8727043644 -24 27 35.301754697     15.47 14.12 12.71 ~ 12 0
27 BKLT J162441-241751 Y*O 16 24 41.0536634155 -24 17 48.928326066       17.2 15.15 M1-M3 7 0
28 BKLT J162446-242223 Y*O 16 24 46.8135096837 -24 22 21.180989443       15.47 13.61 K6-M0 6 0
29 2MASS J16244839-2359160 TT* 16 24 48.3962916740 -23 59 16.075791371           ~ 10 0
30 BKLT J162457-241127 TT* 16 24 57.3032338376 -24 11 24.256858793       15.63 13.71 M3.5 11 0
31 WSB 18 TT* 16 24 59.74128 -24 56 00.8340   18.9   15.71 13.78 M2.5-M4.5 29 0
32 IRAS 16220-2452 TT* 16 25 02.115744 -24 59 32.40528       14.64 13.12 M3-M5.5 38 0
33 2MASS J16250692-2350502 Y*O 16 25 06.9167704836 -23 50 50.349140945           M3 16 0
34 BKLT J162512-243707 Y*O 16 25 11.8978677482 -24 37 08.288052453       16.57 14.78 K5-K6 3 0
35 2MASS J16251469-2456069 TT* 16 25 14.7078336822 -24 56 07.069271136     14.41 13.05 11.75 K7 18 0
36 CD-24 12683 TT* 16 25 19.2425081811 -24 26 52.724827900   11.36 10.55   9.05 G9V 43 0
37 2MASS J16252243-2402056 TT* 16 25 22.4428048765 -24 02 05.906365203     16.02 14.45 12.84 ~ 12 0
38 HD 147889 Y*O 16 25 24.3162969787 -24 27 56.570239619 8.56 8.73 7.90     B2III/IV 449 1
39 EM* SR 22 Or* 16 25 24.3511816371 -24 29 44.380737012       14.52 12.88 M0e 60 0
40 ATO J246.3514-23.9197 TT* 16 25 24.3567454098 -23 55 11.011537196   17.03 15.39     ~ 30 0
41 2MASS J16252612-2401058 Y*O 16 25 26.1315256188 -24 01 06.058084369       16.35 14.50 K7-M0 2 0
42 EM* SR 8 TT* 16 25 26.8721119462 -24 43 09.009218047   15.58 13.80 12.61 11.47 K2 20 0
43 EM* SR 6 TT* 16 25 28.6307787781 -23 46 26.392600157   13.24 12.08 11.37 10.53 K2IV 18 0
44 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 624 0
45 YLW 19 Y*O 16 25 36.7376373343 -24 15 42.528646400   17.8 16.4 14.94 13.36 K3-K5 43 0
46 IRAS 16226-2420 TT* 16 25 39.5828608249 -24 26 34.889477995       16.78 14.84 M2 39 0
47 ROX 3 Or* 16 25 49.6474242025 -24 51 31.945724582     13.10 12.10 11.13 M0e 47 0
48 WLY 2-10 TT* 16 25 50.5249510923 -24 39 14.568017391     15.49 13.83 12.30 K5.5 35 0
49 BKLT J162550-244733 Y*O 16 25 50.5616657496 -24 47 35.875753604       14.89 13.47 G9-K0 6 0
50 EM* SR 5 TT* 16 25 55.8455039723 -23 55 10.347098997   14.0 13.72 12.52 11.51 ~ 18 0
51 EM* SR 4 Or* 16 25 56.1659484606 -24 20 48.239269835     12.80 11.7 10.7 K0:Ve 162 1
52 GSS 20 TT* 16 25 57.5191102746 -24 30 31.791765578     16.37 14.77 13.05 K5.5 49 0
53 Haro 1-6 Or* 16 26 03.0281201322 -24 23 36.193999164   14.15 14.01 12.38 10.80 K0 210 2
54 VSSG 19 TT* 16 26 03.2984499033 -24 17 46.540322174     16.49 14.86 13.00 M2 32 0
55 EM* SR 3 Y*O 16 26 09.3231207767 -24 34 12.176811236   10.9 9.88   9.01 A0 110 0
56 GSS 26 Y*O 16 26 10.33152 -24 20 54.8232           M0 76 1
57 GSS 29 TT* 16 26 16.8584457266 -24 22 23.154122364       17.4 15.23 K5-K6 79 1
58 DoAr 24 TT* 16 26 17.0747576971 -24 20 21.594542024   16.06 14.21 14.02 11.57 K7.5V 103 1
59 RX J1626.3-2407 TT* 16 26 18.7882334795 -24 07 19.002771724       14.86 13.06 M3.5 17 0
60 BKLT J162620-240854 TT* 16 26 20.9883194977 -24 08 51.870701161     16.52 14.87 13.11 M2 29 0
61 GSS 31 TT* 16 26 23.3694945462 -24 20 59.580653864   15.9 14.70 14.33 11.53 K0e 138 1
62 DoAr 25 TT* 16 26 23.6911216715 -24 43 13.886717283       12.65   K5 136 0
63 GSS 32 TT* 16 26 24.0521249616 -24 24 48.105099750       17.81 15.58 K5-K6 98 1
64 Elia 2-24 TT* 16 26 24.0896068058 -24 16 13.456681632   16.3 14.40 15.81 13.97 K6 136 1
65 WSB 32 LP? 16 26 27.7529633975 -25 27 24.650008014   16.59 15.60   12.90 M1V 22 0
66 ROXs 12 Y*O 16 26 28.0400452309 -25 26 47.716803492   16.13 14.29 14.06 12.05 M0.0e 26 0
67 ROXs 12B BD* 16 26 28.05 -25 26 46.0           L0 18 0
68 GSS 35 TT* 16 26 34.1750440278 -24 23 28.331873112     16.53 14.75 12.51 B3 227 1
69 GSS 37 TT* 16 26 42.85416 -24 20 29.8608       16.29 14.08 K7-M2 76 1
70 BKLT J162643-241112 TT* 16 26 43.1193959155 -24 11 09.461104238       14.83 13.30 K8 13 0
71 GSS 39 Y*O 16 26 45.0321556934 -24 23 07.808781522           M0 157 1
72 YLW 37 TT* 16 26 46.4318675036 -24 12 00.041276484   17.15   13.90 12.37 G3.5 54 0
73 WSB 40 TT* 16 26 48.6594317309 -23 56 34.139564007       14.45 12.92 K5.5 29 0
74 VSSG 3 Y*O 16 26 49.2334185887 -24 20 03.409036777           ~ 45 1
75 BKLT J162656-241353 TT* 16 26 56.7840840242 -24 13 51.542985458       18.46 16.29 K7 27 0
76 EM* SR 24B TT* 16 26 58.4363490468 -24 45 32.211217104           M0.5e 80 0
77 EM* SR 24A TT* 16 26 58.5027167088 -24 45 36.698300286       14.15 12.87 K1 94 0
78 WL 16 Y*O 16 27 02.33520 -24 37 27.2316           A0-F3 155 0
79 WL 10 Y*O 16 27 09.1086301538 -24 34 08.290873154           K9 66 0
80 Elia 2-29 Y*O 16 27 09.43032 -24 37 18.7716           ~ 274 1
81 EM* SR 21A TT* 16 27 10.2776332501 -24 19 12.620553212   16.08 14.10     G1 249 1
82 BKLT J162715-245137 TT* 16 27 15.1288179688 -24 51 38.809044111   16.9 15.02 13.86 12.38 M2 59 1
83 2MASS J16271781-2358454 Y*O 16 27 17.8116548574 -23 58 45.519659039       14.82 13.20 K7-K8 2 0
84 EM* SR 12 Or* 16 27 19.5054789229 -24 41 40.414828505     13.28 12.15 10.855 M0IVe 170 1
85 YLW 13B Y*O 16 27 21.46872 -24 41 43.0692           ~ 89 0
86 VSSG 22 Y*O 16 27 22.9143048814 -24 17 57.430600647           ~ 35 1
87 Elia 2-31 TT* 16 27 27.3790999869 -24 31 16.473626072           ~ 66 1
88 Elia 2-33 Y*O 16 27 30.18024 -24 27 43.3656           M2 112 1
89 YLW 18 TT* 16 27 33.1158717225 -24 41 15.261194836       17.66 15.65 K5-K6 67 0
90 2MASS J16273714-2359330 Y*O 16 27 37.1554467188 -23 59 33.066820001           ~ 8 0
91 IRAS 16245-2423 TT* 16 27 37.1911764648 -24 30 35.031583716       16.66 14.67 B5-F2 253 0
92 YLW 47 TT* 16 27 38.3220493264 -24 36 58.601739078       17.69 15.52 M0 88 0
93 Haro 1-11 TT* 16 27 38.3300429190 -23 57 32.512435252   17.3   13.66 12.30 K6 34 1
94 2MASS J16273833-2404013 TT* 16 27 38.3427098305 -24 04 01.330392016       14.99 13.41 K5-K6 14 0
95 DoAr 33 TT* 16 27 39.0127002068 -23 58 18.708241197   15.7   13.24 12.02 K4 51 0
96 ROX 27 TT* 16 27 39.4297106587 -24 39 15.527875310       15.76 14.03 M0+M4 98 0
97 YLW 45 Y*O 16 27 39.82824 -24 43 15.0672           ~ 111 0
98 EM* SR 9 Or* 16 27 40.2858402419 -24 22 04.132012501   12.91 11.533 11.11 10.00 K5e 262 0
99 Elia 2-36 TT* 16 27 49.8769818907 -24 25 40.237798866       13.69 12.19 A7 67 0
100 WLY 2-55 TT* 16 27 52.0863419872 -24 40 50.713643148     16.28 14.48 12.78 K7.5 79 0
101 EM* SR 10 Or* 16 27 55.5811105202 -24 26 18.029286663   15.23 14.19 13.91 11.95 M1.5e 74 0
102 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3228 1
103 ISO-Oph 195 TT* 16 28 16.7367246915 -24 05 14.439072530       15.59 13.91 K5-K6 34 0
104 NAME EM* SR 20W TT* 16 28 23.3455227878 -24 22 40.663704708     15.79 16.29 14.60 K5 28 0
105 HD 148352 Y*O 16 28 25.1696814272 -24 45 01.022216814   7.89 7.55     F2V 47 0
106 EM* SR 20 Or* 16 28 32.6877046986 -24 22 45.009576300   16.23   12.59   G7 78 0
107 EM* SR 13 Or* 16 28 45.2753496511 -24 28 18.830243306     13.60 12.40 10.9 M2e 126 0
108 BKLT J162854-244743 TT* 16 28 54.0780963887 -24 47 44.290458611   17.3   15.24 13.54 M2 37 0
109 2MASS J16293397-2455303 TT* 16 29 33.9782295299 -24 55 30.454268155     12.44 11.61 10.79 K1IV 12 0
110 CD-24 12692 TT* 16 29 34.4167178546 -24 52 29.413553952   11.19 10.75 10.54 10.18 G5 15 0
111 NTTS 162645-2434 Y*? 16 29 44.286936 -24 41 21.84000   16.46 15.01 13.07   M5e 14 0
112 HD 148562 TT* 16 29 54.5956585494 -24 58 46.075096179 8.08 7.99 7.81     A2V 57 0
113 2MASS J16303563-2434188 TT* 16 30 35.6384908794 -24 34 18.686272053   12.5 12.90 11.85 10.76 ~ 30 0
114 CoKu Haro 1-14 c Or* 16 31 04.3574437040 -24 04 33.337296905   13.76 12.35 12.14   K4IVe 29 0
115 Haro 1-14 Or* 16 31 05.1624857597 -24 04 40.309934371       14.04   ~ 49 0
116 ROXs 42B TT* 16 31 15.0191785687 -24 32 43.717222006     14.27 13.03 11.72 ~ 51 0
117 V* V2131 Oph Or* 16 31 15.7390747430 -24 34 02.512884637   12.0 12.05 11.06 10.13 ~ 94 0
118 ROXs 43A TT* 16 31 20.1187037852 -24 30 05.059723324   11.89 10.93     G5IVe 48 0
119 ROXs 43B TT* 16 31 20.1897839440 -24 30 00.713644318   13.71 12.39     K3e 25 0
120 Haro 1-16 Or* 16 31 33.4638378966 -24 27 37.158295501   14.02 12.80     K3e 189 0
121 IRAS 16289-2457 Y*O 16 31 54.7486638903 -25 03 24.071963352           M 30 0
122 2MASS J16315768-2529336 TT* 16 31 57.6864818624 -25 29 33.732855913     14.72 13.66 12.65 ~ 7 0
123 DoAr 49 Or* 16 32 00.5941221814 -25 30 28.789411097   13.6 13.02 12.19 11.43 K7IVe 15 0
124 DoAr 50 Or* 16 32 01.6148895304 -25 30 25.390687871     12.421 12.19 10.712 K5IVe 20 0
125 DoAr 51 Or* 16 32 11.7963869069 -24 40 21.648066213   13.89 13.65 12.43 11.025 K8IVe 63 0
126 2MASS J16324437-2332127 PM* 16 32 44.3808625906 -23 32 12.772604168           M2.75V 6 0
127 2MASS J16335560-2442049 Y*O 16 33 55.6149601032 -24 42 05.006785530           K7 44 0
128 2MASS J16360395-2423445 AB* 16 36 03.9590693906 -24 23 44.451822048           M4 5 0
129 2MASS J16361687-2420345 TT* 16 36 16.8780101613 -24 20 34.476819066           ~ 7 0

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2021.10.27-21:10:55

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