2001AJ....121..974G

Query : 2001AJ....121..974G

2001AJ....121..974G - Astron. J., 121, 974-983 (2001/February-0)

A near-infrared imaging survey of the Chamaeleon I dark cloud.

GOMEZ M. and KENYON S.J.

Abstract (from CDS):

We describe a near-infrared imaging survey covering ∼1 deg2 of the Chamaeleon I dark cloud. The survey is complete for K<15.0, H<16.0, and J<16.5, roughly 2 magnitudes more sensitive than previous large-scale surveys. We use the large number of background stars detected to derive an accurate near-infrared extinction law for the cloud and select new candidate members with near-infrared color excesses. We list ∼100 candidates of the cloud with K≥12.0, based on their positions in the J-H, H-K color-color diagram. These new stars have low luminosities (K∼12-16, H-K≳0.5-1.5) and may have masses close to or even below the hydrogen-burning limit.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - ISM: Individual: Name: Chamaeleon I - Stars: Formation - Stars: Low-Mass, Brown Dwarfs - Stars: Pre-Main-Sequence

VizieR on-line data: <Available at CDS (J/AJ/121/974): table3.dat table4.dat>

Nomenclature: Tables 3, 4: [GK2001] NNN (Nos 1-118).

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 IC 343 GiG 03 40 07.1371739136 -18 26 36.447632988   14.17 13.19 12.81   ~ 55 1
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4415 0
3 [GK2001] 57 Y*O 10 40 47.6 -77 36 49           ~ 1 0
4 2MASS J11041684-7725494 Y*O 11 04 16.8732026664 -77 25 49.440344160           ~ 1 0
5 [GK2001] 59 Y*O 11 04 27.0 -77 28 02           ~ 1 0
6 2MASS J11043047-7734401 Y*O 11 04 30.5082687312 -77 34 40.120833252           ~ 1 0
7 2MASS J11043182-7754087 Y*O 11 04 31.8735320664 -77 54 08.836114716           ~ 1 0
8 2MASS J11043401-7801267 Y*O 11 04 34.0344548568 -78 01 26.571120348           ~ 2 0
9 [GK2001] 62 Y*O 11 04 35.8 -77 29 09           ~ 1 0
10 [GK2001] 63 Y*O 11 04 36.2 -77 50 12           ~ 1 0
11 [GK2001] 64 Y*O 11 04 38.7 -77 24 21           ~ 1 0
12 [GK2001] 65 Y*O 11 04 39.1 -77 40 05           ~ 1 0
13 [GK2001] 2 Y*O 11 04 41.5 -77 38 52           ~ 1 0
14 [GK2001] 66 Y*O 11 04 48.4 -77 49 20           ~ 1 0
15 2MASS J11044863-7804441 Y*O 11 04 48.6514791912 -78 04 44.110364088           ~ 4 0
16 [GK2001] 4 Y*O 11 04 58.7462915856 -77 16 58.232725572         16.76 ~ 1 0
17 [GK2001] 5 Y*O 11 05 27.2 -77 33 09           ~ 1 0
18 [GK2001] 67 Y*O 11 05 37.0 -76 51 18           ~ 1 0
19 2MASS J11054105-7638392 Y*O 11 05 41.0472631944 -76 38 39.165418932           ~ 1 0
20 [GK2001] 69 Y*O 11 05 42.6 -77 26 30           ~ 1 0
21 [GK2001] 70 Y*O 11 05 43.0 -77 31 58           ~ 1 0
22 2MASS J11054371-7729113 Y*O 11 05 43.71744 -77 29 11.3856       22.70 20.18 M3V 2 0
23 2MASS J11054386-7721226 Y*O 11 05 43.8270313680 -77 21 22.591061532           ~ 1 0
24 2MASS J11054842-7640158 Y*O 11 05 48.3632063640 -76 40 15.976763976           M 3 0
25 [GK2001] 9 Y*O 11 05 57.8 -76 40 56           ~ 1 0
26 2MASS J11060858-7656016 Y*O 11 06 08.59 -76 56 01.6           ~ 2 0
27 Ass Cha T 2-21 TT* 11 06 15.3471261840 -77 21 56.720362608   12.58 11.01   9.35 G5Ve 131 0
28 2MASS J11061873-7757526 Y*O 11 06 18.73 -77 57 52.6           ~ 1 0
29 2MASS J11062808-7735547 Y*O 11 06 28.08 -77 35 54.7           ~ 1 0
30 2MASS J11063322-7752271 Y*O 11 06 33.1710634752 -77 52 27.246090972           ~ 1 0
31 [GK2001] 72 Y*O 11 06 35.3 -77 21 10           ~ 1 0
32 ISO-ChaI 79 Y*O 11 06 39.4531299120 -77 36 05.253418332         17.83 M5e 28 0
33 2MASS J11063999-7648329 Y*O 11 06 39.9565505616 -76 48 32.932737576           ~ 2 0
34 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1154 1
35 [GK2001] 73 Y*O 11 06 49.4 -77 34 37           ~ 1 0
36 2MASS J11065073-7711326 Y*O 11 06 50.7631047288 -77 11 32.802659772           ~ 1 0
37 [GK2001] 75 Y*O 11 06 54.5 -77 25 54           ~ 1 0
38 [GK2001] 76 Y*O 11 06 59.6 -77 18 29           ~ 1 0
39 2MASS J11070613-7637197 Y*O 11 07 06.1456527144 -76 37 19.836227424           K1.5 4 0
40 [GK2001] 16 Y*O 11 07 18.8 -77 31 56           ~ 1 0
41 [GK2001] 17 Y*O 11 07 27.9 -76 48 35           ~ 1 0
42 2MASS J11074656-7615174 Y*O 11 07 46.5862114680 -76 15 17.398121508         16.84 M5.75e 30 0
43 [GK2001] 19 Y*O 11 07 50.0 -77 38 07           ~ 1 0
44 [GK2001] 77 Y*O 11 07 59.0 -78 00 13           ~ 1 0
45 HD 97048 Ae* 11 08 03.3109731720 -77 39 17.490777444 9.03 8.76 9.00   8.64 A0Vep 543 0
46 BRAN 341B RNe 11 08 03.4 -77 39 19           ~ 27 0
47 2MASS J11082043-7626504 Y*O 11 08 20.4644961792 -76 26 50.391509496           ~ 1 0
48 2MASS J11082259-7649213 Y*O 11 08 22.5745313640 -76 49 21.260291556           ~ 3 0
49 [GK2001] 78 Y*O 11 08 27.3 -77 47 20           ~ 1 0
50 2MASS J11084163-7713204 Y*O 11 08 41.5975157088 -77 13 20.338925232           ~ 1 0
51 2MASS J11084234-7710098 Y*O 11 08 42.3201722112 -77 10 09.816035196           ~ 2 0
52 2MASS J11084432-7613303 Y*O 11 08 44.3530648176 -76 13 30.351131184           ~ 3 0
53 2MASS J11085112-7706446 Y*O 11 08 51.0411193512 -77 06 44.865871020           ~ 1 0
54 [GK2001] 79 Y*O 11 08 51.6 -77 02 30           ~ 1 0
55 [GK2001] 81 Y*O 11 09 08.3 -78 14 25           ~ 1 0
56 [GK2001] 82 Y*O 11 09 18.8 -77 39 37           ~ 1 0
57 OTS 11 Y*O 11 09 24.1 -76 34 57           ~ 6 0
58 2MASS J11092416-7813528 Y*O 11 09 24.1313259696 -78 13 52.735085580           ~ 1 0
59 OTS 14 Y*O 11 09 28.52064 -76 34 45.6456           ~ 2 0
60 2MASS J11093316-7630195 Y*O 11 09 33.1351796616 -76 30 19.599829704           ~ 2 0
61 2MASS J11093392-7753331 Y*O 11 09 33.92 -77 53 33.1           ~ 1 0
62 HD 97300 Ae* 11 09 50.0199904704 -76 36 47.718191232   9.41 9.20   8.82 B9V 176 1
63 2MASS J11095077-7804195 Y*O 11 09 50.78 -78 04 19.6           ~ 1 0
64 ISO-ChaI 217 Y*O 11 09 52.1372780448 -76 39 12.876642648         16.63 ~ 46 0
65 Ced 112 RNe 11 09 52.4 -76 36 57           ~ 32 0
66 [GK2001] 85 Y*O 11 09 52.7 -77 49 08           ~ 1 0
67 ISO-ChaI 220 Y*O 11 09 53.3244652320 -77 28 36.603732468           M5.75 31 0
68 V* HY Cha Or* 11 09 54.3714582264 -76 31 11.437434660     21.6   17.27 M1.75e 27 0
69 [GK2001] 32 Y*O 11 10 01.6 -77 47 47           ~ 1 0
70 [GK2001] 86 Y*O 11 10 01.7 -77 19 20           ~ 1 0
71 [GK2001] 87 Y*O 11 10 04.3 -77 27 15           ~ 1 0
72 [GK2001] 33 Y*O 11 10 04.5 -77 48 22           ~ 1 0
73 2MASS J11100624-7640199 Y*O 11 10 06.25 -76 40 20.0           ~ 1 0
74 [GK2001] 35 Y*O 11 10 16.8 -77 43 44           ~ 1 0
75 [GK2001] 88 Y*O 11 10 17.7 -77 22 18           ~ 1 0
76 [GK2001] 89 Y*O 11 10 19.6 -77 11 20           ~ 1 0
77 [GK2001] 90 Y*O 11 10 24.6 -77 23 06           ~ 1 0
78 [GK2001] 91 Y*O 11 10 26.2 -76 44 09           ~ 1 0
79 [GK2001] 92 Y*O 11 10 29.4 -76 31 12           ~ 1 0
80 [GK2001] 93 Y*O 11 10 29.8 -77 21 12           ~ 1 0
81 [GK2001] 94 Y*O 11 10 37.9 -77 01 39           ~ 1 0
82 [GK2001] 95 Y*O 11 10 39.2 -77 02 48           ~ 1 0
83 [GK2001] 96 Y*O 11 10 45.0072131136 -77 17 04.991953740         18.04 ~ 1 0
84 [GK2001] 36 Y*O 11 10 47.6 -76 32 38           ~ 1 0
85 [GK2001] 37 Y*O 11 10 49.4 -76 38 08           ~ 1 0
86 [GK2001] 38 Y*O 11 10 53.2 -76 16 53           ~ 2 0
87 2MASS J11105705-7713269 Y*O 11 10 57.0735469320 -77 13 26.921978832       20.98 18.73 M4V 2 0
88 [GK2001] 40 Y*O 11 10 58.2 -76 17 56           ~ 3 0
89 2MASS J11110623-7803573 Y*O 11 11 06.2606529744 -78 03 57.235940964           ~ 1 0
90 [GK2001] 41 Y*O 11 11 08.9 -76 49 12           ~ 1 0
91 2MASS J11111182-7644367 Y*O 11 11 11.8096848552 -76 44 36.518338680           ~ 1 0
92 [GK2001] 99 Y*O 11 11 12.3 -76 47 51           ~ 1 0
93 [GK2001] 100 Y*O 11 11 15.6 -78 13 22           ~ 1 0
94 2MASS J11112094-7805193 Y*O 11 11 20.9368888872 -78 05 19.380317244           ~ 3 0
95 [GK2001] 101 Y*O 11 11 21.3 -77 24 15           ~ 1 0
96 2MASS J11112779-7650170 Y*O 11 11 27.7941366216 -76 50 17.165611932           ~ 1 0
97 [GK2001] 102 Y*O 11 11 28.6 -78 05 28           ~ 1 0
98 2MASS J11113003-7810092 Y*O 11 11 30.0432807312 -78 10 09.329961324           ~ 1 0
99 [GK2001] 104 Y*O 11 11 34.3 -76 47 35           ~ 1 0
100 [GK2001] 44 Y*O 11 11 35.7 -76 53 26           ~ 1 0
101 2MASS J11114220-7805204 Y*O 11 11 42.1758684984 -78 05 20.403996936           ~ 1 0
102 [GK2001] 105 Y*O 11 11 47.3 -77 08 12           ~ 1 0
103 [GK2001] 106 Y*O 11 11 48.1 -77 25 46           ~ 1 0
104 [GK2001] 46 Y*O 11 11 48.7 -76 12 21           ~ 1 0
105 [GK2001] 47 Y*O 11 11 54.5 -76 58 29           ~ 1 0
106 [GK2001] 48 Y*O 11 11 57.5 -77 21 57           ~ 1 0
107 [GK2001] 49 Y*O 11 12 03.7 -76 51 33           ~ 1 0
108 [GK2001] 107 Y*O 11 12 05.1 -77 29 58           ~ 1 0
109 [GK2001] 108 Y*O 11 12 13.1 -77 22 37           ~ 1 0
110 [GK2001] 109 Y*O 11 13 02.6 -77 22 08           ~ 1 0
111 [GK2001] 110 Y*O 11 13 23.8 -77 25 28           ~ 1 0
112 2MASS J11132541-7700259 Y*O 11 13 25.4188694544 -77 00 25.889439564           ~ 2 0
113 [GK2001] 51 Y*O 11 13 26.0 -77 00 32           ~ 1 0
114 2MASS J11134255-7755290 Y*O 11 13 42.5551165560 -77 55 28.963863480           ~ 1 0
115 [GK2001] 111 Y*O 11 13 53.1 -77 37 01           ~ 1 0
116 2MASS J11135579-7706343 Y*O 11 13 55.80 -77 06 34.4           ~ 1 0
117 2MASS J11141737-7648195 Y*O 11 14 17.3633950536 -76 48 19.500031440           ~ 1 0
118 2MASS J11142372-7756101 Y*O 11 14 23.7747154104 -77 56 10.025827116           ~ 2 0
119 [GK2001] 53 Y*O 11 14 31.4 -78 06 44           M 3 0
120 2MASS J11150017-7803125 Y*O 11 15 00.2553208440 -78 03 12.082591656           ~ 1 0
121 2MASS J11161328-7725154 Y*O 11 16 13.2773846520 -77 25 15.434943708           K1.5 2 0
122 [GK2001] 115 Y*O 11 16 30.3 -78 05 08           ~ 1 0
123 [GK2001] 116 Y*O 11 16 46.0 -77 37 40           ~ 1 0
124 2MASS J11173656-7745350 Y*O 11 17 36.5443712568 -77 45 34.834711680           ~ 1 0
125 [GK2001] 118 Y*O 11 18 02.2 -77 41 30           ~ 1 0
126 2MASS J11180839-7814109 Y*O 11 18 08.3870357424 -78 14 10.706672976           ~ 1 0
127 NAME Coalsack Nebula DNe 12 31 19 -63 44.6           ~ 262 0
128 NAME Coalsack G2 MoC 12 31 29 -63 44.8           ~ 40 0
129 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3629 1

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