2017A&A...601A..97S

Query : 2017A&A...601A..97S

2017A&A...601A..97S - Astronomy and Astrophysics, volume 601A97-97 (2017/5-1)

The Gaia-ESO Survey: Structural and dynamical properties of the young cluster Chamaeleon I.

SACCO G.G., SPINA L., RANDICH S., PALLA F., PARKER R.J., JEFFRIES R.D., JACKSON R., MEYER M.R., MAPELLI M., LANZAFAME A.C., BONITO R., DAMIANI F., FRANCIOSINI E., FRASCA A., KLUTSCH A., PRISINZANO L., TOGNELLI E., DEGL'INNOCENTI S., PRADA MORONI P.G., ALFARO E.J., MICELA G., PRUSTI T., BARRADO D., BIAZZO K., BOUY H., BRAVI L., LOPEZ-SANTIAGO J., WRIGHT N.J., BAYO A., GILMORE G., BRAGAGLIA A., FLACCOMIO E., KOPOSOV S.E., PANCINO E., CASEY A.R., COSTADO M.T., DONATI P., HOURIHANE A., JOFRE P., LARDO C., LEWIS J., MAGRINI L., MONACO L., MORBIDELLI L., SOUSA S.G., WORLEY C.C. and ZAGGIA S.

Abstract (from CDS):

Investigating the physical mechanisms driving the dynamical evolution of young star clusters is fundamental to our understanding of the star formation process and the properties of the Galactic field stars. The young (∼2Myr) and partially embedded cluster Chamaeleon I is one of the closest laboratories for the study of the early stages of star cluster dynamics in a low-density environment. The aim of this work is to study the structural and kinematical properties of this cluster combining parameters from the high-resolution spectroscopic observations of the Gaia-ESO Survey with data from the literature. Our main result is the evidence of a large discrepancy between the velocity dispersion (σstars=1.14±0.35km/s) of the stellar population and the dispersion of the pre-stellar cores (∼0.3km/s) derived from submillimeter observations. The origin of this discrepancy, which has been observed in other young star clusters, is not clear. It has been suggested that it may be due to either the effect of the magnetic field on the protostars and the filaments or to the dynamical evolution of stars driven by two-body interactions. Furthermore, the analysis of the kinematic properties of the stellar population puts in evidence a significant velocity shift (∼1km/s) between the two subclusters located around the north and south main clouds of the cluster. This result further supports a scenario where clusters form from the evolution of multiple substructures rather than from a monolithic collapse. Using three independent spectroscopic indicators (the gravity indicator γ, the equivalent width of the Li line at 6708Å, and the Hα 10% width), we performed a new membership selection. We found six new cluster members all located in the outer region of the cluster, proving that Chamaeleon I is probably more extended than previously thought. Starting from the positions and masses of the cluster members, we derived the level of substructure Q, the surface density Σ, and the level of mass segregation ΛMSR of the cluster. The comparison between these structural properties and the results of N-body simulations suggests that the cluster formed in a low-density environment, in virial equilibrium or a supervirial state, and highly substructured.

Abstract Copyright: © ESO, 2017

Journal keyword(s): stars: kinematics and dynamics - stars: pre-main sequence - open clusters and associations: individual: Chamaeleon I - techniques: spectroscopic - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/A+A/601/A97): table1.dat table2.dat>

Simbad objects: 186

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Number of rows : 186
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 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
2 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
3 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
4 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
5 HD 93828 * 10 46 37.9025316600 -77 36 03.586165200   10.00 9.35   8.88 F0V 20 0
6 2MASS J10523694-7440287 Or* 10 52 36.9141236232 -74 40 28.821002484         13.60 M4.75 6 0
7 2MASS J10533978-7712338 TT* 10 53 39.7627565760 -77 12 33.939774612     19.38   15.56 M2.75 26 0
8 ESO-HA 552 Or* 10 55 09.6482028240 -77 30 54.209083932     17.49     M5e 18 0
9 V* SX Cha Or* 10 55 59.802000 -77 24 40.12524   16.01 14.57 14.23 12.35 M1.5+M3 97 0
10 2MASS J10561638-7630530 Or* 10 56 16.3768137936 -76 30 53.122626108         14.92 M5.6 30 0
11 V* SY Cha Or* 10 56 30.3883129248 -77 11 39.401977596         11.29 K5Ve 194 0
12 2MASS J10563146-7618334 Or* 10 56 31.4832623160 -76 18 33.553237284           M4Ve 13 0
13 Sz 4 TT* 10 57 42.0977196408 -76 59 35.641299948   14.1 14.80   12.17 M4Ve 53 0
14 UCAC2 543262 Or* 10 57 53.7733787904 -77 24 49.722619284       16.07 13.44 M4Ve 16 0
15 2MASS J10580597-7711501 Or* 10 58 05.9730159264 -77 11 50.171141904         15.89 M5.25 26 0
16 V* SZ Cha Or* 10 58 16.7500775160 -77 17 17.185749900     12.68   10.62 K0e 143 0
17 V* TW Cha Or* 10 59 01.0607352312 -77 22 40.947126636     13.40   11.68 K8Ve 156 0
18 Hen 3-545 Or* 10 59 06.9715593000 -77 01 40.309233240   12.91 11.136   9.596 K4Ve 237 0
19 Ass Cha T 1-6 Or* 11 00 40.2418846200 -76 19 28.006915296   14.7     13.64 M4e 60 0
20 2MASS J11011370-7722387 Or* 11 01 13.6929049992 -77 22 38.785233576         15.21 M5.25 11 0
21 CHXR 9C Y*O 11 01 18.723 -76 27 02.56   15.46 13.90 13.55 11.56 M1.5+M2 22 1
22 2MASS J11021927-7536576 Or* 11 02 19.2652050552 -75 36 57.644308692         14.09 M4.5 16 0
23 V* CS Cha Or* 11 02 24.8763629208 -77 33 35.667131796   12.88 11.69   10.123 K2Ve 261 0
24 UCAC3 30-32402 Or* 11 02 26.1004194936 -75 02 40.760096208         13.67 M4.75 12 0
25 Hn 1 Or* 11 02 32.6050296696 -77 29 13.031436624         13.10 M3+M5 52 0
26 [LES2004] ChaI 423 LM* 11 02 41.8176711864 -77 24 24.573985740         15.29 M5 14 0
27 Ass Cha T 1-8 TT* 11 02 55.0255671144 -77 21 50.814186624     16.25 15.17 13.40 M4.5e 76 0
28 ISO-ChaI 28 Or* 11 03 41.8505636736 -77 26 52.113622920           M5.5e 24 0
29 V* GR Cha Or* 11 03 47.6427402312 -77 19 56.417579004         13.91 M5e 29 0
30 GES J11035144-7540335 Or* 11 03 51.4407943032 -75 40 33.484410516           ~ 13 0
31 Hn 3 Or* 11 03 56.8213107528 -77 21 32.974510752   17.05 15.44 15.03 12.57 M4IIIe 39 0
32 CHSM 1715 Or* 11 04 04.2481004976 -76 39 32.945559912     19.84     M4.5e 30 0
33 V* CT Cha Or* 11 04 09.0989256840 -76 27 19.329779664   13.44 13.00   10.89 K7Ve 145 0
34 IRAS 11030-7702 TT* 11 04 22.7159038128 -77 18 08.299910700     17.89     K6/M0e 75 0
35 BYB 18 Or* 11 04 42.5993270304 -77 41 57.167040408         13.63 M4.5e 63 0
36 CHXR 14N Or* 11 04 51.0231828624 -76 25 24.079917972   15.98 14.13   11.89 K4Ve 33 0
37 CHXR 14S Or* 11 04 52.8621800208 -76 25 51.534522084   16.51 14.66   12.05 K8Ve 32 0
38 Sz 13 Or* 11 04 57.0089116656 -77 15 57.049656948     18.91 16.65 14.68 M3e 55 0
39 UCAC3 24-22792 Or* 11 05 07.5484340064 -78 12 06.271480116         13.74 M4.75 14 0
40 Hn 4 Or* 11 05 14.6449521936 -77 11 29.206958928         13.20 M4+M3 31 0
41 2MASS J11052272-7709290 Or* 11 05 22.6769855136 -77 09 28.968223356       17.61 15.38 M4.75 17 0
42 UCAC3 28-28699 Or* 11 05 24.7247788752 -76 26 20.784257556         13.09 M4V 21 0
43 CHXR 15 Or* 11 05 42.8800288464 -77 26 51.567587304         13.51 M5+M5 39 0
44 V* UV Cha Or* 11 05 52.6262744184 -76 18 25.461113688   15.13 13.69 13.21 11.58 K5Ve 45 0
45 HD 96675 Or* 11 05 57.8105960448 -76 07 48.884316960   7.82 7.68   8.48 B5V 88 0
46 2MASS J11060010-7507252 Or* 11 06 00.1043478024 -75 07 25.251492036         14.15 M4.5 16 0
47 Ass Cha T 2-21 TT* 11 06 15.3471261840 -77 21 56.720362608   12.58 11.01   9.35 G5Ve 144 0
48 2MASS J11062554-7633418 Or* 11 06 25.5205540968 -76 33 41.844743964     20.7   15.88 M6e 43 0
49 ISO-ChaI 79 Or* 11 06 39.4531299120 -77 36 05.253418332         17.83 M5e 31 0
50 Hn 5 Or* 11 06 41.7902217936 -76 35 49.067303964         13.61 M4.5e 67 0
51 Ass Cha T 2-22 Or* 11 06 43.4642963688 -77 26 34.426398552         13.02 M3e 40 0
52 V* UX Cha Or* 11 06 45.0944158128 -77 27 02.383275420     14.78   12.07 K5Ve 66 0
53 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
54 CHXR 74 TT* 11 06 57.3114166800 -77 42 10.639632780         13.66 M3Ve 55 0
55 V* UY Cha Or* 11 06 59.0257686696 -77 18 53.404488720         12.97 M4Ve 74 0
56 2MASS J11065939-7530559 Or* 11 06 59.4109563336 -75 30 55.959455556         15.79 M5.25 24 0
57 ESO-HA 281 mul 11 07 03.485520 -76 31 44.15916   17.47 15.55 15.05 12.93 M4.5 9 0
58 IRAS 11057-7706 Y*O 11 07 09.19896 -77 23 04.9920           ~ 64 0
59 Hn 6 Or* 11 07 11.4551582832 -77 46 39.344493324         13.31 M3e 45 0
60 CHSM 9484 Or* 11 07 11.8067087880 -76 25 50.015887680         16.07 M5e 32 0
61 V* UZ Cha Or* 11 07 12.0595557432 -76 32 23.248659588         12.62 K8Ve 71 0
62 [CCE98] 1-46 Or* 11 07 13.2923530152 -77 43 49.768078224         14.77 M3.5e 55 0
63 V* GZ Cha Or* 11 07 16.22784 -77 23 06.8316           M1 31 0
64 Ass Cha T 1-12 Or* 11 07 19.1444866104 -76 03 04.864188060   17.05 15.35   12.57 M4Ve 77 0
65 Ass Cha T 2-26 B Or* 11 07 20.1891741120 -77 38 11.565748500       15.94 14.21 M4Ve 22 0
66 ISO-ChaI 99 Or* 11 07 20.3872893768 -77 29 40.307249292       14.91 13.00 M4Ve 25 0
67 V* DI Cha Or* 11 07 20.7276076008 -77 38 07.308086352   12.02 10.74 10.72   G2Ve 190 0
68 [KG2001] 10 Or* 11 07 24.4170266040 -77 43 48.836350560       19.55 16.93 M5.75 13 0
69 V* VV Cha Or* 11 07 28.241088 -76 52 11.92620   16.00 14.72 14.48 12.19 M1.5+M3 74 0
70 CHXR 76 Or* 11 07 35.1774430800 -77 34 49.286652024   20.04 18.15   14.39 M4e 58 0
71 2MASS J11073832-7747168 Or* 11 07 38.3094558336 -77 47 16.742658084     18.37 16.72 14.53 M5e 26 0
72 2MASS J11073840-7552519 Or* 11 07 38.3771763864 -75 52 51.817898712         14.66 M4.75 11 0
73 V* HK Cha Or* 11 07 42.3364909752 -77 33 59.394350844   21.9 19.8   15.26 M5.25e 93 0
74 Ass Cha T 1-15 Or* 11 07 43.6610412264 -77 39 41.134236408   17.05 15.34   12.67 K5Ve 88 0
75 NAME Cha I South reg 11 07 44 -77 34.8           ~ 12 0
76 [NC98] Cha HA 8 Or* 11 07 46.0912894776 -77 40 08.918309388   22.2 20.1   15.61 M5.75e 51 1
77 2MASS J11074656-7615174 Or* 11 07 46.5862114680 -76 15 17.398121508         16.84 M5.75e 34 0
78 V* HL Cha Or* 11 07 52.2574621728 -77 36 57.037742172   21.5 19.51   15.07 M5.5e 59 0
79 RX J1108.2-7728 Y*O 11 07 55.775088 -77 27 25.52724   15.26 13.40 13.07 11.04 K3Ve 59 0
80 Ass Cha T 1-16 Or* 11 07 57.9428053584 -77 38 44.977882344   15.1 14.2   13.04 K4-7 79 0
81 Sz 23 Or* 11 07 58.0951794888 -77 42 41.352365124   15.8 18.04   14.63 M4Ve 79 0
82 ESO-HA 561 Or* 11 07 59.8879742016 -77 15 31.752670104       17.87 15.45 M6.5e 26 0
83 CHXR 30A Or* 11 07 59.9497969992 -77 17 30.576549264   21.8   18.3 15.78 K8 36 0
84 V* VW Cha Or* 11 08 01.502064 -77 42 28.87524 13.91 14.165 12.761 12.653 10.69 K7+M0 202 0
85 ESO-HA 562 Or* 11 08 02.8789169712 -77 38 42.580139640     17.61   14.41 M0.5+M0.5 59 0
86 HD 97048 Ae* 11 08 03.3109731720 -77 39 17.490777444 9.03 8.76 9.00   8.64 A0Vep 590 0
87 V* HP Cha TT* 11 08 15.216432 -77 33 53.17020   14.33 12.77 12.11   K3+G5e 124 0
88 Ass Cha T 1-19 Or* 11 08 16.4948745984 -77 44 37.199315580   18.40 16.53   13.12 M4Ve 61 0
89 2MASS J11081703-7744118 Or* 11 08 17.0491254960 -77 44 11.866411824   20.4 18.51   14.34 M5.5e 39 0
90 [NC98] Cha HA 4 Or* 11 08 18.9694304592 -77 39 17.131209948   20.5 18.52   14.50 M5.5e 46 0
91 WISE J110819.15-773152.6 Y*O 11 08 19.2633810720 -77 31 52.221531756       22.04 19.64 M4.75 8 0
92 ISO-ChaI 143 Or* 11 08 22.3647237024 -77 30 27.783619596         15.51 M5e 58 0
93 [NC98] Cha HA 5 Or* 11 08 24.1193575992 -77 41 47.438803392   21.3 19.18   14.85 M5.5e 60 0
94 ISO-ChaI 147 Or* 11 08 26.4697073400 -77 15 55.074237156         16.81 M5.75 51 0
95 Ass Cha T 1-20 Or* 11 08 39.0261275112 -77 16 04.163889324   18.44 16.28 15.822 13.17 K5Ve 95 0
96 V* HQ Cha Or* 11 08 39.5017287912 -77 34 16.733892756   21.7 19.75   15.06 M5.75e 80 0
97 HJM C 1-10 Or* 11 08 40.6993664280 -76 36 07.845356304   17.34 15.50 14.96 12.60 K8Ve 30 0
98 2MASS J11084296-7743500 * 11 08 42.966 -77 43 50.04           ~ 6 0
99 Sz 28 Or* 11 08 50.9098459272 -76 25 13.681141392   16.4     14.60 M4Ve 66 0
100 2MASS J11085242-7519027 Or* 11 08 52.4246166720 -75 19 02.791977060           M3Ve 14 0
101 V* PU Car TT* 11 08 53.6905436304 -75 21 36.001367136   15.487 14.275 14.560   M1Ve 40 0
102 V* HR Cha Or* 11 08 54.1972860288 -77 32 11.656356468     19.1   15.01 M5.25e 48 0
103 V* VY Cha Or* 11 08 54.6059374368 -77 02 13.006464720   14.8     13.60 K8Ve 80 0
104 V* HS Cha Or* 11 08 54.9599362056 -76 32 41.148693636     20.12 18.616 16.650 M5.5e 43 0
105 Hn 7 Or* 11 09 05.1044667264 -77 09 58.026125412         13.96 M5e 34 0
106 2MASS J11090915-7553477 Or* 11 09 09.1466650032 -75 53 47.827039200           M4Ve 15 0
107 Sz 30 TT* 11 09 11.72304 -77 29 12.4836   14.89 13.28 13.02 11.032 M2.5+M2 57 0
108 NAME Sz 30C Or* 11 09 12.9437955504 -77 29 11.581308204           K8Ve 15 0
109 HJM C 1-15 Or* 11 09 13.8188326128 -76 28 39.682556400         13.91 M4Ve 37 0
110 [CCE98] 1-74 TT* 11 09 17.6942588064 -76 27 57.926988648   15.48 13.92   11.72 K4Ve 51 0
111 V* HU Cha Or* 11 09 18.12888 -76 30 29.2500         14.99 M1/2e 57 0
112 V* VZ Cha Or* 11 09 23.7739008528 -76 23 20.857480836   13.82 12.94   12.14 K7e 162 0
113 V* GM Cha Or* 11 09 28.55424 -76 33 28.1376           M3.5-M6.5 56 0
114 [LES2004] ChaI 602 LM* 11 09 29.0817746064 -76 59 18.130084800         15.70 M5.25 14 0
115 NAME Cha I North reg 11 09 29.4 -76 33 28           ~ 13 0
116 CHX 15b Or* 11 09 40.0612946232 -76 28 39.236612160   15.68 14.04   11.66 K8Ve 43 0
117 ESO-HA 566 Or* 11 09 45.2246883744 -77 40 33.347173692     19.94 18.02 15.37 M6.5e 29 0
118 HJM C 1-24 TT* 11 09 46.1881553592 -76 34 46.503994080   11.93 18.41   14.72 M3.25e 71 1
119 [KG2001] 102 Or* 11 09 49.1442916920 -77 31 19.751456928         15.64 M5.5 21 0
120 HD 97300 Ae* 11 09 50.0199904704 -76 36 47.718191232   9.41 9.20   8.82 B9V 190 1
121 2MASS J11095262-7740348 Or* 11 09 52.5595099848 -77 40 34.967644824     21.47     M3e 17 0
122 Ass Cha T 1-23 Or* 11 09 53.4189070920 -76 34 25.652641116   13.9 19.50 15.10 13.52 G9IIIe 100 0
123 V* HX Cha Or* 11 09 54.062760 -76 29 25.54332       16.08 14.03 M3.5+M7 73 0
124 2MASS J11095493-7635101 Or* 11 09 54.8379253896 -76 35 10.411560636           M5.75 7 0
125 V* WX Cha Or* 11 09 58.666944 -77 37 09.03432   14.93 13.85 14.23 12.20 M1+M5 111 0
126 V* WW Cha TT* 11 10 00.0802739160 -76 34 57.963853416   14.74 14.10   10.95 ~ 165 0
127 HJM C 1-4 Or* 11 10 03.6830951520 -76 33 29.218685616     18.78 16.1 14.72 K8e 69 0
128 V* FN Cha Or* 11 10 04.6714603680 -76 35 45.253161564     14.68 13.89 12.39 K5Ve 66 0
129 V* WY Cha Or* 11 10 07.0339153464 -76 29 37.674167388   15.29 13.87   11.62 K8Ve 95 1
130 HJM C 1-8 Or* 11 10 11.3918141448 -76 35 29.247545184         13.75 K5Ve 68 0
131 2MASS J11101153-7733521 Or* 11 10 11.5109647056 -77 33 52.048254168       16.33 14.24 M4Ve 22 0
132 HJM C 6-2 Or* 11 10 28.5085562328 -77 16 59.595145932     17.93   13.97 M3Ve 44 0
133 [LES2004] ChaI 405 TT* 11 10 34.7926198584 -77 22 05.249586360     20.9   15.61 M4 30 0
134 Glass Q Or* 11 10 37.8987149352 -77 32 39.881630256   16.89 14.97   11.90 K5.5+K7 84 0
135 Ass Cha T 1-27 Or* 11 10 49.5667074984 -77 17 51.754670016   16.80 16.64   13.84 M4Ve 92 0
136 ESO-HA 568 Or* 11 10 50.7394673592 -77 18 03.172230828     18.27 16.65 14.50 M4.5e 29 0
137 V* WZ Cha Or* 11 10 53.3212598040 -76 34 32.057703048   16.41 15.48   13.07 M4Ve 84 0
138 HJM C 2-5 Or* 11 10 55.9782007344 -76 45 32.646407688         13.95 M6e 54 0
139 ESO-HA 569 Or* 11 11 10.6899611256 -76 41 57.345117072     20.28   17.34 M2.5 35 0
140 HJM E 4-7 LM* 11 11 22.6240346520 -77 05 53.885035788         14.02 M4Ve 29 0
141 HJM E 1-7 Or* 11 11 34.7528117136 -76 36 21.247478892   16.35 14.73   12.35 K8Ve 42 0
142 V* XX Cha Or* 11 11 39.6728641032 -76 20 15.032221548   16.67 15.28   12.56 M3Ve 137 1
143 CHX 18N TT* 11 11 46.3370290776 -76 20 08.948823324   13.27 11.96   10.37 K5IVe 93 1
144 Hn 15 Y*O 11 11 54.024360 -76 19 30.93132   16.02 14.37 13.98 11.88 M2.5+M3.5 27 1
145 HJM E 1-10 Or* 11 12 03.2811346896 -76 37 03.242420508         13.97 M5.5e 40 0
146 V* IM Cha Or* 11 12 03.5025776424 -77 26 00.841371900     20.08     M6e 42 0
147 Sz 40 Or* 11 12 09.8312703024 -76 34 36.490702728   15.2     13.41 M4.5Ve 79 0
148 Sz 41 TT* 11 12 24.3973943352 -76 37 06.181395384   11.2 11.60   10.22 K7+M2.5 115 1
149 V* CV Cha Or* 11 12 27.7055693328 -76 44 22.302807396   12.02 10.98 10.51 9.76 G9Ve 216 1
150 V* CW Cha Or* 11 12 30.9285677040 -76 44 24.000940464   15.75 14.45 15.19 13.60 ~ 69 1
151 HJM E 4-3 Or* 11 12 42.1036824000 -76 58 40.108452312   14.74 13.29 12.98   K5Ve 40 0
152 Ass Cha T 2-54 TT* 11 12 42.6709132056 -77 22 22.943489160     11.103   9.653 G8+K7 102 2
153 HJM E 1-8 TT* 11 12 42.9828272280 -76 37 04.868196276         10.95 K3Ve 42 0
154 HJM E 2-9 Or* 11 12 48.6110100768 -76 47 06.614161764         13.66 M4e 35 0
155 2MASS J11130450-7534369 Or* 11 13 04.4001123192 -75 34 36.891764148           M4Ve 9 0
156 HJM E 4-4 Or* 11 13 20.1444527808 -77 01 04.444538196   16.17 14.63   12.31 M2.75 29 0
157 Hn 18 Or* 11 13 24.4522663344 -76 29 22.868165508         13.51 M4Ve 53 0
158 HJM E 1-4 Or* 11 13 27.3678427440 -76 34 16.632434316   15.96 14.35   12.10 K8Ve 32 0
159 Hn 19 Or* 11 13 29.6961323352 -76 29 01.376928888         13.42 M4Ve 38 0
160 Sz 44 Or* 11 13 33.5603010096 -76 35 37.463501400   15.4     13.59 M4Ve 39 0
161 Hn 20 Or* 11 14 15.5356101936 -76 27 36.568161144         13.24 M4Ve 32 0
162 Hn 21W Or* 11 14 24.5192431416 -77 33 06.402087756     18.20   14.24 M4e 46 0
163 Hn 21E Or* 11 14 26.1069192168 -77 33 04.437695880     20.7   15.47 M6e 21 0
164 2MASS J11142906-7625399 Or* 11 14 29.0610261864 -76 25 40.118842992     17.73   14.46 M5.5e 16 0
165 BYB 53 Or* 11 14 50.3197758984 -77 33 38.803504860         11.83 M2+M4 30 0
166 2MASS J11152180-7724042 Or* 11 15 21.7744488504 -77 24 04.132555128     17.38   13.79 M5.5e 15 0
167 UCAC3 26-24615 Or* 11 15 58.2846550464 -77 29 04.463355480         13.65 M4.5 11 0
168 ESO-HA 574 Or* 11 16 02.8655829624 -76 24 53.197151184     19.60   17.25 K7-M0 28 0
169 Ass Cha T 1-32 Or* 11 17 36.9756803040 -77 04 38.123504472   13.1 13.50   11.78 M0.5e 102 0
170 2MASS J11173792-7646193 Or* 11 17 37.9236687960 -76 46 19.347752316         15.85 M5.75 10 0
171 UCAC3 28-29527 Y*O 11 17 52.11672 -76 29 39.2640       15.54 13.39 M4.5 12 0
172 CHXR 68B * 11 18 19.5922248768 -76 22 01.435194084   16.46 14.80     M2e 17 0
173 CHXR 68A Or* 11 18 20.2726799448 -76 21 57.719374992   14.22 12.75 12.51 10.96 K4Ve 24 0
174 2MASS J11183379-7643041 Y*O 11 18 33.79824 -76 43 04.1772         13.24 M5 4 0
175 IRAS F11171-7919 Y*O 11 18 35.821080 -79 35 54.93624   16.49 15.06 14.99 12.22 M4.75 24 0
176 2MASS J11194214-7623326 Or* 11 19 42.1545045888 -76 23 32.596946016         14.73 M5 11 0
177 UCAC4 068-012962 Or* 11 21 30.7931592072 -76 33 35.172402732   16.80 15.07 14.62   M4Ve 16 0
178 2MASS J11241186-7630425 Or* 11 24 11.8643530704 -76 30 42.679500732         14.87 M5 25 0
179 UCAC3 29-33027 Or* 11 24 29.8385538360 -75 54 23.857702020         12.91 M4Ve 13 0
180 2MASS J11291261-7546263 TT* 11 29 12.6349452648 -75 46 26.416175772     12.91     K3Ve 28 0
181 UCAC4 069-013579 Y*O 11 33 23.227344 -76 22 09.37308   16.94 15.27 15.24 12.26 M4.5 5 0
182 [FLG2003] eps Cha 15 Y*O 11 33 49.2946836408 -76 18 40.057349184         14.08 M4.5 9 0
183 [FLG2003] eps Cha 16 Y*O 11 40 49.6774997040 -74 59 39.248385108         15.02 M5.75 13 0
184 [FLG2003] eps Cha 17 Y*O 11 43 26.6961432072 -78 04 45.492325392         13.33 M5 28 0
185 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 887 0
186 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1

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