2011ApJ...741..112P

Query : 2011ApJ...741..112P

2011ApJ...741..112P - Astrophys. J., 741, 112 (2011/November-2)

Multi-scale analysis of magnetic fields in filamentary molecular clouds in Orion A.

POIDEVIN F., BASTIEN P. and JONES T.J.

Abstract (from CDS):

New visible and K-band polarization measurements of stars surrounding molecular clouds in Orion A and stars in the Becklin-Neugebauer (BN) vicinity are presented. Our results confirm that magnetic fields located inside the Orion A molecular clouds and in their close neighborhood are spatially connected. On and around the BN object, we measured the angular offsets between the K-band polarization data and available submillimeter (submm) data. We find high values of the polarization degree, PK, and of the optical depth, τK, close to an angular offset position of 90° whereas lower values of PK and τKare observed for smaller angular offsets. We interpret these results as evidence for the presence of various magnetic field components toward lines of sight in the vicinity of BN. On a larger scale, we measured the distribution of angular offsets between available H-band polarization data and the same submm data set. Here we find an increase of ≲ PH> with angular offset, which we interpret as a rotation of the magnetic field by ≲ 60°. This trend generalizes previous results on small scales toward and around lines of sight to BN and is consistent with a twist of the magnetic field on a larger scale toward OMC-1. A comparison of our results with several other studies suggests that a two-component magnetic field, perhaps helical, could be wrapping the OMC-1 filament.

Abstract Copyright: ∼

Journal keyword(s): ISM: individual (Orion A, OMC-1, OMC-2, OMC-3, OMC-4) - ISM: magnetic fields - polarization

VizieR on-line data: <Available at CDS (J/ApJ/741/112): table5.dat>

Nomenclature: Table 5: [PBJ2011] NN (Nos 0-38).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 170

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Number of rows : 170
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 Eri Region reg 04 00 -20.0           ~ 43 0
2 NAME Barnard's Loop HII 05 27.5 -03 58           ~ 131 1
3 Brun 21 * 05 32 55.8792540120 -04 32 44.502209808   12.57 11.22     K1.5III 12 0
4 HD 36629 Y*O 05 32 57.0824474232 -04 33 59.339585016 7.01 7.67 7.65 7.53 7.53 B2V 201 0
5 Brun 29 * 05 32 59.1913736880 -04 30 46.429620948   13.39 11.82 11.33   K6 19 0
6 Brun 43 * 05 33 00 -06 10.1   14.84 14.48     ~ 7 0
7 BD-05 1288 * 05 33 04.9866812472 -05 34 35.693367852   11.0 10.6     F2 23 0
8 HD 36655 * 05 33 07.4754961824 -05 20 26.106383580   8.57 8.60     B9V 61 0
9 HD 36671 * 05 33 14.0262520944 -04 38 07.237853772   9.03 8.70     A1mA8-F0 45 0
10 Brun 60 * 05 33 15.6132840360 -04 28 09.223358880   13.74 13.02     ~ 18 0
11 Brun 70 * 05 33 20.07 -05 06 24.3   14.65 12.44     ~ 9 0
12 V* V541 Ori Or* 05 33 24.4315744752 -05 21 16.426739124   12.23 11.65     F7 21 0
13 HD 294224 * 05 33 34.0573252608 -05 05 01.460059440   12.09 11.39     A 26 0
14 BD-05 1297 * 05 34 11.1261387072 -05 22 54.597327420 11.199 10.900 10.388   9.596 F8 29 0
15 BD-05 1298 Em* 05 34 15.1985809392 -05 11 49.334146476   11.2 10.698   10.001 F7 39 0
16 V* IN Ori TT* 05 34 22.2478442664 -04 57 41.027562828   14.26 13.23   11.95363 ~ 31 0
17 Brun 252 Or* 05 34 24.9600766056 -05 22 05.529603432   11.8 10.88   12.186 G0IV-V 60 0
18 Brun 263 * 05 34 25.0030692912 -06 01 03.920206296   15.2 14.38   13.07 ~ 9 0
19 HD 36865 ** 05 34 32.4215508019 -04 29 14.790179188           B8V 51 0
20 HD 294265 Y*O 05 34 34.4674318104 -05 03 06.904073916   10.8 10.6     A5 66 0
21 Brun 334 Or* 05 34 39.7638260448 -05 24 25.590693312 14.065 12.535 11.606   9.794 K3V+K5V 92 0
22 Brun 328 Or* 05 34 39.9955890096 -05 10 07.080306996   11.37 10.90   9.78 A0 46 0
23 Brun 318 * 05 34 40.7984612544 -04 17 25.995455916   13.1 12.6     ~ 7 0
24 HD 36899 Y*O 05 34 42.2804860032 -05 07 14.579496804   9.76 9.8   11.917 A1V 70 0
25 HD 36883 Or* 05 34 43.235376 -04 23 31.70508   8.46 8.46 8.20   B5/7III 54 0
26 Brun 359 Or* 05 34 43.6019353128 -05 18 27.637977492 11.803 11.534 11.156 11.04 10.481 F2IV: 41 0
27 V* V1443 Ori TT* 05 34 44.5452716136 -04 42 14.570123904   14.70 13.60     ~ 36 0
28 V* V1444 Ori Or* 05 34 45.1839371760 -05 25 04.060629948 15.170 13.960 13.008   11.073 K2 65 0
29 HD 36917 Or* 05 34 46.9822530528 -05 34 14.583314568   8.13 8.03     B9III/IV 167 0
30 Brun 365 SB* 05 34 47.6941717272 -04 17 27.013805772   13.19 12.46     F5 11 0
31 V* V2056 Ori Or* 05 34 49.9813015848 -05 18 44.650466244 12.583 11.496 10.928   9.616 A3: 79 0
32 V* V1045 Ori a2* 05 34 53.9637586032 -04 06 37.494251928 6.08 6.569 6.709     B9III 148 0
33 HD 36939 V* 05 34 55.2955987536 -05 30 22.104460800   9.00 9.01     B8V(n) 94 0
34 V* KM Ori Or* 05 34 55.9724775000 -05 23 13.041837816 14.142 12.883 11.918   10.064 K5Ve 108 0
35 HD 36938 V* 05 34 56.2378081848 -04 45 57.382639308   8.97 8.96     B9V 55 0
36 V* KN Ori Or* 05 34 56.8212360384 -05 11 33.026188020 14.892 13.887 13.110   11.651 K5 77 0
37 HD 36936 * 05 34 59.0052704976 -04 21 15.320553408   7.44 7.55     B5V 70 0
38 NAME f-Shaped Filament in Orion Cld 05 35.0 -05 30           ~ 133 0
39 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
40 V* KR Ori Or* 05 35 00.1168826299 -05 23 01.884351919 15.262 14.290 13.417   11.410 K0-K2e 74 0
41 V* KS Ori Or* 05 35 00.1295222496 -05 25 16.221822672   10.34 10.19     A0V 72 0
42 BD-05 1309 Y*O 05 35 00.6707038248 -05 05 08.771381808   11.37 10.93     A0 41 0
43 HD 36959 Y*O 05 35 01.0070120496 -06 00 33.366713364 4.52 5.33 5.53     B1V 223 0
44 HD 36960 * 05 35 02.6823091513 -06 00 07.308349203 3.52 4.50 4.72     B0.5V 283 0
45 BD-05 1310 * 05 35 03.62 -05 05 44.5   11.04 10.48     B9 29 0
46 HD 36957 * 05 35 03.7277996112 -04 23 06.064761876   8.96 8.91     A0V 45 0
47 [JMO94] 26 IR 05 35 03.9 -05 08 17           ~ 2 0
48 V* V1321 Ori Or* 05 35 04.3009445808 -05 08 12.737523192   11.94 10.538   9.117 K0III 103 0
49 HD 36958 Or* 05 35 04.7875827888 -04 43 54.626071800 6.68 7.22 6.90     B3/5V 111 0
50 V* V2149 Ori Or* 05 35 05.2073186952 -05 14 50.468194464 13.260 12.141 11.246   9.280 G0+F7 61 0
51 Brun 486 * 05 35 05.3787915408 -04 43 20.559148932   11.73 10.95     G8 10 0
52 V* LL Ori Or* 05 35 05.6361678504 -05 25 19.520320800 12.997 12.309 11.517   10.034 K0-K3e 119 1
53 HD 36981 Or* 05 35 06.1984793208 -05 12 15.917207580 7.16 7.76 7.89     B5V 101 0
54 Parenago 1775 Or* 05 35 07.5856919424 -06 09 59.947364124   14.3 13.9     K0 19 0
55 V* SZ Ori Or* 05 35 07.6114481352 -05 36 19.656375156 17.641 16.160 15.040   12.164 M3 51 0
56 V* V356 Ori Or* 05 35 09.0557590848 -05 29 59.243835660 15.448 14.187 13.366 12.73 11.671 K1-K4 79 0
57 HD 36982 Or* 05 35 09.8363878512 -05 27 53.216296776 8.00 8.58 8.46     B2V 225 0
58 V* LS Ori Or* 05 35 10.4287836264 -05 38 24.703463796 14.907 13.979 13.095   10.988 G4-G6 37 0
59 HD 37000 Y*O 05 35 11.0124999792 -05 55 36.881125896   7.33 7.46     B3/5 69 0
60 V* V2212 Ori Or* 05 35 11.1413470656 -05 36 51.212579400 18.461 16.619 15.379   12.444 M2 69 0
61 V* LT Ori Or* 05 35 11.6261963760 -05 16 57.640141092 15.152 13.961 12.940   10.712 K0 72 0
62 Brun 548 Or* 05 35 12.3594774504 -05 36 40.327530444 16.181 14.921 14.187   12.886 K2.7 27 0
63 V* LX Ori Or* 05 35 13.0057526016 -05 39 34.897830768 14.270 13.274 12.436   10.727 ~ 65 0
64 HD 36998 V* 05 35 13.2278636280 -04 35 40.989674688   9.02 9.06     B9V 40 0
65 HD 294264 Or* 05 35 13.3447259856 -04 51 44.916838992   10.02 9.77     B2.5V 78 0
66 [SBE98] CB1 ** 05 35 13.40 -05 22 22.3           ~ 1 0
67 V* V488 Ori Or* 05 35 13.6040342904 -05 30 57.666672432 14.704 13.926 13.153 12.72 11.395 G7:e 89 0
68 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1249 2
69 V* V2254 Ori Or* 05 35 14.11296 -05 22 22.7316           B 320 2
70 ALMA J053514.3589-052232.733 Y*O 05 35 14.3580 -05 22 32.726           ~ 111 0
71 [MGR2000a] IRAS 00494+5617 P1 HII 05 35 14.4 -04 55 45           ~ 39 0
72 COUP 648 Or* 05 35 14.6556309840 -05 22 33.743501832   15.891 14.779   12.008 K7 61 0
73 V* MO Ori TT* 05 35 14.6814780504 -05 39 10.976439816 14.543 13.437 12.640   11.028 ~ 56 0
74 [SBE98] CB4 ** 05 35 14.70 -05 22 29.6           ~ 6 1
75 V* V1330 Ori Or* 05 35 14.9155657944 -05 22 39.203240880   15.040 13.940   11.632 K4 78 0
76 HD 37025 Y*O 05 35 15.7459930968 -06 01 57.889342812 6.42 7.04 7.17 7.17 7.29 B3(III) 70 0
77 V* MN Ori TT* 05 35 15.7990702368 -05 33 12.387037320 17.432 16.240 15.216 14.08 12.939 M0 67 0
78 2MASS J05351582-0500362 Y*O 05 35 15.8340341784 -05 00 36.268724160   14.6 13.6     ~ 16 0
79 Brun 609 * 05 35 15.9758141544 -05 39 14.885359704 12.907 12.152 11.504   10.344 G6 27 0
80 COUP 821 Or* 05 35 16.6071226488 -05 32 48.101016948 18.208 16.451 15.344 14.12 12.866 M0.5 27 0
81 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
82 V* MR Ori Or* 05 35 16.9783073496 -05 21 45.337307544 11.386 10.876 10.578   9.836 A2:Vv 67 0
83 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 623 0
84 HD 294263 Or* 05 35 17.8578344592 -04 41 06.680102568   10.42       A 32 0
85 HD 37019 Y*O 05 35 18.2071867848 -05 03 54.672009912   9.38 9.36     A0 58 0
86 HD 294262 * 05 35 18.4437121896 -04 40 55.861089528   9.96 9.72     A 35 0
87 V* MU Ori Or* 05 35 18.8973575712 -05 16 13.919162268 15.508 14.465 13.677   12.300 K3-K4 65 0
88 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 301 1
89 V* V1230 Ori Or* 05 35 20.7204225144 -05 21 44.345341872 9.886 10.041 9.736 9.25 8.822 B1 97 0
90 V* MX Ori Or* 05 35 21.2653329384 -05 09 16.174506564   10.9 10.30     K2Ve 85 0
91 Brun 656 Or* 05 35 21.3152972328 -05 12 12.609578520 13.057 12.043 11.225   9.538 G2III 69 0
92 V* AG Ori TT* 05 35 21.6973098024 -05 34 46.863920208 14.208 14.427 13.870   12.297 G8-K0e 65 0
93 HD 37017 SB* 05 35 21.8667428568 -04 29 39.024375324 5.66 6.43 6.56 6.61 6.74 B2/3V 318 0
94 HD 37016 ** 05 35 22.3136951928 -04 25 27.524552412 5.4         B9III/IV 120 0
95 V* V1735 Ori TT* 05 35 22.4525820792 -05 09 11.070989892 15.70 14.79 13.57   12.14607 K:: 50 0
96 [MWZ90] OMC-2 FIR 6 IR 05 35 22.6 -05 12 37           ~ 25 0
97 * tet02 Ori A SB* 05 35 22.9012398264 -05 24 57.832632108 5.37 6.30 6.39 6.30 6.35 O9.5IVp 576 0
98 * c Ori Y*O 05 35 23.1646530684 -04 50 18.059784995 3.46 4.40 4.59 4.67 4.85 B1V+? 232 0
99 Brun 645 * 05 35 23.4 -04 53 01   16.4 15     G8 10 0
100 V* V358 Ori Or* 05 35 23.8297038144 -05 30 47.492693172 13.895 13.030 12.353   10.942 G8V 63 0
101 [TSO2008] 24 Y*? 05 35 24.6 -05 07 53           ~ 26 0
102 V* V1344 Ori TT* 05 35 25.2358794815 -05 09 27.718559282   13.5 15.86   13.080 M3-3.5 43 0
103 V* V1535 Ori Or* 05 35 25.4012899224 -05 10 48.093518712 16.262 14.887 14.017   12.366 K3 50 0
104 V* AH Ori Or* 05 35 25.7349904896 -05 09 49.437097884   13.88 13.54     K0IV-V 75 0
105 * iot Ori SB* 05 35 25.9861932063 -05 54 35.598684624 1.45 2.53 2.77     O9IIIvar 793 0
106 [JMO94] 112 IR 05 35 26.1 -05 08 40           ~ 2 0
107 * tet02 Ori B Y*O 05 35 26.4007537560 -05 25 00.793767576 5.36 6.29 6.38 6.29 11.050 B0.7V 206 0
108 V* AI Ori Or* 05 35 26.8646166048 -05 11 07.498001724 17.555 15.566 14.123   11.124 G3:IV/V 66 0
109 Brun 711 Or* 05 35 26.9814745776 -05 13 14.462546340 12.887 12.451 11.898   11.018 G3IV-V 33 0
110 OMC 2 MoC 05 35 27 -05 10.1           ~ 475 1
111 V* V1539 Ori Or* 05 35 27.5109730224 -05 35 19.550665572 16.617 15.016 14.010   11.911 K8V 48 0
112 2MASS J05352762-0509337 Y*O 05 35 27.622 -05 09 33.78           ~ 128 0
113 V* V1739 Ori Or* 05 35 28.6066182792 -04 55 03.664803360   13.46 12.62   11.78434 K1 33 0
114 V* V1740 Ori TT* 05 35 29.0279869992 -05 06 04.009252644   15.02 14.08   12.64085 K4 48 0
115 Brun 740 Y*O 05 35 31.072680 -05 04 15.22128   14.10 13.07 12.86   K4IV 27 0
116 HD 37040A * 05 35 31.0756116265 -04 21 50.563049764   6.31 6.45     B3V 97 0
117 HD 37040 ** 05 35 31.0791596 -04 21 50.577378 5.50 6.24 6.38     B3V+B7V 100 0
118 HD 37059 * 05 35 31.1580365376 -04 54 15.178126212   9.08 9.10     B8/A0V 47 0
119 HD 37061 Or* 05 35 31.3649044920 -05 16 02.582064192 6.44 7.09 6.83     O9.5V 376 0
120 V* NV Ori Ae* 05 35 31.3686116448 -05 33 08.872027056 10.36 10.21 8.70 9.48 9.22 F6IIIe 117 0
121 * tet02 Ori C Or* 05 35 31.4311124640 -05 25 16.371705000   7.80 8.24     B4V 136 1
122 V* V360 Ori TT* 05 35 31.958352 -05 09 27.93528   13.67 12.29 11.95 10.50868 M0.5+M1.5 83 0
123 HD 37060 Y*O 05 35 34.2772048536 -05 06 21.214590156   9.42 9.40     (B9) 81 0
124 V* NY Ori Or* 05 35 36.0088602048 -05 12 25.298255700 14.079 13.847 13.232   11.445 G6-K2e 82 0
125 V* V1576 Ori Or* 05 35 39.0762207144 -05 08 56.379773004   14.87 13.50   11.95 M3?II/III?e 52 0
126 V* V363 Ori Or* 05 35 40.7739025800 -05 09 01.546548804     14.71   12.35833 K: 48 0
127 V* V2579 Ori Or* 05 35 42.7683282600 -05 11 54.766448304 16.905 15.338 14.281   12.221 K6-K7 56 0
128 Wolf 1456 Em* 05 35 43.0926813072 -05 20 13.839058356 13.106 12.051 11.337 10.92 10.049 K5V 34 0
129 Brun 832 * 05 35 43.1130337104 -05 13 46.789235940 12.573 12.113 11.556   10.625 K0V 18 0
130 V* OR Ori Or* 05 35 43.2201976800 -05 36 27.470844504 15.572 14.276 13.379   11.538 K6-K8 50 0
131 V* V500 Ori TT* 05 35 44.8597500624 -05 07 16.984674480     13.2   11.37705 ~ 55 0
132 Brun 862 s*r 05 35 47.0099803752 -05 17 56.964353604   16.093 13.728   8.626 K3-M0I 24 0
133 V* V574 Ori Or* 05 35 47.4194339088 -05 10 28.502129532     14.45   12.76 K5-K7 49 0
134 Brun 870 SB* 05 35 47.5059008544 -05 16 58.021509180 14.387 13.350 12.624   11.190 F2-F7 30 0
135 Brun 864 Or* 05 35 47.7934095288 -05 10 30.811963080   13.12 11.71 13.7 10.94031 K2: 42 0
136 Brun 885 * 05 35 49.7894957016 -05 40 27.806024892 12.123 12.024 11.477   9.913 F6IV 38 0
137 Brun 880 * 05 35 50.8286991576 -04 51 11.525715792   14.41 13.37   11.95 ~ 16 0
138 [JMO94] 207 IR 05 35 51.0 -05 09 26           ~ 2 0
139 V* V1760 Ori Or* 05 35 51.6380029536 -05 08 09.196661364   13.59 12.34   10.74 K1/2Ve 46 0
140 V* V815 Ori Or* 05 35 52.6271448504 -05 05 05.624701116   12.401 11.527 11.470 10.54 G2IV 64 0
141 HD 37115 Be* 05 35 54.078288 -05 37 42.31308 6.45         B7Ve 109 0
142 Brun 902 Or* 05 35 54.6305565912 -04 58 08.210864676   13.13 12.22   11.25123 ~ 19 0
143 Parenago 2275 RG* 05 35 56.0464382424 -05 09 03.166362396   16.6 15.36     ~ 18 0
144 HD 37114 * 05 35 58.5404909136 -05 22 31.373366988   9.01 9.01     B9V 84 0
145 HD 294266 * 05 36 00.6637067880 -04 56 06.997041348   10.88 10.47     A7 27 0
146 HD 37130 * 05 36 03.5675776920 -04 45 07.631549964   10.15 10.1     B9V+ 45 0
147 Brun 944 * 05 36 04.3365914688 -05 07 15.644657532   13.26 12.53     ~ 26 0
148 Brun 939 * 05 36 04.3741443408 -04 44 39.346351008   13.58 12.65   11.28 ~ 12 0
149 OMC 4 MoC 05 36 06 -05 35.7           ~ 80 0
150 HD 37129 * 05 36 06.2580409656 -04 25 32.781782028 6.32 7.02 7.17 7.22 7.38 B3III/IV 136 0
151 HD 37142 * 05 36 11.0223700728 -05 03 41.472188172   9.91 9.51     F6/7V 23 0
152 V* AZ Ori Or* 05 36 16.9806175536 -05 11 42.802564452   14.86 13.43 12.59   K6e 83 1
153 HD 37174 Y*O 05 36 27.1856306736 -05 24 31.314914352   9.20 9.16     B9V 65 0
154 Parenago 2425 * 05 36 38.1059810472 -05 28 35.041658880   11.303 10.592 10.467   B5V 27 0
155 Brun 1037 * 05 36 53.632 -04 39 53.50   13.97 12.05     ~ 9 0
156 Brun 1045 * 05 37 02 -04 12.3   13.98 13.20     ~ 7 0
157 V* PX Ori EB* 05 37 03.4272422136 -04 37 04.690890552   13.29 12.60 12.45   ~ 28 0
158 Brun 1073 * 05 37 13.4160637824 -05 40 26.814297144   11.6 11.1     A3 16 0
159 BD-04 1193 * 05 37 21.7643497008 -04 40 20.344206144   11.95 11.30     A0 13 0
160 Brun 1117 * 05 37 41.3735415768 -04 51 04.770427932   14.04 12.54     ~ 8 0
161 HD 37356 V* 05 37 53.3851682160 -04 48 50.525298828 5.42 6.14 6.18 6.11 6.11 B3V 153 0
162 HD 294295 * 05 37 55.8821509416 -04 47 17.534037012   10.79 10.51     A 14 0
163 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
164 HD 37411 Or* 05 38 14.5072831944 -05 25 13.301118588 10.03 9.91 9.79 9.60 9.45 hA3VakA0mA0(eb)_lB 100 0
165 HD 37469 * 05 38 39.4635024552 -04 40 48.798266952   9.79 9.58     B9VpSi-Sr 32 0
166 LDN 1641 MoC 05 39.0 -07 00           ~ 502 0
167 HD 37526 * 05 39 02.4016862760 -05 11 40.072253172   7.49 7.55     B5V 70 0
168 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
169 LDN 1082 DNe 20 51.1 +60 11           ~ 36 0
170 NAME Eri Loop reg ~ ~           ~ 16 0

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