1996A&A...312..569L

Query : 1996A&A...312..569L

1996A&A...312..569L - Astronomy and Astrophysics, volume 312569-584 (1996/8-2)

Dust emission from star-forming regions. IV. Dense cores in the Orion B molecular cloud.

LAUNHARDT R., MEZGER P.G., HASLAM C.G.T., KREYSA E., LEMKE R., SIEVERS A. and ZYLKA R.

Abstract (from CDS):

In a search for isothermal pre-stellar cores and protostars we surveyed with SEST and IRAM MRT part of the Orion B GMC for its λ1.3mm dust emission. We used the CS(2-1) survey by Lada et al. (1991a; LBS) as a search list. We determine the morphology of the detected cloud cores with angular resolutions of 23" (SEST) and 12", respectively. About one half of these cores have a compact core surrounded by an extended envelope. The λ1.3mm dust emission maps were compared with NIR (2.13 µm) and FIR (IRAS) maps to discriminate between isothermal and self-luminous cores. About one half of the cores were classified as isothermal. A comparison of virial masses derived from CS line widths with gas masses derived from λ1.3mm dust emission shows that virial masses are on average by a factor of 20...30 larger. This can be explained by line opacity and by the larger beamwidths (1.8' vs. 23" and 12", respectively) of the CS survey.

Abstract Copyright: ∼

Journal keyword(s): interstellar medium - dust, clouds: individual: Lynds 1630 (LDN 1630) - stars: formation of

Nomenclature: Table 3: [LMH96] LBS NN SM N=10, [LMH96] LBS 36 SMN (Nos SM1-SM2).

CDS comments: Tables 2, 3: LBS NN = LBS 2-NN in SIMBAD.

Simbad objects: 52

goto View the references in ADS

Number of rows : 52
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 LBS 2-40 PoC 05 41 10.1 -01 48 10           ~ 3 0
2 [LMH96] LBS 40 SM smm 05 41 12.6 -01 48 02           ~ 2 0
3 HGBS J054125.2-021807 Y*O 05 41 24.930 -02 18 06.75           ~ 42 0
4 LBS 2-36 PoC 05 41 26.1 -01 48 11           ~ 5 0
5 [LMH96] LBS 36 SM2 smm 05 41 26.7 -02 18 18           ~ 6 0
6 LBS 2-35 PoC 05 41 30.9 -02 24 16           ~ 2 0
7 NGC 2023 RNe 05 41 37.9 -02 15 52           ~ 657 1
8 [LMH96] LBS 34 SM smm 05 41 41.0 -02 17 25           ~ 2 0
9 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
10 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1198 1
11 [MCK88] NGC 2024 FIR 4 Y*O 05 41 44.00 -01 54 42.0           ~ 55 0
12 [LMH96] LBS 33 SM smm 05 41 44.5 -01 55 43           ~ 2 0
13 IRAS 05393-0156 HII 05 41 45.9 -01 54 32           ~ 38 0
14 LBS 2-34 PoC 05 41 47.1 -02 17 17           ~ 3 0
15 IRAS 05399-0121 Y*O 05 42 27.68 -01 20 01.0           ~ 46 0
16 LBS 2-30 PoC 05 42 28.2 -01 20 20           ~ 5 0
17 [LMH96] LBS 30 SM smm 05 42 28.5 -01 19 57           ~ 1 0
18 LBS 2-26 PoC 05 42 56.2 -01 17 40           ~ 2 0
19 LDN 1630 DNe 05 45.5 -00 59           ~ 392 0
20 LBS 2-23 PoC 05 46 07.5 -00 10 24           ~ 14 0
21 IRAS 05435-0011 Y*O 05 46 08.45544 -00 10 02.9568           ~ 91 0
22 [LMH96] LBS 23 SM smm 05 46 08.8 -00 10 40           ~ 2 0
23 LBS 2-17 PoC 05 46 24.0 +00 00 05           ~ 15 0
24 [LMH96] LBS 17 SM smm 05 46 28.7 +00 02 54           ~ 1 0
25 LBS 2-15 PoC 05 46 30.3 +00 28 23           ~ 3 0
26 [LMH96] LBS 15 SM smm 05 46 32.5 +00 28 32           ~ 1 0
27 LBS 2-13 PoC 05 46 38.2 +00 24 22           ~ 5 0
28 LBS 2-10 PoC 05 46 45.1 +00 00 24           ~ 11 0
29 LBS 2-16 PoC 05 46 45.33 +00 02 40.0           ~ 6 0
30 M 78 RNe 05 46 45.8 +00 04 45   8.0       ~ 397 0
31 [LMH96] LBS 10 SM smm 05 46 47.9 +00 00 22           ~ 1 0
32 LBS 2-8 PoC 05 47 04.1 +00 21 42           ~ 5 0
33 NAME NGC 2071 IR SFR 05 47 04.4 +00 21 49           ~ 75 0
34 [PGS81] IRS 1 Y*O 05 47 04.78 +00 21 42.8           ~ 88 0
35 HGBS J054704.8+002145 Y*O 05 47 05.00 +00 21 45.1           ~ 9 0
36 NGC 2071 RNe 05 47 10 +00 18.0           ~ 661 1
37 LBS 2-6 PoC 05 47 25.4 -00 18 17           ~ 3 0
38 IRAS 05450+0019 Or* 05 47 36.67056 +00 20 06.0360           ~ 38 0
39 LBS 2-5 PoC 05 47 37.1 +00 19 30           ~ 3 0
40 [LMH96] LBS 5 SM smm 05 47 37.9 +00 20 15           ~ 1 0
41 NGC 2424 LIN 07 40 39.2939840088 +39 13 59.879590860   13.9       ~ 85 0
42 NAME Ori B GMC MoC ~ ~           ~ 14 0
43 LBS 2-39 PoC ~ ~           ~ 2 0
44 LBS 2-38 PoC ~ ~           ~ 2 0
45 LBS 2-33 PoC ~ ~           ~ 4 0
46 LBS 2-29 PoC ~ ~           ~ 3 0
47 LBS 2-28 PoC ~ ~           ~ 2 0
48 LBS 2-27 PoC ~ ~           ~ 2 0
49 LBS 2-24 PoC ~ ~           ~ 2 0
50 LBS 2-21 PoC ~ ~           ~ 3 0
51 LBS 2-19 PoC ~ ~           ~ 3 0
52 LBS 2-14 PoC ~ ~           ~ 2 0

To bookmark this query, right click on this link: simbad:objects in 1996A&A...312..569L and select 'bookmark this link' or equivalent in the popup menu