2004A&A...422..141C

Query : 2004A&A...422..141C

2004A&A...422..141C - Astronomy and Astrophysics, volume 422141-158 (2004/7-4)

Physical and kinematical properties of a newly discovered star cluster and its associated jet in the Vela Molecular Clouds.

CARATTI O GARATTI A., GIANNINI T., LORENZETTI D., MASSI F., NISINI B. and VITALI F.

Abstract (from CDS):

The star forming region associated with IRAS 08211-4158 and located in the Vela Molecular Ridge (VMR) has been investigated with low (R≃600) and high resolution (R≃9000) near infrared spectroscopy (1-2.5µm) together with narrow band ([FeII] and H2) and broad band (H, K, L, M) imaging. The photometric results allow us to identify for the first time a young cluster with the less evolved star lying toward its center. Our results confirm that the most massive stars found in the clusters of the VMR do not form before the low mass ones. In particular, the only bipolar jet detected across the investigated field is driven by the most massive object which lacks an optical counterpart. Such a jet is composed of individual knots showing several H2 and [FeII] emission lines indicative of a coexistence of different shocks responsible for their excitation. Physical parameters of the emitting gas such as electron density, extinction and temperature have been derived from the low resolution spectroscopy. Some knots are already thermalized, while other present a stratification of temperature up to values of 5000K. Through high resolution spectroscopy the [FeII] lines profile for the majority of the knots can be resolved in a double peaked structure which is consistent with bow shock model predictions. Moreover, the radial velocity component is determined for different knots. Finally, by comparing [FeII] images taken in different epochs, we have been able to derive the proper motion for some knots, hence to evaluate their total velocity (∼300km/s), the dynamical age and the jet inclination with respect to the plane of the sky.

Abstract Copyright: ∼

Journal keyword(s): stars: circumstellar matter - ISM: jets and outflows - ISM: kinematics and dynamics - ISM: individual objects: Vela molecular clouds - ISM: individual objects: IRAS 08211-4158 - ISM: individual objects: HH219 - infrared: ISM: lines

VizieR on-line data: <Available at CDS (J/A+A/422/141): table2.dat>

Nomenclature: Table 2: [CGL2004] NNN (Nos 1-151). Table 3: [LGV2002] IRS 8 ANN (Nos B0, B8-B13, R0, R7-R9) added.

Simbad objects: 179

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Number of rows : 179
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 [CGL2004] 77 * 08 22 46.57 -42 08 09.3           ~ 1 0
2 2MASS J08224671-4207102 * 08 22 46.72 -42 07 10.3           ~ 1 0
3 [CGL2004] 97 * 08 22 46.86 -42 07 29.7           ~ 1 0
4 [CGL2004] 126 * 08 22 47.16 -42 06 58.0           ~ 1 0
5 [CGL2004] 79 * 08 22 47.3283221112 -42 08 03.136568784           ~ 1 0
6 [CGL2004] 67 * 08 22 47.41 -42 08 32.5           ~ 1 0
7 [CGL2004] 64 * 08 22 47.53 -42 08 34.9           ~ 1 0
8 [CGL2004] 85 * 08 22 47.57 -42 07 49.7           ~ 1 0
9 [CGL2004] 72 * 08 22 47.69 -42 08 20.2           ~ 1 0
10 2MASS J08224787-4207414 * 08 22 47.88 -42 07 41.4           ~ 1 0
11 2MASS J08224806-4207264 * 08 22 48.07 -42 07 26.5           ~ 1 0
12 [CGL2004] 61 * 08 22 48.21 -42 08 40.4           ~ 1 0
13 [CGL2004] 122 * 08 22 48.2357930112 -42 06 59.495365368           ~ 1 0
14 [CGL2004] 91 * 08 22 48.32 -42 07 36.3           ~ 1 0
15 [CGL2004] 143 * 08 22 48.35 -42 07 41.1           ~ 1 0
16 2MASS J08224870-4207049 * 08 22 48.6989864496 -42 07 04.709381268           ~ 1 0
17 [CGL2004] 141 * 08 22 48.70 -42 07 44.7           ~ 1 0
18 [CGL2004] 139 * 08 22 48.73 -42 08 08.6           ~ 1 0
19 [CGL2004] 81 * 08 22 48.8394862080 -42 07 56.474808420           ~ 1 0
20 2MASS J08224891-4206490 * 08 22 48.91 -42 06 49.0           ~ 1 0
21 [CGL2004] 128 * 08 22 49.19 -42 06 55.7           ~ 1 0
22 [CGL2004] 73 * 08 22 49.20 -42 08 18.6           ~ 1 0
23 [CGL2004] 123 * 08 22 49.27 -42 07 00.4           ~ 1 0
24 [CGL2004] 99 * 08 22 49.28 -42 07 28.2           ~ 1 0
25 [CGL2004] 63 * 08 22 49.4045612712 -42 08 35.189311632           ~ 1 0
26 [CGL2004] 93 * 08 22 49.52 -42 07 31.7           ~ 1 0
27 [CGL2004] 53 * 08 22 49.54 -42 08 57.5           ~ 1 0
28 2MASS J08224956-4207428 * 08 22 49.56 -42 07 42.8           ~ 1 0
29 [CGL2004] 32 * 08 22 49.61 -42 08 19.4           ~ 1 0
30 [CGL2004] 45 * 08 22 49.78 -42 07 33.7           ~ 1 0
31 [CGL2004] 43 * 08 22 49.80 -42 07 35.6           ~ 1 0
32 [CGL2004] 56 * 08 22 49.87 -42 08 50.2           ~ 1 0
33 [CGL2004] 146 * 08 22 49.87 -42 07 29.5           ~ 1 0
34 [CGL2004] 51 * 08 22 49.93 -42 07 35.7           ~ 1 0
35 [CGL2004] 118 * 08 22 50.00 -42 07 03.9           ~ 1 0
36 2MASS J08225003-4208075 * 08 22 50.03 -42 08 07.5           ~ 1 0
37 [CGL2004] 13 * 08 22 50.06 -42 08 02.0           ~ 1 0
38 [CGL2004] 39 * 08 22 50.06 -42 07 49.0           ~ 1 0
39 [CGL2004] 31 * 08 22 50.13 -42 08 20.4           ~ 1 0
40 [CGL2004] 36 * 08 22 50.26 -42 08 00.7           ~ 1 0
41 [CGL2004] 40 * 08 22 50.38 -42 07 37.9           ~ 1 0
42 [CGL2004] 27 * 08 22 50.41 -42 07 35.4           ~ 1 0
43 [CGL2004] 38 * 08 22 50.43 -42 07 51.8           ~ 1 0
44 [CGL2004] 33 * 08 22 50.46 -42 08 09.0           ~ 1 0
45 [CGL2004] 57 * 08 22 50.54 -42 08 49.7           ~ 1 0
46 [CGL2004] 7 * 08 22 50.56 -42 08 10.7           ~ 1 0
47 [CGL2004] 35 * 08 22 50.56 -42 08 03.8           ~ 1 0
48 [CGL2004] 50 * 08 22 50.70 -42 07 55.2           ~ 1 0
49 2MASS J08225081-4208156 * 08 22 50.81 -42 08 15.6           ~ 1 0
50 2MASS J08225081-4207413 * 08 22 50.81 -42 07 41.3           ~ 1 0
51 2MASS J08225083-4206595 * 08 22 50.83 -42 06 59.6           ~ 1 0
52 [CGL2004] 104 * 08 22 50.87 -42 07 19.6           ~ 1 0
53 [LGV2002] IRS 8 R7 PoC 08 22 50.9 -42 07 19           ~ 1 0
54 [CGL2004] 62 * 08 22 50.92 -42 08 37.5           ~ 1 0
55 2MASS J08225092-4208289 * 08 22 50.92 -42 08 29.0           ~ 1 0
56 [CGL2004] 15 * 08 22 50.92 -42 07 57.8           ~ 1 0
57 [CGL2004] 106 * 08 22 51.09 -42 07 18.3           ~ 1 0
58 [CGL2004] 135 * 08 22 51.10 -42 08 41.6           ~ 1 0
59 [CGL2004] 60 * 08 22 51.11 -42 08 45.8           ~ 1 0
60 [CGL2004] 28 * 08 22 51.20 -42 08 26.3           ~ 1 0
61 [CGL2004] 120 * 08 22 51.22 -42 07 00.9           ~ 1 0
62 [CGL2004] 111 * 08 22 51.23 -42 07 13.6           ~ 1 0
63 [CGL2004] 65 * 08 22 51.30 -42 08 33.9           ~ 1 0
64 [LGV2002] IRS 8 R9 PoC 08 22 51.3 -42 07 40           ~ 1 0
65 [LGV2002] IRS 8 R8 PoC 08 22 51.4 -42 07 33           ~ 1 0
66 [CGL2004] 144 * 08 22 51.50 -42 07 29.8           ~ 1 0
67 [CGL2004] 110 * 08 22 51.50 -42 07 13.7           ~ 1 0
68 [CGL2004] 19 * 08 22 51.53 -42 07 49.6           ~ 1 0
69 [CGL2004] 147 * 08 22 51.54 -42 07 27.5           ~ 1 0
70 [CGL2004] 130 * 08 22 51.54 -42 06 52.3           ~ 1 0
71 2MASS J08225157-4208125 * 08 22 51.57 -42 08 12.6           ~ 1 0
72 [CGL2004] 26 * 08 22 51.62 -42 07 36.4           ~ 1 0
73 [CGL2004] 18 * 08 22 51.70 -42 07 50.7           ~ 1 0
74 [LGV2002] IRS 8 R0 PoC 08 22 51.7 -42 07 41           ~ 1 0
75 [CGL2004] 113 * 08 22 51.70 -42 07 11.3           ~ 1 0
76 [CGL2004] 125 * 08 22 51.7429956072 -42 06 56.756129256           ~ 1 0
77 [CGL2004] 100 * 08 22 51.77 -42 07 27.1           ~ 1 0
78 [CGL2004] 12 * 08 22 51.79 -42 08 03.1           ~ 1 0
79 [CGL2004] 20 * 08 22 51.80 -42 07 49.4           ~ 1 0
80 [CGL2004] 8 * 08 22 51.91 -42 08 09.1           ~ 1 0
81 [CGL2004] 95 * 08 22 51.94 -42 07 30.4           ~ 1 0
82 [CGL2004] 17 * 08 22 51.95 -42 07 52.3           ~ 1 0
83 [CGL2004] 24 * 08 22 51.97 -42 07 43.2           ~ 1 0
84 [CGL2004] 58 * 08 22 52.0334903592 -42 08 45.714602508           ~ 1 0
85 [LLN92] IRS 8-2 Y*O 08 22 52.1 -42 07 55           ~ 2 0
86 [CGL2004] 127 * 08 22 52.10 -42 06 56.9           ~ 1 0
87 [CGL2004] 151 * 08 22 52.11 -42 06 50.6           ~ 1 0
88 [CGL2004] 16 * 08 22 52.14 -42 07 55.2           ~ 1 0
89 [CGL2004] 148 * 08 22 52.16 -42 07 20.9           ~ 1 0
90 [CGL2004] 22 * 08 22 52.19 -42 07 44.7           ~ 1 0
91 [CGL2004] 44 * 08 22 52.20 -42 07 33.9           ~ 1 0
92 2MASS J08225225-4207124 * 08 22 52.26 -42 07 12.5           ~ 1 0
93 [CGL2004] 47 * 08 22 52.28 -42 08 02.1           ~ 1 0
94 IRAS 08211-4158 SFR 08 22 52.3 -42 07 57           ~ 26 0
95 [CGL2004] 37 * 08 22 52.34 -42 07 54.6           ~ 1 0
96 [CGL2004] 41 * 08 22 52.34 -42 07 37.2           ~ 1 0
97 [CGL2004] 21 * 08 22 52.39 -42 07 46.5           ~ 1 0
98 [LGV2002] IRS 8 B13 PoC 08 22 52.5 -42 08 06           ~ 1 0
99 [CGL2004] 11 * 08 22 52.51 -42 08 04.9           ~ 1 0
100 [LGV2002] IRS 8 B0 PoC 08 22 52.7 -42 08 12           ~ 1 0
101 2MASS J08225273-4208192 * 08 22 52.73 -42 08 19.2           ~ 1 0
102 [CGL2004] 94 * 08 22 52.74 -42 07 30.7           ~ 1 0
103 [CGL2004] 42 * 08 22 52.76 -42 07 36.2           ~ 1 0
104 [CGL2004] 149 * 08 22 52.79 -42 06 55.2           ~ 1 0
105 [CGL2004] 10 * 08 22 53.06 -42 08 07.7           ~ 1 0
106 [CGL2004] 103 * 08 22 53.12 -42 07 21.3           ~ 1 0
107 2MASS J08225324-4207560 * 08 22 53.24 -42 07 56.0           ~ 1 0
108 [LGV2002] IRS 8 B8 PoC 08 22 53.4 -42 08 40           ~ 1 0
109 [LGV2002] IRS 8 B9 PoC 08 22 53.5 -42 08 43           ~ 1 0
110 [LGV2002] IRS 8 B11 PoC 08 22 53.5 -42 08 43           ~ 1 0
111 [CGL2004] 46 * 08 22 53.65 -42 08 06.1           ~ 1 0
112 [CGL2004] 6 * 08 22 53.6619237720 -42 08 12.246633960           ~ 1 0
113 [CGL2004] 14 * 08 22 53.67 -42 08 00.0           ~ 1 0
114 [CGL2004] 115 * 08 22 53.6799290952 -42 07 05.613377412           ~ 1 0
115 [CGL2004] 52 * 08 22 53.68 -42 07 53.2           ~ 1 0
116 [LGV2002] IRS 8 B1 PoC 08 22 53.7 -42 08 53           ~ 2 0
117 [LGV2002] IRS 8 B12 PoC 08 22 53.8 -42 08 35           ~ 1 0
118 [CGL2004] 89 * 08 22 53.89 -42 07 39.4           ~ 1 0
119 [LGV2002] IRS 8 B5 PoC 08 22 53.9 -42 08 45           ~ 2 0
120 [LGV2002] IRS 8 B7 PoC 08 22 53.9 -42 08 36           ~ 2 0
121 [LGV2002] IRS 8 B10 PoC 08 22 54.0 -42 08 49           ~ 1 0
122 [CGL2004] 66 * 08 22 54.0347876640 -42 08 32.607495780           ~ 1 0
123 [CGL2004] 29 * 08 22 54.04 -42 08 21.7           ~ 1 0
124 HH 219 HH 08 22 54.044 -42 08 47.19           ~ 9 1
125 2MASS J08225417-4207292 * 08 22 54.18 -42 07 29.2           ~ 1 0
126 [LGV2002] IRS 8 B2 PoC 08 22 54.2 -42 08 50           ~ 2 0
127 [LGV2002] IRS 8 B3 PoC 08 22 54.2 -42 08 49           ~ 2 0
128 [LGV2002] IRS 8 B4 PoC 08 22 54.2 -42 08 48           ~ 2 0
129 [LGV2002] IRS 8 B6 PoC 08 22 54.2 -42 08 42           ~ 2 0
130 [CGL2004] 134 * 08 22 54.26 -42 08 55.5           ~ 1 0
131 [CGL2004] 49 * 08 22 54.35 -42 07 55.1           ~ 1 0
132 [CGL2004] 124 * 08 22 54.39 -42 06 58.5           ~ 1 0
133 [CGL2004] 129 * 08 22 54.39 -42 06 54.0           ~ 1 0
134 [CGL2004] 30 * 08 22 54.41 -42 08 21.0           ~ 1 0
135 [CGL2004] 107 * 08 22 54.42 -42 07 17.4           ~ 1 0
136 [CGL2004] 137 * 08 22 54.43 -42 08 26.1           ~ 1 0
137 [CGL2004] 131 * 08 22 54.45 -42 06 50.8           ~ 1 0
138 [CGL2004] 4 * 08 22 54.6972309504 -42 08 15.224578404           ~ 1 0
139 [CGL2004] 90 * 08 22 54.77 -42 07 39.1           ~ 1 0
140 [CGL2004] 105 * 08 22 54.80 -42 07 19.1           ~ 1 0
141 [CGL2004] 108 * 08 22 54.84 -42 07 15.7           ~ 1 0
142 [CGL2004] 92 * 08 22 54.92 -42 07 33.6           ~ 1 0
143 [CGL2004] 136 * 08 22 54.97 -42 08 27.7           ~ 1 0
144 2MASS J08225525-4207591 * 08 22 55.25 -42 07 59.2           ~ 1 0
145 [CGL2004] 74 * 08 22 55.38 -42 08 17.4           ~ 1 0
146 [CGL2004] 76 * 08 22 55.42 -42 08 15.3           ~ 1 0
147 [CGL2004] 86 * 08 22 55.56 -42 07 47.1           ~ 1 0
148 [CGL2004] 98 * 08 22 55.7274233352 -42 07 27.981020856           ~ 1 0
149 [CGL2004] 78 * 08 22 55.95 -42 08 04.9           ~ 1 0
150 [CGL2004] 119 * 08 22 55.99 -42 07 02.5           ~ 1 0
151 [CGL2004] 34 * 08 22 56.11 -42 08 08.3           ~ 1 0
152 [CGL2004] 82 * 08 22 56.13 -42 07 56.1           ~ 1 0
153 [CGL2004] 83 * 08 22 56.23 -42 07 52.5           ~ 1 0
154 2MASS J08225643-4208503 * 08 22 56.43 -42 08 50.4           ~ 1 0
155 [CGL2004] 142 * 08 22 56.43 -42 07 42.1           ~ 1 0
156 2MASS J08225643-4207214 * 08 22 56.43 -42 07 21.5           ~ 1 0
157 [CGL2004] 145 * 08 22 56.66 -42 07 28.7           ~ 1 0
158 2MASS J08225689-4208231 * 08 22 56.89 -42 08 23.1           ~ 1 0
159 [CGL2004] 84 * 08 22 56.9514817320 -42 07 51.012876504           ~ 1 0
160 [CGL2004] 116 * 08 22 57.47 -42 07 05.5           ~ 1 0
161 [CGL2004] 109 * 08 22 57.48 -42 07 14.9           ~ 1 0
162 [CGL2004] 69 * 08 22 57.5895941592 -42 08 26.982397392           ~ 1 0
163 [CGL2004] 88 * 08 22 57.68 -42 07 40.2           ~ 1 0
164 [CGL2004] 55 * 08 22 57.70 -42 08 49.5           ~ 1 0
165 [CGL2004] 132 * 08 22 57.72 -42 06 49.7           ~ 1 0
166 [CGL2004] 150 * 08 22 57.90 -42 06 49.9           ~ 1 0
167 [CGL2004] 140 * 08 22 57.93 -42 07 54.6           ~ 1 0
168 [CGL2004] 138 * 08 22 58.05 -42 08 23.2           ~ 1 0
169 [CGL2004] 75 * 08 22 58.24 -42 08 16.6           ~ 1 0
170 [CGL2004] 71 * 08 22 58.39 -42 08 19.6           ~ 1 0
171 [CGL2004] 59 * 08 22 58.44 -42 08 45.2           ~ 1 0
172 [CGL2004] 68 * 08 22 58.4550620448 -42 08 28.588606296           ~ 1 0
173 HD 75211 SB* 08 47 01.5921294816 -44 04 28.848481212 7.35 7.90 7.50 8.28   O8.5II((f)) 99 0
174 HD 75223 * 08 47 21.9725590104 -39 47 59.119125288   7.50 7.20     A1V 25 0
175 NAME VELA MOL RIDGE MoC 08 53 -45.0           ~ 178 0
176 NAME Vela C Cld 08 57 -43.2           ~ 193 0
177 W51H2 J192339.7+143131 PoC 19 23 39.7 +14 31 31           ~ 3 0
178 W 51 SNR 19 23 50 +14 06.0           ~ 1352 1
179 NAME IRAS 08211-4158 Cluster Cl* ~ ~           ~ 1 0

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