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Table 1

Zeeman splitting results.

Source αJ2000 δJ2000 VLSR Peak flux Int. flux ΔVza
hh mm ss km s-1 Jy beam-1 Jy beam-1km s-1 m s-1
G10.32-0.15 IRAS 18060-2005 18 09 01.46 –20 05 08.00 10.0 100 152 0.43 ± 0.11
G10.47+0.02b IRAS 18056-1952 18 08 38.21 –19 51 49.50 75.0 38 96 0.45 ± 0.13
G11.49-1.48b IRAS 18134-1942 18 16 22.13 –19 41 27.50 6.2 77 176 0.48 ± 0.07
G12.02-0.03 IRAS 18090-1832 18 12 01.85 –18 31 55.50 108.0 102 118 0.63 ± 0.08
G12.68-0.18b W33B 18 13 54.20 –18 01 44.00 52.0 378 996 0.24 ± 0.06
G12.71-0.11 18 13 43.40 –17 58 06.00 57.7 – – –
G12.89+0.49c IRAS 18089-1732 18 11 51.46 –17 31 28.84 39.0 57 75 0.55 ± 0.13
G14.09+0.10 IRAS 18128-1640 18 15 41.70 –16 38 57.00 15.1 51 84  < 0.44
G18.34+1.78 IRAS 18151-1208 18 17 54.10 –12 06 48.00 27.7 44 23 0.42 ± 0.11
G20.24+0.07 IRAS 18249-1116 18 27 44.56 –11 14 54.60 71.4 23 21  < 0.76
G23.44-0.18b IRAS 18319-0834 18 34 39.27 –08 31 39.00 103.0 90 178 0.43 ± 0.06
G24.78+0.08 W42 18 36 12.57 –07 12 11.50 113.0 129 188 0.50 ± 0.03
G25.65+1.04 IRAS 18316-0602 18 34 20.91 –05 59 40.50 41.9 99 43 0.46 ± 0.05
G25.71+0.04c IRAS 18353-0628 18 38 03.15 –06 24 15.00 95.6 625 620 0.81 ± 0.10
G28.82+0.48 18 42 12.43 –03 25 39.50 83.3 1.6 3.1  < 7.5
G29.86-0.04b 18 45 59.53 –02 44 47.00 101.4 67 87 0.50 ± 0.08
104.0  −0.67 ± 0.17
G29.95-0.02 W43S 18 46 03.74 –02 39 21.43 96.0 169 227  −0.33 ± 0.11
G30.91+0.14 18 47 15.00 –01 44 07.00 104.0 12 28  < 4.0
G32.03+0.06bc IRAS 18470-0050 18 49 37.30 –00 45 47.00 98.7 117 165 0.51 ± 0.17
101.0  −0.22 ± 0.06
G33.68-0.26 IRAS 18512+0029 18 53 45.20 00 32 47.00 62.6 – – –
G35.02+0.35 IRAS 18515+0157 18 54 00.60 02 00 50.00 44.0 26 29 1.22 ± 0.23
G41.34-0.14 IRAS 19049+0720 19 07 21.87 07 25 17.34 12.0 18 27  < 3.8
G43.80-0.13bc W49N 19 11 55.10 09 36 00.00 40.0 40 38  < 0.31
43.0 1.36 ± 0.33
G49.57-0.38 IRAS 19216+1429 19 23 53.60 14 34 54.00 59.3 2.6 2.4  < 4.92
G108.18+5.51 IRAS 22272+6358 22 28 52.00 64 13 22.00 –10.9 51 34 0.53 ± 0.15
G111.53+0.76c NGC 7538 23 13 45.36 61 28 10.55 –56.2 240 552 0.74 ± 0.10
G196.45-1.69 S269 06 14 37.06 13 49 37.00 15.0 18 14  < 0.77
Previous observations (Paper I)
G09.62+0.20b 18 06 14.66 –20 31 31.57 1.0 6757 3091 0.54 ± 0.10
G12.89+0.49bc IRAS 18089-1732 18 11 51.46 –17 31 28.84 39.0 71 105 0.41 ± 0.04
G23.01-0.41b 18 34 40.37 –09 00 38.30 74.8 585 1016  −1.49 ± 0.21
G25.71+0.04c 18 38 03.15 –06 24 15.00 95.6 590 591  < 0.56
G25.83-0.18 18 39 04.70 –06 24 17.00 90.7 69 84 0.99 ± 0.26
G28.15+0.00 18 42 41.00 –04 15 21.00 101.3 30 24  < 1.8
G31.28+0.06 IRAS 18456-0129 18 48 12.38 –01 26 22.60 110.4 74 174 2.06 ± 0.36
G32.03+0.06c IRAS 18470-0050 18 49 37.30 –00 45 47.00 98.7 69 81  < 1.0
G33.64-0.21 18 53 28.70 00 31 58.00 58.6 63 54  −0.89 ± 0.20
G35.20-0.74 IRAS 18556+0136 18 58 12.98 01 40 37.50 30.5 169 167 0.81 ± 0.11
G35.20-1.74 W48 19 01 45.60 01 13 28.00 41.5 476 643 0.32 ± 0.12
G37.40+1.52 IRAS 18517+0437 18 54 13.80 04 41 32.00 41.0 320 193 0.75 ± 0.09
G43.80-0.13c W49N 19 11 55.10 09 36 00.00 40.0 35 81  < 1.9
G49.49-0.39 W51-e1/e2 19 23 44.50 14 30 31.00 59.0 1029 885  < 1.2
G69.52-0.97 ON1 20 10 09.07 31 31 34.40 11.6 96 45  < 0.34
G78.10+3.64 IRAS 20126+4104 20 14 26.04 41 13 33.39 –6.1 60 77  < 0.93
G81.87+0.78b W75N 20 38 36.42 42 37 34.85 5.0 273 317 0.40 ± 0.08
G109.86+2.10 Cepheus A 22 56 18.09 62 01 49.45 –4.2 364 484 0.39 ± 0.05
G111.53+0.76bc NGC 7538 23 13 45.36 61 28 10.55 –56.2 233 514 0.79 ± 0.10
G133.94+1.04 W3(OH) 02 27 03.77 61 52 24.55 –44.0 3705 8198 0.141 ± 0.009
G173.49+2.42 S231 05 39 13.06 35 45 51.29 –13.0 52 53 0.95 ± 0.11
G174.19-0.09 AFGL 5142 05 30 42.00 33 47 14.00 2.1 55 34  < 0.8
G188.95+0.89 IRAS 06058+2138 06 08 53.35 21 38 28.67 10.9 633 485  −0.49 ± 0.15
G192.60-0.05 S255 06 12 54.02 17 59 23.00 5.0 94 78 0.47 ± 0.08

Notes. 

(a)

B|| can be derived by dividing ΔVz by the Zeeman splitting coefficient appropriate for the 6.7 GHz tansition of methanol, see Sect. 3.

(b)

Significant magnetic field changes across the maser spectrum.

(c)

Observed both epochs.

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