2010ApJS..188...75M

Query : 2010ApJS..188...75M

2010ApJS..188...75M - Astrophys. J., Suppl. Ser., 188, 75-122 (2010/May-0)

The evolutionary state of the pre-main sequence population in Ophiuchus: a large infrared spectrograph survey.

McCLURE M.K., FURLAN E., MANOJ P., LUHMAN K.L., WATSON D.M., FORREST W.J., ESPAILLAT C., CALVET N., D'ALESSIO P., SARGENT B., TOBIN J.J. and CHIANG H.-F.

Abstract (from CDS):

Variations in molecular cloud environments have the potential to affect the composition and structure of the circumstellar disks therein. To this end, comparative analyses of nearby star-forming regions are essential to informing theoretical work. In particular, the Ophiuchus molecular clouds are ideal for comparison as they are more compact with much higher extinction than Taurus, the low-mass exemplar, and experience a moderate amount of external radiation. We have carried out a study of a collection of 136 young stellar objects in the <1 Myr old Ophiuchus star-forming region, featuring Spitzer Infrared Spectrograph spectra from 5 to 36 µm, supplemented with photometry from 0.3 µm to 1.3 mm. By classifying these objects using the McClure new molecular cloud extinction law to establish an extinction-independent index, we arrive at a ∼10% embedded objects fraction, producing an embedded lifetime of 0.2 Myr, similar to that in Taurus. We analyze the degree of dust sedimentation and dust grain processing in the disks, finding that the disks are highly settled with signs of significant dust processing even at ∼0.3 Myr. Finally, we discuss the wealth of evidence for radial gap structures which could be evidence for disk-planet interactions and explore the effects of stellar multiplicity on the degree of settling and radial structure.

Abstract Copyright: ∼

Journal keyword(s): infrared: stars - open clusters and associations: individual: rho Ophiuchi - stars: pre-main sequence

Simbad objects: 167

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Number of rows : 167
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 V* DG Tau TT* 04 27 04.6921275888 +26 06 16.060169268 13.57 13.97 10.50 12.28   K6Ve 1092 1
2 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
3 V* UX Tau A TT* 04 30 03.9932216088 +18 13 49.469925504   12.92 11.15     K2Ve 386 0
4 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 380 0
5 EM* LkCa 15 Or* 04 39 17.7911622816 +22 21 03.390090984   13.01 12.03 11.61   K5:Ve 792 1
6 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
7 CoKu Tau-Aur Star 4 TT* 04 41 16.8104181312 +28 40 00.073831728   16.40 14.68 14.59   M1.5e 187 0
8 V* DP Tau Or* 04 42 37.6989071232 +25 15 36.983641716 15.84 15.2 13.70 14.42   M0.8 179 1
9 V* DR Tau Or* 04 47 06.2151561264 +16 58 42.813872580 12.03 11.86 10.50 12.19   K5Ve 585 0
10 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
11 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 887 0
12 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
13 V* VV Sco Or* 16 15 34.56528 -22 42 42.1092     12.684   10.660 K5Ve+M0Ve 67 0
14 CD-23 12840 ** 16 18 37.2 -24 05 18           ~ 14 0
15 CD-23 12840B Or* 16 18 37.2345886920 -24 05 18.158563176         10.517 F0V 23 0
16 IRAS 16178-2501 * 16 20 50.6 -25 07 59   18.0 13.54     M 8 0
17 * sig Sco bC* 16 21 11.3157134 -25 35 34.051476 2.32 3.02 2.89 1.69 1.58 B1III+B1:V 898 0
18 IRAS 16181-2536 * 16 21 14.0 -25 43 06   16.6 14.80     M 6 0
19 IRAS 16184-2452 IR 16 21 29.8 -24 59 49           ~ 7 0
20 IRAS 16186-2534 IR 16 21 40.3 -25 42 00   18.0 16.86     ~ 4 0
21 V* V935 Sco Or* 16 22 18.5331624192 -23 21 48.146194512   13.6 12.67     K4 51 0
22 2MASS J16230923-2417047 Y*O 16 23 09.2283172152 -24 17 05.013918240   14.3 12.75     M 47 0
23 6dFGS gJ162416.4-220932 Sy2 16 24 16.3667520192 -22 09 31.572958320   15.0 15.17     ~ 13 0
24 IRAS 16220-2452 TT* 16 25 02.115744 -24 59 32.40528       14.64 13.12 M3-M5.5 47 0
25 Haro 1-4 Or* 16 25 10.508136 -23 19 14.78820       13.15   K4e 78 0
26 HD 147889 Or* 16 25 24.3163637976 -24 27 56.569805208 8.56 8.73 7.90     B2V 512 1
27 ATO J246.3514-23.9197 TT* 16 25 24.3632877288 -23 55 10.614768528   17.03 15.39     ~ 33 0
28 YLW 19 Or* 16 25 36.7381317840 -24 15 42.526380780   17.8 16.4 14.94 13.36 K3-K5 52 0
29 CD-25 11504 Or* 16 25 38.480136 -26 13 54.28524   12.56 11.40 11.16   K7Ve 45 0
30 IRAS 16226-2420 TT* 16 25 39.58128 -24 26 34.9116       16.78 14.84 M2 52 0
31 ROX 3 Or* 16 25 49.6474658424 -24 51 31.947148440     13.10 12.10 11.13 M0e 59 0
32 WLY 2-10 TT* 16 25 50.5247210760 -24 39 14.565244608     15.49 13.83 12.30 K5.5 48 0
33 EM* SR 4 Or* 16 25 56.1659023848 -24 20 48.240627072     12.80 11.7 10.7 K0:Ve 216 1
34 [SKS95] 162300.0-241834 Or* 16 26 01.3781005104 -24 25 20.496413424           ~ 24 0
35 Haro 1-6 Or* 16 26 03.0276684144 -24 23 36.188140848   14.15 14.01 12.38 10.80 K0 229 2
36 GSS 26 Y*O 16 26 10.33152 -24 20 54.8232           M0 94 1
37 ROX 9 X 16 26 15 -25 42.6           ~ 2 0
38 GSS 29 TT* 16 26 16.8561896376 -24 22 23.150221356       17.4 15.23 K5-K6 93 1
39 DoAr 24 TT* 16 26 17.0743951968 -24 20 21.594730920   16.06 14.21 14.02 11.57 K7.5V 126 1
40 CRBR 2315.8-1700 Y*O 16 26 17.22936 -24 23 45.3660           ~ 47 0
41 CRBR 2317.3-1925 Y*O 16 26 18.82056 -24 26 10.5216           M7 47 0
42 Elia 2-20 TT* 16 26 18.8775818016 -24 28 19.695035064           ~ 140 1
43 CRBR 2317.5-1729 LM* 16 26 18.98232 -24 24 14.2596           M6 51 0
44 GSS 30 Y*O 16 26 21.38160 -24 23 04.0524           ~ 223 1
45 [GY92] 5 Or* 16 26 21.5381846568 -24 26 00.994958844       18.30 15.80 M7 77 1
46 VSSG 12 Y*O 16 26 22.38552 -24 22 52.9464           ~ 54 0
47 [GY92] 13 * 16 26 22.85016 -24 43 10.8984           ~ 4 0
48 [GY92] 15 Y*O 16 26 22.95576 -24 28 46.1496           M6 27 0
49 GSS 31 TT* 16 26 23.3684537424 -24 20 59.579380248   15.9 14.70 14.33 11.53 K0e 154 1
50 [GY92] 21 Y*O 16 26 23.57976 -24 24 39.4956           K7 80 2
51 DoAr 25 TT* 16 26 23.6911292736 -24 43 13.888543800       12.65   K5 201 0
52 GSS 32 TT* 16 26 24.0509462472 -24 24 48.095495928       17.81 15.58 K5-K6 115 1
53 [GY92] 29 Y*O 16 26 25.28280 -24 24 45.0072           ~ 26 1
54 NAME VLA 1623-243 Y*O 16 26 26.42 -24 24 30.0           ~ 429 0
55 [SSG2006] MMS002 smm 16 26 26.50 -24 24 30.9           ~ 241 0
56 ROX 13 Y*O 16 26 29.67048 -24 19 05.5092           ~ 24 1
57 VSSG 27 Y*O 16 26 30.46896 -24 22 57.1440           M 64 1
58 VSSG 4 Y*O 16 26 37.78680 -24 23 00.7476           ~ 33 0
59 [GY92] 91 Y*O 16 26 40.46952 -24 27 14.4720           ~ 92 1
60 [GY92] 93 TT* 16 26 41.2666088952 -24 40 17.881012092       15.41 13.37 M5 65 0
61 WL 8 Y*O 16 26 42.01776 -24 33 26.2332           ~ 21 0
62 WL 7 Y*O 16 26 42.14328 -24 31 02.9460           ~ 36 0
63 GSS 37 TT* 16 26 42.85416 -24 20 29.8608       16.29 14.08 K7-M2 87 1
64 [GY92] 109 Y*O 16 26 42.89280 -24 22 59.0808           M6 19 0
65 VSSG 11 TT* 16 26 43.7641950672 -24 16 33.272135940           ~ 52 1
66 VSSG 30 Y*O 16 26 44.19504 -24 34 48.3492           ~ 138 0
67 GSS 39 Or* 16 26 45.0318401664 -24 23 07.793180124           M0 255 1
68 YLW 37 TT* 16 26 46.4288834880 -24 12 00.078675192   17.15   13.90 12.37 G3.5 65 0
69 Haro 1-8 Or* 16 26 47.4286391784 -23 14 52.216728864   14.1       ~ 60 0
70 WL 2 Y*O 16 26 48.48624 -24 28 38.9064           ~ 64 1
71 WSB 40 TT* 16 26 48.6589514568 -23 56 34.141257060       14.45 12.92 K5.5 46 0
72 WL 18 TT* 16 26 48.9809680488 -24 38 25.152593208       19.33 17.38 M3.5 77 0
73 VSSG 3 Or* 16 26 49.2314977008 -24 20 03.429427200           ~ 50 1
74 BBRCG 13 Y*O 16 26 51.97104 -24 30 39.4956           M4-M6 31 1
75 BBRCG 14 Y*O 16 26 53.46936 -24 32 36.2472           ~ 27 1
76 [GY92] 152 Y*O 16 26 54.29328 -24 24 38.1636           M3-5 18 0
77 VSSG 5 Y*O 16 26 54.44376 -24 26 20.7204           ~ 46 1
78 [GY92] 154 Y*O 16 26 54.77088 -24 27 02.2464           M6 27 0
79 [GY92] 156 Y*O 16 26 54.97272 -24 22 29.6904           ~ 22 1
80 WL 21 Y*O 16 26 57.33000 -24 35 38.8032           M6 45 0
81 CRBR 2356.6-3058 Y*O 16 26 58.27872 -24 37 40.9584           ~ 26 0
82 YLW 1C Or* 16 26 58.39608 -24 21 29.9808           M6 35 0
83 VSSG 8 TT* 16 27 01.61856 -24 21 37.0404           ~ 16 0
84 [GY92] 188 Y*O 16 27 03.00720 -24 26 14.6976           ~ 32 1
85 VSSG 31 Or* 16 27 04.10688 -24 28 29.9136           ~ 63 1
86 [GY92] 195 Or* 16 27 04.57464 -24 27 15.6636           ~ 34 1
87 [GY92] 197 Y*O 16 27 05.24616 -24 36 29.7936           ~ 74 1
88 [GY92] 204 TT* 16 27 06.5924837856 -24 41 48.871282992       17.57 15.43 M5 113 0
89 WL 17 Y*O 16 27 06.77616 -24 38 14.9964           ~ 113 0
90 WL 10 Or* 16 27 09.1062090672 -24 34 08.278196304           K9 79 0
91 [GY92] 213 Y*O 16 27 09.35328 -24 40 22.4292           ~ 33 0
92 Elia 2-29 Y*O 16 27 09.43032 -24 37 18.7716           ~ 296 1
93 EM* SR 21A TT* 16 27 10.2778380120 -24 19 12.622467720   16.08 14.10     G1 293 1
94 WLY 1-43 Y*O 16 27 11.17992 -24 40 46.6680           ~ 62 0
95 WL 19 Y*O 16 27 11.71416 -24 38 32.0604           ~ 71 0
96 WL 11 Or* 16 27 12.13128 -24 34 49.1412           M2 45 0
97 VSSG 24 Or* 16 27 13.7329154424 -24 18 16.861890420           ~ 42 1
98 [GY92] 235 Or* 16 27 13.8206486496 -24 43 31.647995436           M3.5 49 0
99 WLY 2-33 Y*O 16 27 14.50512 -24 26 46.0860           ~ 34 0
100 YLW 10B Y*O 16 27 15.45432 -24 26 39.8004           ~ 52 0
101 WLY 2-35 Y*O 16 27 15.51408 -24 30 53.6832           ~ 34 0
102 WL 20 TT* 16 27 15.69840 -24 38 43.4364           M0 86 0
103 YLW 10C Y*O 16 27 15.88488 -24 25 14.1924           ~ 29 0
104 NAME WL 20E TT* 16 27 15.8951829912 -24 38 43.788560604           K7 78 0
105 YLW 12A Y*O 16 27 17.57160 -24 28 56.2944           ~ 72 0
106 WL 5 TT* 16 27 18.17064 -24 28 52.6800           ~ 91 0
107 BBRCG 39 Y*O 16 27 18.38040 -24 39 14.6844           ~ 47 0
108 VSSG 26 Or* 16 27 18.48720 -24 29 05.9136           ~ 97 0
109 WL 3 Y*O 16 27 19.21584 -24 28 43.8528           K7 69 0
110 YLW 13B Y*O 16 27 21.46872 -24 41 43.0692           ~ 96 0
111 WL 6 Y*O 16 27 21.80448 -24 29 53.3616           ~ 116 0
112 CRBR 2422.8-3423 Y*O 16 27 24.61320 -24 41 03.4080           ~ 101 1
113 [GY92] 260 Y*O 16 27 26.28552 -24 42 46.1304           M3-5 28 0
114 YLW 16C Or* 16 27 26.48952 -24 39 23.0760           M1 56 0
115 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 281 1
116 Elia 2-31 TT* 16 27 27.3786513768 -24 31 16.442242464           ~ 74 1
117 YLW 16A Y*O 16 27 28.02744 -24 39 33.5052           K8 205 0
118 Elia 2-32 Y*O 16 27 28.44576 -24 27 21.0348           K6.5 121 1
119 YLW 16B Or* 16 27 29.43528 -24 39 16.1892           ~ 108 0
120 Elia 2-33 Y*O 16 27 30.18024 -24 27 43.3656           M2 125 1
121 [GY92] 284 TT* 16 27 30.8467391952 -24 24 56.094396228       18.45 16.24 M3.25 56 0
122 BBRCG 60 Y*O 16 27 32.67576 -24 33 23.9328           ~ 36 0
123 BBRCG 61 Y*O 16 27 32.85048 -24 32 34.8324           ~ 33 0
124 YLW 18 TT* 16 27 33.1157754648 -24 41 15.259932924       17.66 15.65 K5-K6 88 0
125 IRAS 16245-2423 TT* 16 27 37.1906433768 -24 30 35.025246828       16.66 14.67 B5-F2 376 0
126 [GY92] 301 Y*O 16 27 37.24944 -24 42 38.0160           ~ 43 0
127 YLW 47 TT* 16 27 38.3206405584 -24 36 58.594880844       17.69 15.52 M0 104 0
128 [GY92] 310 Or* 16 27 38.6295993720 -24 38 39.214842072         17.40 M8 70 0
129 [GY92] 312 Y*O 16 27 38.94456 -24 40 20.6724           M2.5 52 0
130 ROX 27 TT* 16 27 39.4295731464 -24 39 15.527230272       15.76 14.03 M0+M4 137 0
131 YLW 45 Y*O 16 27 39.82824 -24 43 15.0672           ~ 120 0
132 CD-24 12689 Or* 16 27 40.2857881416 -24 22 04.130226300   12.91 11.533 11.11 10.00 K5e 301 0
133 [GY92] 323 Y*O 16 27 41.75280 -24 43 36.0984           ~ 24 0
134 [GY92] 326 TT* 16 27 42.7019158944 -24 38 50.619050052         17.30 M2 45 0
135 [GY92] 344 Y*O 16 27 45.78672 -24 44 53.8620           M6 31 0
136 [GY92] 350 Or* 16 27 46.2923939352 -24 31 41.243157372           M7.5 46 0
137 [GY92] 352 Y*O 16 27 47.09496 -24 45 35.0676           ~ 24 0
138 [GY92] 371 Or* 16 27 49.7891400099 -24 25 21.930904732           M6 35 0
139 YLW 52 Y*O 16 27 51.80472 -24 31 45.5304           ~ 71 0
140 WLY 2-55 TT* 16 27 52.0872222936 -24 40 50.723707476     16.28 14.48 12.78 K7.5 85 0
141 [GY92] 397 Y*O 16 27 55.25496 -24 28 39.5580           M6 29 0
142 EM* SR 10 Or* 16 27 55.5811084704 -24 26 18.029534748   15.23 14.19 13.91 11.95 M1.5e 88 0
143 [GY92] 450 Y*O 16 28 03.55560 -24 34 38.6148           M6 14 0
144 [GY92] 463 TT* 16 28 04.64592 -24 34 56.0964           ~ 16 0
145 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
146 YLW 58 TT* 16 28 16.5129208176 -24 36 58.054939128   18.5   16.55 14.46 M4 119 0
147 EM* SR 20W TT* 16 28 23.3448796920 -24 22 40.668069288     15.79 16.29 14.60 K5 49 0
148 EM* SR 20 Or* 16 28 32.6876536896 -24 22 45.008526648   16.23   12.59   G7 90 0
149 2MASS J16303563-2434188 TT* 16 30 35.6378666880 -24 34 18.704660484   12.5 12.90 11.85 10.76 ~ 37 0
150 IRAS 16275-2638 OH* 16 30 37.4077303776 -26 44 54.288756852           O-rich 23 0
151 V* V2131 Oph Or* 16 31 15.7445171496 -24 34 02.161097472   12.0 12.05 11.06 10.13 ~ 102 0
152 CD-24 12697A TT* 16 31 20.1191847456 -24 30 05.057116128   11.89 10.93     G5IVe 53 0
153 CD-24 12697 TT* 16 31 20.12 -24 30 05.0           G5IVe+K3(e) 40 0
154 DoAr 43 Em* 16 31 30.8820829680 -24 24 39.887863092   16.98 15.23 15.20   K2Ve 63 0
155 Haro 1-16 Or* 16 31 33.4634997336 -24 27 37.158728076   14.02 12.80     K3e 266 0
156 LDN 1709 DNe 16 31 34.8 -24 02 55           ~ 84 0
157 IRAS 16285-2355 Y*O 16 31 35.65752 -24 01 29.4708           ~ 178 0
158 ISO-Oph 204 TT* 16 31 52.1203898904 -24 56 15.707944320           ~ 45 0
159 IRAS 16289-2457 Y*O 16 31 54.7465284384 -25 03 24.085891512           M 36 0
160 WLY 2-67 Y*O 16 32 00.99624 -24 56 41.9640           ~ 67 0
161 DoAr 51 Or* 16 32 11.7949720728 -24 40 21.640407420   13.89 13.65 12.43 11.025 K8IVe 76 0
162 WLY 2-69 Y*O 16 32 21.0551616720 -24 30 35.941721580           ~ 28 0
163 LDN 1689 DNe 16 32 22.5 -24 28 29           ~ 153 0
164 IRAS 16330-2424 IR 16 36 05.4 -24 30 39   19.6 16.3     ~ 5 0
165 IRAS 16349-2502 Mi* 16 38 02.8826456616 -25 08 29.011242444   18.8 12.27     ~ 8 0
166 * ksi Dra PM* 17 53 31.7295427958 +56 52 21.510944948 6.14 4.93 3.75 2.92 2.33 K2III 285 0
167 * alf Lac PM* 22 31 17.5014213452 +50 16 56.969913082 3.78 3.78 3.77 3.77 3.80 A1V 270 0

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