2006AJ....132.1692B

Query : 2006AJ....132.1692B

2006AJ....132.1692B - Astron. J., 132, 1692-1706 (2006/October-0)

Deep near-infrared imaging toward the Vela molecular ridge C. II. New protostars and embedded clusters in Vela C.

BABA D., SATO S., NAGASHIMA C., NISHIYAMA S., KATO D., HABA Y., NAGATA T., NAGAYAMA T., TAMURA M. and SUGITANI K.

Abstract (from CDS):

We present new candidates for protostars and embedded clusters detected in our deep near-infrared (J, H, KS) imaging survey of cloud C of the Vela Molecular Ridge (Vela C). We selected protostar candidates on the basis of positional coincidences with Midcourse Space Experiment (MSX) and/or IRAS sources and the slopes of their spectral energy distributions from 2 to 25 µm. For embedded clusters, we selected them on the basis of positional coincidence with MSX and/or IRAS sources and enhancement of stellar number densities. We identified 31 sources as protostar candidates and 5 clusters as embedded clusters; 28 protostar candidates and 3 embedded clusters were newly identified. Most of them are associated with the C18O clumps distributed throughout Vela C. We calculated the bolometric luminosities of the protostar candidates by integrating the observed fluxes from near- to far-infrared, and then estimated the mass range to be from 0.9 to 4.0 M☉, assuming their ages at the birth line. There is a correlation between the number of members and the KSmagnitude of the brightest star in the embedded clusters.

Abstract Copyright: ∼

Journal keyword(s): Infrared: Stars - ISM: individual (Vela Molecular Ridge) - Stars: Formation

Nomenclature: Table 1: [BSN2006] NN (Nos 1-31). Table 3: [BSN2006] R (Nos I-V).

Simbad objects: 54

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Number of rows : 54
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 348 OpC 03 44 31.7 +32 09 32           ~ 1395 1
2 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1621 1
3 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1154 1
4 Ass Mon R 2 As* 06 07 47.8 -06 22 55           ~ 47 1
5 NAME Vela-D Molecular Cloud MoC 08 39 -41.0           ~ 49 0
6 NAME VELA MOL RIDGE MoC 08 53 -45.0           ~ 156 0
7 NAME Vela C Cld 08 57 -43.2           ~ 179 0
8 2MASS J08572524-4255530 Y*? 08 57 25.25 -42 55 53.0           ~ 2 0
9 IRAS 08557-4323 HII 08 57 35.1 -43 35 37           ~ 3 0
10 MSX5C G264.1392+01.9288 * 08 57 49.3281064584 -42 40 48.890067348           ~ 1 0
11 IRAS 08563-4225 Cl* 08 58 12.5 -42 37 34           ~ 12 0
12 IRAS 08568-4232 Y*O 08 58 42.61896 -42 44 33.0828           ~ 3 0
13 IRAS 08569-4230 MIR 08 58 46.47696 -42 42 24.1812           ~ 2 0
14 RCW 36 HII 08 59 00.9 -43 44 10     15.20     ~ 147 0
15 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 305 2
16 IRAS 08572-4322 * 08 59 07.78824 -43 34 26.9688           ~ 1 0
17 IRAS 08574-4223 MIR 08 59 19.01112 -42 35 06.6984           ~ 1 0
18 MSX5C G265.1485+01.4474 HII 08 59 25.2 -43 45 46           ~ 33 1
19 NAME RCW 36 IR Cluster OpC 08 59 26 -43 45.1           ~ 5 0
20 IRAS 08576-4320 HII 08 59 26.1 -43 32 04           ~ 3 0
21 [MHL2007] G264.9032+01.6584 1 Y*? 08 59 26.41 -43 26 13.4           ~ 11 0
22 MSX5C G265.1502+01.4417 Cl* 08 59 27.5 -43 45 27           ~ 1 1
23 MSX5C G265.1583+01.4312 Cl* 08 59 27.5 -43 45 27           ~ 1 0
24 IRAS 08580-4415 * 08 59 48.972 -44 27 37.26           ~ 1 0
25 IRAS 08580-4339 Cld 08 59 50.4 -43 51 06           ~ 2 0
26 MSX5C G265.7032+01.0629 NIR 08 59 51.35 -44 25 51.4           ~ 1 0
27 [MHL2007] G265.3344+01.3916 1 Y*? 08 59 53.46 -43 56 12.6           ~ 4 0
28 IRAS 08581-4422 Y*O 08 59 56.19360 -44 33 52.5960           ~ 3 0
29 IRAS 08583-4337 * 09 00 05.5 -43 49 20           ~ 1 0
30 MSX5C G265.4865+01.3474 NIR 09 00 15.42 -44 04 51.6           ~ 2 0
31 MSX5C G265.4305+01.4187 MIR 09 00 21.1 -43 59 30           ~ 2 0
32 2MASX J09002592-4500034 Cl* 09 00 25.920 -45 00 03.49           ~ 1 0
33 MSX5C G265.5307+01.3540 MIR 09 00 26.8 -44 06 36           ~ 2 0
34 IRAS 08587-4419 * 09 00 31.4 -44 31 18           A1 3 0
35 IRAS 08587-4352 MIR 09 00 32.18544 -44 04 32.6820           ~ 2 0
36 MSX5C G266.1034+00.8884 MIR 09 00 35.8 -44 50 51           ~ 1 0
37 MSX5C G265.8190+01.1418 MIR 09 00 36.9 -44 27 59           ~ 1 0
38 IRAS 08588-4347 Y*? 09 00 38.25 -43 59 34.2           ~ 7 0
39 IRAS 08589-4423 Y*O 09 00 39.81576 -44 35 09.7332           ~ 4 0
40 [BSN2006] 25 RNe 09 00 50.7 -44 40 00           ~ 2 0
41 [MHL2007] G266.2270+00.8766 1 Y*? 09 01 00.41 -44 56 54.2           ~ 3 0
42 [MHL2007] G266.2856+00.8533 1 Y*? 09 01 07.58 -45 00 28.0           ~ 3 0
43 2MASX J09012563-4437363 Cl* 09 01 25.631 -44 37 36.30           ~ 1 0
44 MSX5C G266.2836+00.9249 Cl* 09 01 25.8 -44 57 42           ~ 1 0
45 MSX5C G266.3267+00.9389 MIR 09 01 38.6 -44 58 54           ~ 2 0
46 MSX5C G265.8799+01.3353 MIR 09 01 39.3 -44 23 05           ~ 1 0
47 [BSN2006] 26 RNe 09 01 59.0 -44 45 23           ~ 3 0
48 [BSN2006] 27 ISM 09 02 15.2 -44 50 22           ~ 8 0
49 NAME Vela B MoC 09 04 -48.0           ~ 29 0
50 NAME Vela A MoC 09 18 -48.0           ~ 31 0
51 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3636 1
52 HBC 672 Em* 18 29 56.8848005064 +01 14 46.304766672   17.6       K8.0 102 0
53 EM* LkHA 234 Ae* 21 43 06.8218113480 +66 06 54.202272804 13.65 13.61 12.73 11.98 11.20 B5Ve 286 0
54 NAME Cep C SFR 23 05 50.0 +62 30 01           ~ 35 0

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