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 - 2024 		#notes
1 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1357 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4416 0
3 NAME Upper Sco Association As* 16 12 -23.4           ~ 1369 1
4 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1330 1
5 DoAr 13 Em* 16 20 39.6102250512 -26 34 28.360665804   15.7       M2 10 0
6 RX J1620.7-2348 TT* 16 20 45.9589363608 -23 48 20.906432316           ~ 23 0
7 CD-23 12851 Ro* 16 20 57.8679321984 -23 52 34.437577440   11.22 10.39   9.451 G9IV 16 0
8 2MASS J16211450-2342200 TT* 16 21 14.5033224912 -23 42 20.061081036     13.52 12.51 11.52 ~ 9 0
9 HD 147196 Be* 16 21 19.1910323616 -23 42 28.738330020 7.04 7.21 7.04     B6.5V 101 0
10 2MASS J16212844-2312110 TT* 16 21 28.4528333328 -23 12 11.126305332     13.79 12.67 11.54 ~ 15 0
11 VSS II-137 TT* 16 21 28.8145851936 -23 32 38.940611100     11.87 11.03 10.15 F 13 0
12 Haro 1-1 Or* 16 21 34.7045923320 -26 12 26.913018060   14.59       K5e 60 0
13 V* V935 Sco Or* 16 22 18.5331624192 -23 21 48.146194512   13.6 12.67     K4 42 0
14 UCAC4 321-085317 Em* 16 22 22.3189412472 -25 52 20.029575972   17.3   14.743 12.07 ~ 12 0
15 2MASS J16222442-2450188 AB* 16 22 24.4291192176 -24 50 18.859387812           M5 10 0
16 2MASS J16223757-2345508 TT* 16 22 37.5358052424 -23 45 50.415695460     16.04 14.45 12.98 ~ 16 0
17 RX J1622.7-2431 Y*O 16 22 45.410832 -24 31 24.09420           M3 27 0
18 RX J1622.7-2325 TT* 16 22 46.809 -23 25 33.11     15.71 13.80 12.11 ~ 12 0
19 2MASS J16225336-2333101 TT* 16 22 53.2925463816 -23 33 10.117157076     16.36 14.73 13.26 ~ 14 0
20 2MASS J16225985-2326348 Y*? 16 22 59.8103187936 -23 26 34.941059916           K8 19 0
21 CD-22 11523 Or* 16 23 07.8224200992 -23 00 59.996370852   13.10 11.85 11.71 10.290 K5 39 0
22 BKLT J162312-243640 AB* 16 23 12.5552541840 -24 36 41.466278052           M2 12 0
23 CD-25 11492 TT* 16 23 32.3393794128 -25 23 48.613415964   12.19 11.59     K2.0e 30 0
24 2MASS J16234940-2341272 TT* 16 23 49.3485475008 -23 41 26.945232288     14.73 13.42 12.12 ~ 8 0
25 RX J1624.0-2456 TT* 16 24 06.335736 -24 56 46.98420   14.55 13.00 12.93 10.58 K3IVe 16 0
26 ATO J246.0661-24.4599 TT* 16 24 15.8722180632 -24 27 35.302904208     15.47 14.12 12.71 ~ 14 0
27 BKLT J162441-241751 Y*O 16 24 41.0528524032 -24 17 48.921426996       17.2 15.15 M1-M3 8 0
28 BKLT J162446-242223 Y*O 16 24 46.8125416656 -24 22 21.178663176       15.47 13.61 K6-M0 8 0
29 2MASS J16244839-2359160 TT* 16 24 48.3950091768 -23 59 16.067043384           ~ 12 0
30 BKLT J162457-241127 TT* 16 24 57.3035531928 -24 11 24.260006796       15.63 13.71 M3.5 13 0
31 WSB 18 TT* 16 24 59.74128 -24 56 00.8340   18.9   15.71 13.78 M2.5-M4.5 38 0
32 IRAS 16220-2452 TT* 16 25 02.115744 -24 59 32.40528       14.64 13.12 M3-M5.5 43 0
33 ATO J246.2787-23.8474 Y*O 16 25 06.9166702512 -23 50 50.347017132           M3 20 0
34 BKLT J162512-243707 Y*O 16 25 11.8972774464 -24 37 08.281100208       16.57 14.78 K5-K6 7 0
35 2MASS J16251469-2456069 TT* 16 25 14.7075891120 -24 56 07.069680960     14.41 13.05 11.75 K7 24 0
36 CD-24 12683 TT* 16 25 19.2498737256 -24 26 52.809731340   11.36 10.55   9.05 G9V 48 0
37 2MASS J16252243-2402056 TT* 16 25 22.4427264840 -24 02 05.904499740     16.02 14.45 12.84 ~ 17 0
38 HD 147889 Y*O 16 25 24.3163637976 -24 27 56.569805208 8.56 8.73 7.90     B2V 476 1
39 EM* SR 22 Or* 16 25 24.3512329440 -24 29 44.379021480       14.52 12.88 M0e 65 0
40 ATO J246.3514-23.9197 TT* 16 25 24.3632877288 -23 55 10.614768528   17.03 15.39     ~ 30 0
41 2MASS J16252612-2401058 Y*O 16 25 26.1306333408 -24 01 06.049435152       16.35 14.50 K7-M0 6 0
42 EM* SR 8 TT* 16 25 26.8721839416 -24 43 09.010607844   15.58 13.80 12.61 11.47 K2 22 0
43 EM* SR 6 TT* 16 25 28.6309294272 -23 46 26.395661496   13.24 12.08 11.37 10.53 K2IV 19 0
44 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 648 0
45 YLW 19 Y*O 16 25 36.7381317840 -24 15 42.526380780   17.8 16.4 14.94 13.36 K3-K5 48 0
46 IRAS 16226-2420 TT* 16 25 39.58128 -24 26 34.9116       16.78 14.84 M2 47 0
47 ROX 3 Or* 16 25 49.6474658424 -24 51 31.947148440     13.10 12.10 11.13 M0e 50 0
48 WLY 2-10 TT* 16 25 50.5247210760 -24 39 14.565244608     15.49 13.83 12.30 K5.5 38 0
49 BKLT J162550-244733 Y*O 16 25 50.5614318768 -24 47 35.872760976       14.89 13.47 G9-K0 11 0
50 EM* SR 5 TT* 16 25 55.8341340336 -23 55 10.314211224   14.0 13.72 12.52 11.51 ~ 18 0
51 EM* SR 4 Or* 16 25 56.1659023848 -24 20 48.240627072     12.80 11.7 10.7 K0:Ve 186 1
52 GSS 20 TT* 16 25 57.5183458272 -24 30 31.792496832     16.37 14.77 13.05 K5.5 51 0
53 Haro 1-6 Or* 16 26 03.0276684144 -24 23 36.188140848   14.15 14.01 12.38 10.80 K0 217 2
54 VSSG 19 TT* 16 26 03.2977778400 -24 17 46.536135468     16.49 14.86 13.00 M2 34 0
55 EM* SR 3 Y*O 16 26 09.3229222944 -24 34 12.172009728   10.9 9.88   9.01 A0 116 0
56 GSS 26 Y*O 16 26 10.33152 -24 20 54.8232           M0 84 1
57 GSS 29 TT* 16 26 16.8561896376 -24 22 23.150221356       17.4 15.23 K5-K6 84 1
58 DoAr 24 TT* 16 26 17.0743951968 -24 20 21.594730920   16.06 14.21 14.02 11.57 K7.5V 112 1
59 RX J1626.3-2407 TT* 16 26 18.7877364192 -24 07 19.005442068       14.86 13.06 M3.5 23 0
60 BKLT J162620-240854 TT* 16 26 20.9876547816 -24 08 51.872620308     16.52 14.87 13.11 M2 33 0
61 GSS 31 TT* 16 26 23.3684537424 -24 20 59.579380248   15.9 14.70 14.33 11.53 K0e 143 1
62 DoAr 25 TT* 16 26 23.6911292736 -24 43 13.888543800       12.65   K5 166 0
63 GSS 32 TT* 16 26 24.0509462472 -24 24 48.095495928       17.81 15.58 K5-K6 103 1
64 Elia 2-24 TT* 16 26 24.0886188024 -24 16 13.448569260   16.3 14.40 15.81 13.97 K6 165 1
65 WSB 32 LP? 16 26 27.7525953384 -25 27 24.652391652   16.59 15.60   12.90 M1V 25 0
66 ROXs 12 Y*O 16 26 28.0396675056 -25 26 47.717480112   16.13 14.29 14.06 12.05 M0.0e 32 0
67 ROXs 12B BD* 16 26 28.05 -25 26 46.0           L0 25 0
68 GSS 35 TT* 16 26 34.1761719864 -24 23 28.283473860     16.53 14.75 12.51 B3 236 1
69 GSS 37 TT* 16 26 42.85416 -24 20 29.8608       16.29 14.08 K7-M2 83 1
70 BKLT J162643-241112 TT* 16 26 43.1188173648 -24 11 09.460515264       14.83 13.30 K8 19 0
71 GSS 39 Y*O 16 26 45.0318401664 -24 23 07.793180124           M0 199 1
72 YLW 37 TT* 16 26 46.4288834880 -24 12 00.078675192   17.15   13.90 12.37 G3.5 61 0
73 WSB 40 TT* 16 26 48.6589514568 -23 56 34.141257060       14.45 12.92 K5.5 37 0
74 VSSG 3 Y*O 16 26 49.2314977008 -24 20 03.429427200           ~ 46 1
75 BKLT J162656-241353 TT* 16 26 56.7836190744 -24 13 51.537326592       18.46 16.29 K7 33 0
76 EM* SR 24B TT* 16 26 58.4361499704 -24 45 32.224542876           M0.5e 90 0
77 EM* SR 24A TT* 16 26 58.5134422944 -24 45 36.722580480       14.15 12.87 K1 106 0
78 WL 16 Y*O 16 27 02.33520 -24 37 27.2316           A0-F3 157 0
79 WL 10 Or* 16 27 09.1062090672 -24 34 08.278196304           K9 72 0
80 Elia 2-29 Y*O 16 27 09.43032 -24 37 18.7716           ~ 283 1
81 EM* SR 21A TT* 16 27 10.2778380120 -24 19 12.622467720   16.08 14.10     G1 271 1
82 BKLT J162715-245137 TT* 16 27 15.1289055168 -24 51 38.814347988   16.9 15.02 13.86 12.38 M2 67 1
83 2MASS J16271781-2358454 LP* 16 27 17.8111618080 -23 58 45.517039608       14.82 13.20 K7-K8 7 0
84 EM* SR 12 Or* 16 27 19.5054789229 -24 41 40.414828505     13.28 12.15 10.855 M0IVe 183 1
85 YLW 13B Y*O 16 27 21.46872 -24 41 43.0692           ~ 91 0
86 VSSG 22 Or* 16 27 22.9174580712 -24 17 57.414656688           ~ 36 1
87 Elia 2-31 TT* 16 27 27.3786513768 -24 31 16.442242464           ~ 71 1
88 Elia 2-33 Y*O 16 27 30.18024 -24 27 43.3656           M2 117 1
89 YLW 18 TT* 16 27 33.1157754648 -24 41 15.259932924       17.66 15.65 K5-K6 76 0
90 2MASS J16273714-2359330 Y*O 16 27 37.1551406112 -23 59 33.068334948           ~ 12 0
91 IRAS 16245-2423 TT* 16 27 37.1906433768 -24 30 35.025246828       16.66 14.67 B5-F2 307 0
92 YLW 47 TT* 16 27 38.3206405584 -24 36 58.594880844       17.69 15.52 M0 94 0
93 Haro 1-11 TT* 16 27 38.3295904392 -23 57 32.512870116   17.3   13.66 12.30 K6 41 1
94 ATO J246.9097-24.0671 TT* 16 27 38.3421648792 -24 04 01.327513872       14.99 13.41 K5-K6 19 0
95 DoAr 33 TT* 16 27 39.0123517344 -23 58 18.709495500   15.7   13.24 12.02 K4 70 0
96 ROX 27 TT* 16 27 39.4295731464 -24 39 15.527230272       15.76 14.03 M0+M4 111 0
97 YLW 45 Y*O 16 27 39.82824 -24 43 15.0672           ~ 115 0
98 CD-24 12689 Or* 16 27 40.2857881416 -24 22 04.130226300   12.91 11.533 11.11 10.00 K5e 283 0
99 Elia 2-36 TT* 16 27 49.8764029464 -24 25 40.232849484       13.69 12.19 A7 69 0
100 WLY 2-55 TT* 16 27 52.0872222936 -24 40 50.723707476     16.28 14.48 12.78 K7.5 81 0
101 EM* SR 10 Or* 16 27 55.5811084704 -24 26 18.029534748   15.23 14.19 13.91 11.95 M1.5e 79 0
102 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3631 1
103 ISO-Oph 195 TT* 16 28 16.7370297600 -24 05 14.436020040       15.59 13.91 K5-K6 42 0
104 NAME EM* SR 20W TT* 16 28 23.3448796920 -24 22 40.668069288     15.79 16.29 14.60 K5 39 0
105 HD 148352 Y*O 16 28 25.1695251528 -24 45 01.016932824   7.89 7.55     F2V 53 0
106 EM* SR 20 Or* 16 28 32.6876536896 -24 22 45.008526648   16.23   12.59   G7 82 0
107 EM* SR 13 Or* 16 28 45.2768168328 -24 28 18.905579112     13.60 12.40 10.9 M2e 133 0
108 BKLT J162854-244743 TT* 16 28 54.0781293792 -24 47 44.285434800   17.3   15.24 13.54 M2 44 0
109 2MASS J16293397-2455303 TT* 16 29 33.9782062176 -24 55 30.455016924     12.44 11.61 10.79 K1IV 15 0
110 CD-24 12692 TT* 16 29 34.4167485720 -24 52 29.412156108   11.19 10.75 10.54 10.18 G5 17 0
111 NTTS 162645-2434 TT* 16 29 44.286936 -24 41 21.84000   16.46 15.01 13.07   M5e 17 0
112 HD 148562 TT* 16 29 54.5953266552 -24 58 46.075015272 8.08 7.99 7.81     A2V 65 0
113 2MASS J16303563-2434188 TT* 16 30 35.6378666880 -24 34 18.704660484   12.5 12.90 11.85 10.76 ~ 33 0
114 CoKu Haro 1-14 c Or* 16 31 04.3604585856 -24 04 33.304117764   13.76 12.35 12.14   K4IVe 29 0
115 Haro 1-14 Or* 16 31 05.1623543808 -24 04 40.307366316       14.04   ~ 53 0
116 ROXs 42B TT* 16 31 15.0183260016 -24 32 43.715044896     14.27 13.03 11.72 M0 58 0
117 V* V2131 Oph Or* 16 31 15.7445171496 -24 34 02.161097472   12.0 12.05 11.06 10.13 ~ 96 0
118 ROXs 43A TT* 16 31 20.1191847456 -24 30 05.057116128   11.89 10.93     G5IVe 48 0
119 ROXs 43B TT* 16 31 20.1894501240 -24 30 00.688079088   13.71 12.39     K3e 27 0
120 Haro 1-16 Or* 16 31 33.4634997336 -24 27 37.158728076   14.02 12.80     K3e 224 0
121 IRAS 16289-2457 Y*O 16 31 54.7465284384 -25 03 24.085891512           M 33 0
122 2MASS J16315768-2529336 TT* 16 31 57.6871279704 -25 29 33.733979736     14.72 13.66 12.65 ~ 7 0
123 DoAr 49 Or* 16 32 00.5941488216 -25 30 28.789172136   13.6 13.02 12.19 11.43 K7IVe 18 0
124 DoAr 50 Or* 16 32 01.6151945400 -25 30 25.389788652     12.421 12.19 10.712 K5IVe 23 0
125 DoAr 51 Or* 16 32 11.7949720728 -24 40 21.640407420   13.89 13.65 12.43 11.025 K8IVe 66 0
126 2MASS J16324437-2332127 PM* 16 32 44.3809432080 -23 32 12.772748760           M2.75V 6 0
127 2MASS J16335560-2442049 Y*O 16 33 55.6148566800 -24 42 05.002391016           K7 51 0
128 2MASS J16360395-2423445 AB* 16 36 03.9598982904 -24 23 44.457248184           M4 7 0
129 2MASS J16361687-2420345 TT* 16 36 16.8778464744 -24 20 34.475318988           ~ 8 0

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