2011ApJ...728...99S

Query : 2011ApJ...728...99S

2011ApJ...728...99S - Astrophys. J., 728, 99 (2011/February-3)

The galactic magnetic field's effect in star-forming regions.

STEPHENS I.W., LOONEY L.W., DOWELL C.D., VAILLANCOURT J.E. and TASSIS K.

Abstract (from CDS):

We investigate the effect of the Milky Way's magnetic field in star-forming regions using archived 350 µm polarization data on 52 Galactic star formation regions from the Hertz polarimeter module. The polarization angles and percentages for individual telescope beams were combined in order to produce a large-scale average for each source and for complexes of sources. In more than 80% of the sources, we find a meaningful mean magnetic field direction, implying the existence of an ordered magnetic field component at the scale of these sources. The average polarization angles were analyzed with respect to the Galactic coordinates in order to test for correlations between polarization percentage, polarization angle, intensity, and Galactic location. No correlation was found, which suggests that the magnetic field in dense molecular clouds is decoupled from the large-scale Galactic magnetic field. Finally, we show that the magnetic field directions in the complexes are consistent with a random distribution on the sky.

Abstract Copyright: ∼

Journal keyword(s): ISM: clouds - ISM: magnetic fields - polarization - stars: formation - submillimeter: ISM

Simbad objects: 61

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Number of rows : 61
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 NAME NCP reg 00 00 00 +90 00.0           ~ 216 0
2 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 1064 3
3 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
4 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
5 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 823 1
6 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1249 2
7 [MGR2000a] IRAS 00494+5617 P1 HII 05 35 14.4 -04 55 45           ~ 39 0
8 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 301 1
9 OMC 2 MoC 05 35 27 -05 10.1           ~ 475 1
10 OMC 4 MoC 05 36 06 -05 35.7           ~ 80 0
11 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 252 0
12 NGC 2023 RNe 05 41 37.9 -02 15 52           ~ 657 1
13 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1198 1
14 HGBS J054608.3-001044 Y*O 05 46 08.8 -00 10 47           ~ 92 0
15 LBS 2-17 PoC 05 46 24.0 +00 00 05           ~ 15 0
16 LBS 2-10 PoC 05 46 45.1 +00 00 24           ~ 11 0
17 NGC 2071 RNe 05 47 10 +00 18.0           ~ 661 1
18 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 789 2
19 GGD 12 HH 06 10 50.6 -06 11 50           ~ 59 1
20 LBN 196.49-01.60 HII 06 14 38.29 +13 49 41.0           ~ 169 1
21 RAFGL 961 Y*O 06 34 37.74144 +04 12 44.1972           O-rich 242 1
22 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
23 IRAS 06381+1039 HII 06 40 58.0 +10 36 49           ~ 22 1
24 IRAS 06382+1017 Y*O 06 41 02.660 +10 15 01.91           ~ 52 0
25 IRAS 06382+0939 Y*O 06 41 02.81160 +09 36 16.1712         19.89 ~ 93 0
26 NAME Crux-Scutum Spiral Arm reg 12 30 -60.0           ~ 323 0
27 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
28 NAME Nor Arm PoG 16 00 -50.0           ~ 485 0
29 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
30 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1357 1
31 LDN 146 MoC 16 57 17.5 -16 09 18           ~ 89 1
32 NAME NGC 6334 FIR V Cl* 17 19 57 -35 57.5           ~ 99 0
33 NGC 6334A HII 17 20 19.3 -35 54 55           ~ 123 0
34 NAME NGC 6334-I Cl* 17 20 53.35 -35 47 01.5           ~ 373 0
35 GCM -0.13 -0.08 MoC 17 45 25.2 -29 05 30           ~ 141 1
36 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
37 NAME Sgr A East SNR 17 45 41 -29 00.8           ~ 523 2
38 CO 000.02-00.02 MoC 17 45.7 -28 56           ~ 34 0
39 GCM -0.02 -0.07 MoC 17 45 50.4 -28 59 06           ~ 182 0
40 GCM +0.07 -0.08 MoC 17 46 06.2 -28 55 22           ~ 18 0
41 NAME the Brick MoC 17 46 09 -28 43.8           ~ 226 0
42 SNR G000.3+00.0 SNR 17 46 15 -28 38.0           ~ 40 1
43 NAME Sickle HII 17 46 15.2 -28 49 49           ~ 128 0
44 GAL 000.11-00.11 MoC 17 46 18 -28 54.0           ~ 65 0
45 IRAS 17432-2835 HII 17 46 27.4 -28 36 06           ~ 29 0
46 NAME Sgr B1 MoC 17 47 02.0 -28 31 57           ~ 177 0
47 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
48 W 33c Rad 18 13 59.0 -17 57 38           ~ 14 0
49 W 33a Y*O 18 14 39.56547 -17 52 02.2260           ~ 746 0
50 LDN 483 DNe 18 17 35 -04 39.8           ~ 359 0
51 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
52 AGAL G030.818-00.056 cor 18 47 47.0 -01 54 28           ~ 186 0
53 RAFGL 2271 SFR 18 53 18.54 +01 14 57.9           ~ 537 0
54 NAME Sgr Arm PoG 19 00 -30.0           ~ 710 1
55 W 49a SFR 19 10 15.7 +09 06 05           ~ 325 2
56 W 51a HII 19 23 29.3 +14 31 38           ~ 186 0
57 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 469 0
58 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
59 NAME Cyg X FIR 33 Y*O 20 38 35.9 +42 37 22           B1.5 423 1
60 DR 21 SFR 20 39 01.6 +42 19 38           O4.5 1121 0
61 NAME Local Arm reg ~ ~           ~ 649 0

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