2007A&A...474..863D

Query : 2007A&A...474..863D

2007A&A...474..863D - Astronomy and Astrophysics, volume 474, 863-872 (2007/11-2)

Near- and far-infrared counterparts of millimeter dust cores in the Vela molecular ridge cloud D.

DE LUCA M., GIANNINI T., LORENZETTI D., MASSI F., ELIA D. and NISINI B.

Abstract (from CDS):

Identify the young protostellar counterparts associated with dust millimeter cores of the Vela Molecular Ridge Cloud D through new IR observations (H2 narrow-band at 2.12µm and N broad band at 10.4µm) along with an investigation performed on the existing IR catalogues. The association of mm continuum emission with infrared sources from catalogues (IRAS, MSX, 2MASS), JHK data from the literature, and new observations, was established according to spatial coincidence, infrared colours and spectral energy distributions. Only 7 out of 29 resolved mm cores (and 16 out of the 26 unresolved ones) do not exhibit signposts of star formation activity. The other ones are clearly associated with: far-IR sources, H2 jets pointing back to embedded objects not (yet) detected or near-IR objects showing a high intrinsic colour excess. The distribution of the spectral indices pertaining to the associated sources is peaked at values typical of Class I objects, while three objects are signalled as candidates Class 0 sources. Objects with far-IR colours similar to those of T-Tauri and Herbig Ae/Be stars seem to be very few. An additional population of young objects exists associated not with the mm-cores, but with both the diffuse warm dust emission and the gas filaments. We point out the high detection rate (30%) of H2 jets driven by sources located inside the mm-cores. They do not appear to be driven by the most luminous objects in the field, but rather by less luminous objects in young clusters, testifying the co-existence of both low- and intermediate-mass star formation. The presented results reliably describe the young population of VMR-D. However, the statistical evaluation of activity vs. inactivity of the investigated cores, even in good agreement with results found for other star forming regions, seems to reflect the limiting sensitivity of the available facilities rather than any property intrinsic to the mm-condensations.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - infrared: stars - ISM: individual objects: Vela Molecular Ridge - ISM: clouds - catalogs - ISM: jets and outflows

Nomenclature: Table 1, col(id, Timmi2): DGL NN (Nos 1-13).

CDS comments: Table 1 : 2MASS source 2M 16489 not identified. Misprint in delta ? (-43 31 53.63 instead of -43 13 53.63)

Simbad objects: 127

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Number of rows : 127
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 Ass Per OB 1 As* 02 21 +57.6           ~ 174 1
2 Ass Per OB 2 As* 03 42.2 +33 26           ~ 338 0
3 * ups02 Eri PM* 04 35 33.0379612193 -30 33 44.431333529 5.52 4.80 3.82 3.07 2.58 G8+III 100 0
4 * eps Lep PM* 05 05 27.6644072506 -22 22 15.724153311 6.41 4.64 3.18 2.08 1.27 K4III 157 0
5 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1099 1
6 ESO 369-3 AG? 08 02 31.7312514120 -34 30 15.789398256           ~ 12 2
7 NAME Vela-D Molecular Cloud MoC 08 39 -41.0           ~ 49 0
8 MSX6C G263.5925-00.5364 MIR 08 45 28.6 -43 49 59           ~ 1 0
9 DGL 1 PoC 08 45 33.0 -43 50 04           ~ 1 0
10 DGL 2 PoC 08 45 33.0 -43 49 48           ~ 1 0
11 [MDE2007] MMS1 mm 08 45 33.40 -43 50 20.1           ~ 6 0
12 MSX6C G263.5994-00.5236 MIR 08 45 33.4 -43 49 50           ~ 2 0
13 2MASS J08453359-4352259 Y*O 08 45 33.60 -43 52 25.9           ~ 2 0
14 DGL 3 PoC 08 45 34.0 -43 52 26           ~ 1 0
15 [MDE2007] MMS2 mm 08 45 34.80 -43 52 04.1           ~ 8 0
16 IRAS 08438-4340 * 08 45 35.8 -43 51 02           G3III 26 1
17 MSX6C G263.6200-00.5308 MIR 08 45 35.8 -43 51 04           ~ 1 0
18 DGL 4 PoC 08 45 36.0 -43 51 02           ~ 1 0
19 DGL 5 PoC 08 45 38.0 -43 51 14           ~ 1 0
20 [MDE2007] MMS3 mm 08 45 40.10 -43 51 32.3           ~ 5 0
21 MSX6C G263.6385-00.5217 MIR 08 45 42.0 -43 51 36           ~ 1 0
22 MSX6C G263.6329-00.5127 MIR 08 45 43.2 -43 51 00           ~ 1 0
23 MSX6C G263.6366-00.5148 MIR 08 45 43.4 -43 51 15           ~ 1 0
24 [MDE2007] umms1 mm 08 46 25.80 -43 42 26.6           ~ 4 0
25 IRAS 08446-4331 cor 08 46 26.3 -43 42 27           ~ 4 0
26 [MGL99] IRS 17 179 * 08 46 30.41 -43 54 47.5           ~ 2 0
27 MSX6C G263.7867-00.4437 MIR 08 46 33.1 -43 55 37           ~ 1 0
28 [MGL99] IRS 17 40 * 08 46 33.40 -43 54 38.9           ~ 7 0
29 IRAS 08448-4343 cor 08 46 33.8 -43 54 33           ~ 66 1
30 2MASS J08463427-4354490 Y*O 08 46 34.2801840216 -43 54 48.998249136           ~ 4 0
31 [MDE2007] MMS4 mm 08 46 34.60 -43 54 36.0           ~ 7 0
32 [MGL99] IRS 17 57 * 08 46 34.76 -43 54 30.5           ~ 7 0
33 [MDE2007] umms3 mm 08 46 37.20 -43 19 55.6           ~ 3 0
34 [MDE2007] umms2 mm 08 46 37.20 -43 18 34.9           ~ 2 0
35 MSX6C G263.7733-00.4151 MIR 08 46 37.7 -43 53 55           ~ 1 0
36 [MDE2007] umms4 mm 08 46 49.00 -43 20 27.1           ~ 3 0
37 [MDE2007] MMS5 mm 08 46 49.40 -43 53 08.2           ~ 6 0
38 [MDE2007] umms5 mm 08 46 50.40 -43 21 15.1           ~ 2 0
39 [MDE2007] MMS6 mm 08 46 52.30 -43 52 59.9           ~ 3 0
40 [MDE2007] umms6 mm 08 46 56.60 -43 53 07.1           ~ 3 0
41 [MDE2007] umms7 mm 08 47 28.50 -43 27 00.4           ~ 3 0
42 IRAS 08458-4332 IR 08 47 36.95 -43 42 55.3           ~ 6 0
43 [MDE2007] umms8 mm 08 47 37.30 -43 43 40.1           ~ 2 0
44 2MASS J08473786-4343424 * 08 47 37.8652020960 -43 43 42.402704232           ~ 1 0
45 [MDE2007] umms9 mm 08 47 39.50 -43 43 48.0           ~ 2 0
46 [MDE2007] umms10 mm 08 47 41.00 -43 26 28.3           ~ 4 0
47 [MDE2007] umms11 mm 08 47 42.50 -43 43 39.1           ~ 5 0
48 MSX6C G263.7651-00.1572 Y*O 08 47 42.838 -43 43 48.29           ~ 3 0
49 2MASS J08474293-4343480 NIR 08 47 42.93 -43 43 48.1           ~ 1 0
50 DGL 6 PoC 08 47 43.0 -43 43 48           ~ 1 0
51 [MDE2007] umms12 mm 08 47 46.80 -43 25 55.4           ~ 3 0
52 [MDE2007] umms13 mm 08 47 55.70 -43 39 41.5           ~ 2 0
53 [MDE2007] umms14 mm 08 47 57.90 -43 38 59.6           ~ 3 0
54 [MDE2007] MMS7 mm 08 47 58.80 -43 39 47.9           ~ 4 0
55 [MDE2007] umms15 mm 08 48 02.40 -43 39 15.5           ~ 2 0
56 IRAS 08464-4335 cor 08 48 15.5 -43 47 15           ~ 5 0
57 [MDE2007] umms16 mm 08 48 15.70 -43 47 07.8           ~ 5 0
58 [MDE2007] umms17 mm 08 48 23.00 -43 31 31.1           ~ 2 0
59 [MDE2007] umms18 mm 08 48 26.70 -43 31 39.7           ~ 3 0
60 [MDE2007] umms19 mm 08 48 33.10 -43 30 43.9           ~ 4 0
61 2MASS J08483394-4330471 Y*O 08 48 33.95 -43 30 47.2           ~ 3 0
62 [MDE2007] umms20 mm 08 48 35.50 -43 30 59.8           ~ 3 0
63 [MDE2007] umms22 mm 08 48 36.60 -43 16 51.2           ~ 4 0
64 [MDE2007] umms21 mm 08 48 36.80 -43 31 13.8           ~ 2 0
65 2MASS J08483912-4331313 Y*O 08 48 39.12 -43 31 31.4           ~ 2 0
66 [MDE2007] MMS8 mm 08 48 39.40 -43 31 23.9           ~ 3 0
67 [MDE2007] MMS10 mm 08 48 43.00 -43 37 08.0           ~ 3 0
68 [MDE2007] MMS9 mm 08 48 43.00 -43 31 48.0           ~ 5 0
69 [MDE2007] MMS11 mm 08 48 45.10 -43 37 40.1           ~ 3 0
70 2MASS J08484653-4337440 Y*O 08 48 46.54 -43 37 44.0           ~ 2 0
71 IRAS 08470-4321 cor 08 48 48.2 -43 32 25           ~ 46 0
72 [MGL99] IRS 19 49 * 08 48 48.50 -43 32 29.0           ~ 2 0
73 2MASS J08484863-4332290 Y*O 08 48 48.64 -43 32 29.1           ~ 9 0
74 DGL 7 PoC 08 48 49.0 -43 32 29           ~ 1 0
75 [MDE2007] MMS12 mm 08 48 49.00 -43 32 28.0           ~ 6 0
76 [MDE2007] MMS13 mm 08 48 49.70 -43 33 15.9           ~ 2 0
77 [MGL99] IRS 19 2 * 08 48 50.03 -43 33 19.4           ~ 2 0
78 [MDE2007] MMS14 mm 08 48 51.10 -43 31 08.1           ~ 5 0
79 [MDE2007] MMS15 mm 08 48 52.60 -43 30 28.1           ~ 3 0
80 [MDE2007] MMS16 mm 08 48 53.30 -43 31 00.1           ~ 6 0
81 [MDE2007] MMS17 mm 08 48 57.80 -43 38 28.0           ~ 6 0
82 IRAS 08472-4326A cor 08 49 02.9 -43 38 03           ~ 5 0
83 DGL 8 PoC 08 49 03.0 -43 37 55           ~ 1 0
84 [MDE2007] MMS18 mm 08 49 03.60 -43 38 12.1           ~ 4 0
85 MSX6C G263.8432+00.0945 MIR 08 49 04.1 -43 37 57           ~ 1 0
86 2MASS J08490848-4335377 Y*O 08 49 08.4974504688 -43 35 38.028445548           ~ 2 0
87 [MDE2007] MMS19 mm 08 49 08.90 -43 35 48.1           ~ 4 0
88 [MDE2007] MMS20 mm 08 49 11.80 -43 35 24.0           ~ 4 0
89 DGL 9 PoC 08 49 12.0 -43 35 52           ~ 1 0
90 [MDE2007] MMS21 mm 08 49 13.20 -43 36 28.1           ~ 6 0
91 IRAS 08474-4325 cor 08 49 13.272 -43 36 29.60           ~ 7 0
92 2MASS J08491338-4336292 NIR 08 49 13.39 -43 36 29.2           ~ 1 0
93 MSX6C G263.8221+00.1494 MIR 08 49 13.8 -43 34 53           ~ 1 0
94 IRAS 08474-4323 MIR 08 49 15.14976 -43 34 54.1344           ~ 1 0
95 [MDE2007] umms23 mm 08 49 24.20 -43 13 13.4           ~ 3 0
96 2MASS J08492456-4313154 NIR 08 49 24.56 -43 13 15.5           ~ 1 0
97 MSX6C G263.5672+00.4036 MIR 08 49 25.6 -43 13 24           ~ 1 0
98 IRAS 08476-4306 cor 08 49 25.9 -43 17 10           ~ 27 0
99 DGL 10 PoC 08 49 26.0 -43 17 21           ~ 1 0
100 DGL 11 PoC 08 49 26.0 -43 17 12           ~ 1 0
101 [MGL99] IRS 20 98 * 08 49 26.23 -43 17 11.0           ~ 3 0
102 MSX6C G263.6177+00.3652 NIR 08 49 26.36 -43 17 12.5           ~ 3 0
103 [MDE2007] umms24 mm 08 49 27.10 -43 12 33.5           ~ 3 0
104 [MDE2007] MMS22 mm 08 49 27.40 -43 17 08.2           ~ 5 0
105 [MDE2007] umms25 mm 08 49 27.80 -43 12 17.3           ~ 2 0
106 MSX6C G263.5622+00.4185 MIR 08 49 28.3 -43 12 36           ~ 1 0
107 [MDE2007] MMS23 mm 08 49 29.50 -44 04 36.1           ~ 5 0
108 [MDE2007] MMS25 mm 08 49 31.00 -44 10 44.1           ~ 3 0
109 [MDE2007] MMS24 mm 08 49 31.00 -43 17 08.2           ~ 3 0
110 [MGL99] IRS 20 90 * 08 49 32.26 -43 17 14.3           ~ 2 0
111 IRAS 08477-4359 cor 08 49 32.3 -44 10 46           ~ 20 0
112 MSX6C G264.3225-00.1857 MIR 08 49 32.6 -44 10 52           ~ 1 0
113 DGL 12 PoC 08 49 33.0 -44 11 00           ~ 1 0
114 MSX6C G263.6280+00.3847 MIR 08 49 33.4 -43 16 56           ~ 1 0
115 [MDE2007] MMS26 mm 08 49 33.80 -44 10 59.9           ~ 5 0
116 [MDE2007] MMS27 mm 08 49 34.60 -44 11 56.0           ~ 4 0
117 DGL 13 PoC 08 49 36.0 -44 11 46           ~ 1 0
118 [MDE2007] umms26 mm 08 49 59.00 -43 22 55.6           ~ 4 0
119 MSX6C G263.6909+00.4713 MIR 08 50 08.7 -43 16 34           ~ 1 0
120 [MDE2007] MMS28 mm 08 50 09.40 -43 16 27.8           ~ 4 0
121 IRAS 08483-4305 IR 08 50 09.6 -43 16 42           ~ 2 0
122 2MASS J08501104-4317107 Y*O 08 50 11.04 -43 17 10.7           ~ 2 0
123 [MDE2007] MMS29 mm 08 50 12.20 -43 17 16.1           ~ 4 0
124 NAME VELA MOL RIDGE MoC 08 53 -45.0           ~ 155 0
125 NAME Vela C Cld 08 57 -43.2           ~ 179 0
126 * tet Cen PM* 14 06 40.94752 -36 22 11.8371 3.94 3.04 2.05 1.29 0.76 K0-IIIb 252 1
127 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1331 1

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