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FIS07 - Large Magnetic Fields and Motions of OH Masers in W75N

Interferometry data

Short title: Fish & Reid (2007)
Authors: Fish, Vincent L.Reid, Mark J.
Journal: The Astrophysical Journal, Volume 656, Issue 2, pp. 952-958.
Bibcode:
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Target type: High_mass_SFR
Observations category: SF.general
Facility type: interferometer
Transitions: OH_1665,OH_1667

Abstract
We report on a second epoch of VLBA observations of the 1665 and 1667 MHz OH masers in the massive star-forming region W75N. We find evidence to confirm the existence of very strong (~40 mG) magnetic fields near source VLA 2. The masers near VLA 2 are dynamically distinct and include a very bright spot apparently moving at 50 km s^-1 relative to those around VLA 1. This fast-moving spot may be an example of a rare class of OH masers seen in outflows in star-forming regions. Due to the variability of these masers and the rapidity of their motions, tracking these motions will require multiple observations over a significantly shorter time baseline than obtained here. Proper motions of the masers near VLA 1 are more suggestive of streaming along magnetized shocks rather than Keplerian rotation in a disk. The motions of the easternmost cluster of masers in W75N(B) may be tracing slow expansion around an unseen exciting source.

Abstract

We report on a second epoch of VLBA observations of the 1665 and 1667 MHz OH masers in the massive star-forming region W75N. We find evidence to confirm the existence of very strong (~40 mG) magnetic fields near source VLA 2. The masers near VLA 2 are dynamically distinct and include a very bright spot apparently moving at 50 km s^-1 relative to those around VLA 1. This fast-moving spot may be an example of a rare class of OH masers seen in outflows in star-forming regions. Due to the variability of these masers and the rapidity of their motions, tracking these motions will require multiple observations over a significantly shorter time baseline than obtained here. Proper motions of the masers near VLA 1 are more suggestive of streaming along magnetized shocks rather than Keplerian rotation in a disk. The motions of the easternmost cluster of masers in W75N(B) may be tracing slow expansion around an unseen exciting source.

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ID	Obs. RA	Obs. Dec	RA offset	Dec offset	l	b	Group id	grpv	#	Source name	Image	Line	Frequency	V_peak	F_peak	Telescope	V_step	RMS	Beam	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(mas)	(mas)	(deg.)	(deg.)						OH	(MHz)	(km/s)	(Jy/beam)		(km/s)	(mJy/beam)	(arcsec)	Yes/No		(kpc)
1	+20 38 36.416	+42 37 34.42			81.871158	0.780603	G81.871+0.781	G81.8716+0.7806		G81.871+0.781	Image	1665 MHz;	1665	-3.37 .. 17.4	0.06 .. 408.83	VLBA	0.176	8.000	0.009 x 0.007	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		2000 Now 22; 2001 Jan 6; 2004 Sep 16 and 19
	+20 38 36.383	+42 37 34.5687	-493.39 mas	147.93 mas	81.871130	0.780708			1	G81.871+0.781			1665	6.83	0.35
	+20 38 36.3831	+42 37 33.9802	-491.55 mas	-440.64 mas	81.871000	0.780609			2	G81.871+0.781			1665	7.35	0.07
	+20 38 36.3831	+42 37 33.9776	-491.89 mas	-443.17 mas	81.870999	0.780608			3	G81.871+0.781			1665	7.35	0.06
	+20 38 36.396	+42 37 34.6769	-298.29 mas	256.13 mas	81.871178	0.780695			4	G81.871+0.781			1665	5.95	1.03
	+20 38 36.3985	+42 37 34.1084	-260.68 mas	-312.38 mas	81.871057	0.780593			5	G81.871+0.781			1665	12.74	1.22
	+20 38 36.3995	+42 37 33.276	-246.81 mas	-1144.76 mas	81.870875	0.780450			6	G81.871+0.781			1665	9.84	0.25
	+20 38 36.3993	+42 37 33.2753	-249.22 mas	-1145.51 mas	81.870874	0.780450			7	G81.871+0.781			1665	9.81	0.13
	+20 38 36.4071	+42 37 34.1989	-132.16 mas	-221.87 mas	81.871093	0.780587			8	G81.871+0.781			1665	12.1	0.06
	+20 38 36.4085	+42 37 34.4063	-111.2 mas	-14.49 mas	81.871141	0.780619			9	G81.871+0.781			1665	12.8	0.82
	+20 38 36.4086	+42 37 35.1314	-109.22 mas	710.59 mas	81.871301	0.780741			10	G81.871+0.781			1665	8.23	0.15
	+20 38 36.4159	+42 37 34.4206	-0.24 mas	-0.17 mas	81.871158	0.780603			11	G81.871+0.781			1665	9.27	38.71
	+20 38 36.4159	+42 37 34.4212	0.16 mas	0.37 mas	81.871158	0.780603			12	G81.871+0.781			1665	9.28	2.89
	+20 38 36.4159	+42 37 34.4208	0 mas	0 mas	81.871158	0.780603			13	G81.871+0.781			1665	12.36	72.01
	+20 38 36.4205	+42 37 34.4698	68.21 mas	49.04 mas	81.871177	0.780600			14	G81.871+0.781			1665	13.17	0.24
	+20 38 36.422	+42 37 34.3499	91.69 mas	-70.85 mas	81.871154	0.780576			15	G81.871+0.781			1665	13.68	0.33
	+20 38 36.4226	+42 37 34.3405	99.89 mas	-80.27 mas	81.871153	0.780573			16	G81.871+0.781			1665	9.64	0.15
	+20 38 36.4236	+42 37 34.3497	115.69 mas	-71.09 mas	81.871157	0.780572			17	G81.871+0.781			1665	9.45	0.41
	+20 38 36.4242	+42 37 34.3465	124.48 mas	-74.32 mas	81.871157	0.780570			18	G81.871+0.781			1665	10.01	0.25
	+20 38 36.4244	+42 37 34.3652	127.59 mas	-55.61 mas	81.871162	0.780573			19	G81.871+0.781			1665	12.09	0.25
	+20 38 36.4245	+42 37 34.3624	129 mas	-58.36 mas	81.871161	0.780572			20	G81.871+0.781			1665	14.56	0.06
	+20 38 36.4245	+42 37 34.3721	129.22 mas	-48.7 mas	81.871163	0.780574			21	G81.871+0.781			1665	13.33	0.23
	+20 38 36.4252	+42 37 34.4063	138.83 mas	-14.49 mas	81.871172	0.780578			22	G81.871+0.781			1665	12.8	1.25
	+20 38 36.4277	+42 37 34.941	177.24 mas	520.2 mas	81.871295	0.780662			23	G81.871+0.781			1665	9.99	0.58
	+20 38 36.4277	+42 37 34.941	177.24 mas	520.2 mas	81.871295	0.780662			24	G81.871+0.781			1665	9.99	0.27
	+20 38 36.4279	+42 37 34.9715	178.97 mas	550.75 mas	81.871302	0.780667			25	G81.871+0.781			1665	10.16	0.23
	+20 38 36.4288	+42 37 35.0007	193.5 mas	579.87 mas	81.871310	0.780670			26	G81.871+0.781			1665	9.99	0.13
	+20 38 36.4288	+42 37 35.0018	193.54 mas	581 mas	81.871310	0.780670			27	G81.871+0.781			1665	5.24	0.14
	+20 38 36.429	+42 37 35.0163	196.35 mas	595.53 mas	81.871314	0.780672			28	G81.871+0.781			1665	8.97	1.13
	+20 38 36.4293	+42 37 35.1388	200.58 mas	718 mas	81.871341	0.780692			29	G81.871+0.781			1665	11.22	0.34
	+20 38 36.4293	+42 37 35.1282	200.94 mas	707.45 mas	81.871339	0.780690			30	G81.871+0.781			1665	10.87	1.11
	+20 38 36.4293	+42 37 34.9896	201.09 mas	568.85 mas	81.871309	0.780666			31	G81.871+0.781			1665	4.01	1.17
	+20 38 36.4295	+42 37 35.0948	203.33 mas	673.95 mas	81.871332	0.780684			32	G81.871+0.781			1665	4.54	0.19
	+20 38 36.4295	+42 37 35.0948	203.33 mas	673.95 mas	81.871332	0.780684			33	G81.871+0.781			1665	8.96	0.68
	+20 38 36.4296	+42 37 35.0264	205.54 mas	605.61 mas	81.871317	0.780672			34	G81.871+0.781			1665	9.26	11.32
	+20 38 36.4297	+42 37 35.5229	206.33 mas	1102.14 mas	81.871427	0.780756			35	G81.871+0.781			1665	5.49	6.55
	+20 38 36.4296	+42 37 35.5233	205.82 mas	1102.49 mas	81.871427	0.780756			36	G81.871+0.781			1665	5.42	0.91
	+20 38 36.43	+42 37 35.5277	211.63 mas	1106.88 mas	81.871429	0.780755			37	G81.871+0.781			1665	5.9	3.03
	+20 38 36.4301	+42 37 35.0342	212.98 mas	613.36 mas	81.871320	0.780672			38	G81.871+0.781			1665	4.56	1.37
	+20 38 36.4307	+42 37 35.5254	221.71 mas	1104.56 mas	81.871429	0.780753			39	G81.871+0.781			1665	5.95	0.39
	+20 38 36.4313	+42 37 35.0021	230.48 mas	581.26 mas	81.871315	0.780664			40	G81.871+0.781			1665	5.41	4.1
	+20 38 36.4313	+42 37 35.0021	230.63 mas	581.31 mas	81.871315	0.780664			41	G81.871+0.781			1665	5.48	0.44
	+20 38 36.4314	+42 37 35.0025	231.83 mas	581.66 mas	81.871315	0.780664			42	G81.871+0.781			1665	10.15	0.43
	+20 38 36.4314	+42 37 34.9704	231.93 mas	549.56 mas	81.871308	0.780658			43	G81.871+0.781			1665	10.11	3.08
	+20 38 36.4315	+42 37 34.9797	233.01 mas	558.86 mas	81.871310	0.780660			44	G81.871+0.781			1665	5.55	11.66
	+20 38 36.4315	+42 37 34.98	233.29 mas	559.16 mas	81.871311	0.780660			45	G81.871+0.781			1665	5.53	2.43
	+20 38 36.4315	+42 37 35.4286	233.47 mas	1007.83 mas	81.871410	0.780735			46	G81.871+0.781			1665	5.24	0.26
	+20 38 36.4344	+42 37 35.5348	277.46 mas	1114.03 mas	81.871438	0.780746			47	G81.871+0.781			1665	6.5	0.45
	+20 38 36.4344	+42 37 35.5153	277.89 mas	1094.5 mas	81.871434	0.780743			48	G81.871+0.781			1665	5.82	6.05
	+20 38 36.4345	+42 37 35.5179	279.11 mas	1097.13 mas	81.871435	0.780743			49	G81.871+0.781			1665	5.59	0.92
	+20 38 36.4348	+42 37 34.4318	282.51 mas	11 mas	81.871196	0.780559			50	G81.871+0.781			1665	4.07	5.63
	+20 38 36.4345	+42 37 35.534	278.85 mas	1113.22 mas	81.871438	0.780746			51	G81.871+0.781			1665	4.22	0.28
	+20 38 36.4357	+42 37 35.5318	297.23 mas	1111.03 mas	81.871440	0.780742			52	G81.871+0.781			1665	6.85	0.9
	+20 38 36.4359	+42 37 35.5991	300.27 mas	1178.27 mas	81.871455	0.780753			53	G81.871+0.781			1665	3.21	0.84
	+20 38 36.436	+42 37 34.4218	300.94 mas	1 mas	81.871196	0.780554			54	G81.871+0.781			1665	7.35	0.25
	+20 38 36.436	+42 37 35.5991	301.64 mas	1178.27 mas	81.871456	0.780753			55	G81.871+0.781			1665	5.7	4.93
	+20 38 36.436	+42 37 35.5989	301.59 mas	1178.09 mas	81.871456	0.780753			56	G81.871+0.781			1665	5.59	3.25
	+20 38 36.4376	+42 37 34.5508	325.79 mas	130.03 mas	81.871227	0.780572			57	G81.871+0.781			1665	13.9	0.41
	+20 38 36.4388	+42 37 35.5987	342.64 mas	1177.95 mas	81.871461	0.780746			58	G81.871+0.781			1665	5.51	15.39
	+20 38 36.4387	+42 37 35.5992	342.01 mas	1178.43 mas	81.871461	0.780746			59	G81.871+0.781			1665	5.57	1.66
	+20 38 36.4388	+42 37 35.554	343.12 mas	1133.25 mas	81.871451	0.780739			60	G81.871+0.781			1665	6.52	2.57
	+20 38 36.4388	+42 37 35.5537	342.91 mas	1132.95 mas	81.871451	0.780739			61	G81.871+0.781			1665	6.47	0.39
	+20 38 36.439	+42 37 35.601	346.17 mas	1180.21 mas	81.871462	0.780746			62	G81.871+0.781			1665	3.48	0.38
	+20 38 36.4403	+42 37 34.4218	365.98 mas	1 mas	81.871204	0.780544			63	G81.871+0.781			1665	4.54	0.26
	+20 38 36.4403	+42 37 35.5688	365.89 mas	1148.01 mas	81.871457	0.780737			64	G81.871+0.781			1665	4.54	0.08
	+20 38 36.4404	+42 37 35.5704	367.61 mas	1149.59 mas	81.871457	0.780737			65	G81.871+0.781			1665	7.01	0.18
	+20 38 36.4426	+42 37 35.6503	400.92 mas	1229.55 mas	81.871479	0.780745			66	G81.871+0.781			1665	4.71	0.56
	+20 38 36.4456	+42 37 35.6978	445.02 mas	1276.97 mas	81.871495	0.780746			67	G81.871+0.781			1665	5.31	1
	+20 38 36.4455	+42 37 35.6982	444.4 mas	1277.38 mas	81.871495	0.780746			68	G81.871+0.781			1665	5.15	0.32
	+20 38 36.4464	+42 37 35.7141	457.52 mas	1293.28 mas	81.871500	0.780747			69	G81.871+0.781			1665	5.15	7.49
	+20 38 36.4464	+42 37 35.7135	457.14 mas	1292.72 mas	81.871500	0.780747			70	G81.871+0.781			1665	5.18	4.64
	+20 38 36.4485	+42 37 35.7683	488.92 mas	1347.51 mas	81.871516	0.780751			71	G81.871+0.781			1665	5.16	6.15
	+20 38 36.4485	+42 37 35.7683	488.92 mas	1347.51 mas	81.871516	0.780751			72	G81.871+0.781			1665	5.07	0.18
	+20 38 36.4486	+42 37 35.769	489.71 mas	1348.16 mas	81.871516	0.780751			73	G81.871+0.781			1665	7.21	0.74
	+20 38 36.4486	+42 37 35.7687	490.24 mas	1347.86 mas	81.871516	0.780751			74	G81.871+0.781			1665	5.18	1.05
	+20 38 36.4515	+42 37 35.8698	533.26 mas	1448.99 mas	81.871544	0.780761			75	G81.871+0.781			1665	7	0.16
	+20 38 36.4525	+42 37 35.9128	548.23 mas	1491.99 mas	81.871555	0.780766			76	G81.871+0.781			1665	6.15	0.48
	+20 38 36.4526	+42 37 35.9176	550.47 mas	1496.78 mas	81.871557	0.780766			77	G81.871+0.781			1665	3.69	5.04
	+20 38 36.4561	+42 37 34.3234	602.08 mas	-97.43 mas	81.871211	0.780489			78	G81.871+0.781			1665	3.11	2.03
	+20 38 36.4561	+42 37 34.3231	602.28 mas	-97.74 mas	81.871211	0.780489			79	G81.871+0.781			1665	3.14	1.3
	+20 38 36.4568	+42 37 34.3298	612.7 mas	-91 mas	81.871214	0.780488			80	G81.871+0.781			1665	3.13	0.85
	+20 38 36.4606	+42 37 34.2143	670.2 mas	-206.46 mas	81.871196	0.780459			81	G81.871+0.781			1665	0.5	0.51
	+20 38 36.4608	+42 37 34.2043	673.82 mas	-216.53 mas	81.871194	0.780457			82	G81.871+0.781			1665	4.54	0.23
	+20 38 36.4615	+42 37 34.2135	684.26 mas	-207.25 mas	81.871197	0.780457			83	G81.871+0.781			1665	0.67	0.47
	+20 38 36.4636	+42 37 34.199	715.54 mas	-221.75 mas	81.871198	0.780450			84	G81.871+0.781			1665	0.67	0.43
	+20 38 36.4636	+42 37 34.2006	715.14 mas	-220.16 mas	81.871198	0.780450			85	G81.871+0.781			1665	0.85	0.36
	+20 38 36.4642	+42 37 34.1872	724.38 mas	-233.62 mas	81.871196	0.780446			86	G81.871+0.781			1665	0.6	0.34
	+20 38 36.4642	+42 37 34.1873	724.16 mas	-233.53 mas	81.871196	0.780446			87	G81.871+0.781			1665	0.67	0.32
	+20 38 36.4652	+42 37 34.2477	739.42 mas	-173.13 mas	81.871212	0.780454			88	G81.871+0.781			1665	17.4	0.13
	+20 38 36.4652	+42 37 34.2474	739.72 mas	-173.37 mas	81.871212	0.780454			89	G81.871+0.781			1665	17.39	0.08
	+20 38 36.4652	+42 37 34.2753	739.6 mas	-145.53 mas	81.871218	0.780458			90	G81.871+0.781			1665	2	408.83
	+20 38 36.4652	+42 37 34.2749	739.39 mas	-145.95 mas	81.871218	0.780458			91	G81.871+0.781			1665	1.98	402.02
	+20 38 36.4653	+42 37 34.2708	740.07 mas	-150.02 mas	81.871217	0.780458			92	G81.871+0.781			1665	-0.12	51.31
	+20 38 36.4653	+42 37 34.2719	740.61 mas	-148.88 mas	81.871217	0.780458			93	G81.871+0.781			1665	-0.13	9.32
	+20 38 36.4654	+42 37 34.2899	742.92 mas	-130.89 mas	81.871221	0.780460			94	G81.871+0.781			1665	-0.77	52.19
	+20 38 36.4655	+42 37 34.2919	743.08 mas	-128.94 mas	81.871222	0.780461			95	G81.871+0.781			1665	-0.75	23.14
	+20 38 36.4655	+42 37 34.2867	744.08 mas	-134.1 mas	81.871221	0.780460			96	G81.871+0.781			1665	0.09	134.88
	+20 38 36.4655	+42 37 34.2872	744.44 mas	-133.57 mas	81.871221	0.780460			97	G81.871+0.781			1665	0.11	59.95
	+20 38 36.4656	+42 37 34.272	745.71 mas	-148.79 mas	81.871218	0.780457			98	G81.871+0.781			1665	4.26	0.48
	+20 38 36.4657	+42 37 34.2801	746.35 mas	-140.72 mas	81.871220	0.780458			99	G81.871+0.781			1665	3.09	1.25
	+20 38 36.4657	+42 37 34.299	746.38 mas	-121.79 mas	81.871224	0.780461			100	G81.871+0.781			1665	-3.37	0.73
	+20 38 36.4657	+42 37 34.2808	747.32 mas	-140.04 mas	81.871220	0.780458			101	G81.871+0.781			1665	2.69	5.61
	+20 38 36.4658	+42 37 34.2809	747.57 mas	-139.85 mas	81.871220	0.780458			102	G81.871+0.781			1665	2.43	4.58
	+20 38 36.4658	+42 37 34.2724	747.74 mas	-148.44 mas	81.871218	0.780457			103	G81.871+0.781			1665	6.21	34.73
	+20 38 36.4657	+42 37 34.2719	747.34 mas	-148.9 mas	81.871218	0.780457			104	G81.871+0.781			1665	6.23	4.89
	+20 38 36.4671	+42 37 34.3307	767.28 mas	-90.12 mas	81.871233	0.780463			105	G81.871+0.781			1665	7.14	1.08
	+20 38 36.4671	+42 37 34.3311	767.82 mas	-89.66 mas	81.871234	0.780463			106	G81.871+0.781			1665	7.23	0.32
	+20 38 36.4676	+42 37 34.3275	774.58 mas	-93.27 mas	81.871234	0.780462			107	G81.871+0.781			1665	10.87	0.14
	+20 38 36.4676	+42 37 34.2879	775.76 mas	-132.9 mas	81.871225	0.780455			108	G81.871+0.781			1665	0.85	0.39
	+20 38 36.4687	+42 37 34.1801	791.97 mas	-240.71 mas	81.871203	0.780434			109	G81.871+0.781			1665	5.83	1.72
	+20 38 36.4705	+42 37 34.2505	817.99 mas	-170.32 mas	81.871222	0.780442			110	G81.871+0.781			1665	17.24	0.57
	+20 38 36.4763	+42 37 34.2162	905.22 mas	-204.56 mas	81.871225	0.780422			111	G81.871+0.781			1665	-2.32	0.3
	+20 38 36.5054	+42 37 34.4703	1341.64 mas	49.55 mas	81.871336	0.780394			112	G81.871+0.781			1665	11.39	0.14
	+20 38 36.5053	+42 37 34.4697	1341.26 mas	48.92 mas	81.871335	0.780394			113	G81.871+0.781			1665	11.39	0.11
	+20 38 36.5297	+42 37 33.8308	1706.84 mas	-590.03 mas	81.871240	0.780226			114	G81.871+0.781			1665	13.68	0.35
	+20 38 36.5332	+42 37 33.8279	1759.06 mas	-592.88 mas	81.871246	0.780217			115	G81.871+0.781			1665	16.49	0.07
	+20 38 36.5349	+42 37 33.8332	1784.06 mas	-587.59 mas	81.871250	0.780214			116	G81.871+0.781			1665	16.14	0.07
	+20 38 36.535	+42 37 33.8242	1785.98 mas	-596.61 mas	81.871248	0.780212			117	G81.871+0.781			1665	12.16	6.42
	+20 38 36.5349	+42 37 33.8242	1785.19 mas	-596.61 mas	81.871248	0.780213			118	G81.871+0.781			1665	12.14	0.3
2	+20 38 36.416	+42 37 34.42			81.871158	0.780603	G81.871+0.781	G81.8716+0.7806		G81.871+0.781		1667 MHz;	1667	-2.53 .. 15.46	0.06 .. 5.08	VLBA	0.176	8.000	0.009 x 0.007	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		2000 Now 22; 2001 Jan 6; 2004 Sep 16 and 19
	+20 38 36.416	+42 37 34.4202	1.1 mas	-0.61 mas	81.871158	0.780603			1	G81.871+0.781			1667	11.89	0.76
	+20 38 36.416	+42 37 34.4207	1.39 mas	-0.06 mas	81.871158	0.780603			2	G81.871+0.781			1667	10.09	0.39
	+20 38 36.423	+42 37 34.6326	105.78 mas	211.8 mas	81.871218	0.780622			3	G81.871+0.781			1667	10.19	1.09
	+20 38 36.4246	+42 37 34.366	129.66 mas	-54.79 mas	81.871162	0.780573			4	G81.871+0.781			1667	12.62	0.49
	+20 38 36.4246	+42 37 34.366	129.75 mas	-54.81 mas	81.871162	0.780573			5	G81.871+0.781			1667	12.67	0.45
	+20 38 36.4275	+42 37 35.2284	173.09 mas	807.56 mas	81.871358	0.780711			6	G81.871+0.781			1667	11.06	0.22
	+20 38 36.429	+42 37 34.9961	195.97 mas	575.29 mas	81.871309	0.780668			7	G81.871+0.781			1667	6.47	0.15
	+20 38 36.4291	+42 37 35.0159	197.78 mas	595.08 mas	81.871314	0.780671			8	G81.871+0.781			1667	8.02	0.66
	+20 38 36.4292	+42 37 34.9035	198.82 mas	482.75 mas	81.871289	0.780652			9	G81.871+0.781			1667	9.11	0.54
	+20 38 36.4293	+42 37 34.9018	199.99 mas	480.96 mas	81.871289	0.780652			10	G81.871+0.781			1667	9.11	0.06
	+20 38 36.4294	+42 37 35.1294	202.42 mas	708.63 mas	81.871340	0.780690			11	G81.871+0.781			1667	9.98	1.69
	+20 38 36.4295	+42 37 34.9895	203.25 mas	568.73 mas	81.871309	0.780666			12	G81.871+0.781			1667	5.42	0.31
	+20 38 36.4295	+42 37 34.9909	203.4 mas	570.11 mas	81.871309	0.780666			13	G81.871+0.781			1667	5.42	0.1
	+20 38 36.4297	+42 37 35.026	206.94 mas	605.17 mas	81.871317	0.780672			14	G81.871+0.781			1667	8.45	0.42
	+20 38 36.4297	+42 37 35.0953	207.18 mas	674.5 mas	81.871333	0.780683			15	G81.871+0.781			1667	5.42	5.08
	+20 38 36.4298	+42 37 35.0946	207.81 mas	673.79 mas	81.871333	0.780683			16	G81.871+0.781			1667	8.09	0.94
	+20 38 36.4305	+42 37 35.0389	219.18 mas	618.12 mas	81.871322	0.780672			17	G81.871+0.781			1667	8.05	0.1
	+20 38 36.4306	+42 37 35.0381	219.78 mas	617.31 mas	81.871322	0.780672			18	G81.871+0.781			1667	5.24	0.27
	+20 38 36.4307	+42 37 35.0766	222.44 mas	655.77 mas	81.871330	0.780678			19	G81.871+0.781			1667	6.01	1.3
	+20 38 36.4315	+42 37 34.97	233.08 mas	549.21 mas	81.871308	0.780658			20	G81.871+0.781			1667	9.2	0.32
	+20 38 36.4315	+42 37 34.9717	233.66 mas	550.95 mas	81.871309	0.780658			21	G81.871+0.781			1667	6.49	0.61
	+20 38 36.4465	+42 37 35.716	457.98 mas	1295.24 mas	81.871501	0.780747			22	G81.871+0.781			1667	6.3	0.14
	+20 38 36.4469	+42 37 35.722	465.01 mas	1301.25 mas	81.871503	0.780747			23	G81.871+0.781			1667	5.95	0.07
	+20 38 36.4487	+42 37 35.7747	491.5 mas	1353.89 mas	81.871518	0.780752			24	G81.871+0.781			1667	6.64	0.13
	+20 38 36.4487	+42 37 35.7722	491.93 mas	1351.43 mas	81.871517	0.780751			25	G81.871+0.781			1667	5.62	0.47
	+20 38 36.4653	+42 37 34.2746	740.7 mas	-146.15 mas	81.871218	0.780458			26	G81.871+0.781			1667	6.79	0.35
	+20 38 36.4654	+42 37 34.2772	742.94 mas	-143.59 mas	81.871219	0.780458			27	G81.871+0.781			1667	4.48	0.37
	+20 38 36.4655	+42 37 34.2924	744.02 mas	-128.38 mas	81.871222	0.780461			28	G81.871+0.781			1667	4	0.47
	+20 38 36.4655	+42 37 34.2925	743.76 mas	-128.26 mas	81.871222	0.780461			29	G81.871+0.781			1667	4.07	0.13
	+20 38 36.4657	+42 37 34.2781	746.1 mas	-142.66 mas	81.871219	0.780458			30	G81.871+0.781			1667	1.02	0.61
	+20 38 36.4657	+42 37 34.278	746.14 mas	-142.78 mas	81.871219	0.780458			31	G81.871+0.781			1667	1	0.18
	+20 38 36.4665	+42 37 34.3304	758.52 mas	-90.35 mas	81.871232	0.780465			32	G81.871+0.781			1667	10.17	0.55
	+20 38 36.4664	+42 37 34.3286	756.98 mas	-92.17 mas	81.871232	0.780465			33	G81.871+0.781			1667	10.07	0.36
	+20 38 36.4677	+42 37 34.3282	776.37 mas	-92.64 mas	81.871234	0.780461			34	G81.871+0.781			1667	14.01	0.11
	+20 38 36.4693	+42 37 34.2448	800.17 mas	-175.96 mas	81.871219	0.780443			35	G81.871+0.781			1667	15.46	0.25
	+20 38 36.4801	+42 37 34.2132	962.06 mas	-207.57 mas	81.871232	0.780412			36	G81.871+0.781			1667	-2.53	0.14
	+20 38 36.5349	+42 37 33.8385	1784.15 mas	-582.29 mas	81.871251	0.780215			37	G81.871+0.781			1667	15.41	0.21
	+20 38 36.535	+42 37 33.8366	1786.02 mas	-584.16 mas	81.871251	0.780215			38	G81.871+0.781			1667	12.94	0.25
	+20 38 36.5381	+42 37 33.8611	1833.33 mas	-559.66 mas	81.871262	0.780211			39	G81.871+0.781			1667	14.9	0.12
	+20 38 36.5382	+42 37 33.8612	1833.95 mas	-559.6 mas	81.871262	0.780211			40	G81.871+0.781			1667	12.56	0.79

DSS colored	2MASS colored	WISE colored
PACS color (70-160 um)	SPIRE color (250-500 um)	GLIMPSE 360
SDSS color	IRAC color I1,I2,I4	NVSS (1.4GHz)
ATLASGAL 870 um	ATLASGAL 870 um + Planck	Bolocam 1.1 mm

select MAX(oh_data_all.ra_hms) as ra_hms,MAX(oh_data_all.dec_dms) as dec_dms,MAX(oh_data_all.source_name) as source_name,MAX(oh_data_all.ra) as ra,MAX(oh_data_all.dec) as dec,MAX(oh_data_all.l) as l,MAX(oh_data_all.b) as b,MAX(oh_data_all.grp) as grp,MAX(oh_data_all.grpv) as grpv,MAX(oh_data_all.other_name) as other_name,MAX(oh_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(oh_data_all.line) as line,MAX(oh_data_all.freq) as freq,MAX(oh_data_all.pol) as pol,MAX(oh_data_all.vrange) as vrange,MAX(oh_data_all.vpeak) as vpeak,MAX(oh_data_all.peak) as peak,MAX(oh_data_all.fwhm) as fwhm,MAX(oh_data_all.int) as int,MAX(oh_data_all.rms) as rms,MAX(oh_data_all.units) as units,MAX(oh_data_all.units_rms) as units_rms,MAX(oh_data_all.date_txt) as date_txt,MAX(oh_data_all.telescope_ref) as telescope_ref,MAX(oh_data_all.telescope_conf) as telescope_conf,MAX(oh_data_all.v_step) as v_step,MAX(oh_data_all.beam) as beam,MAX(oh_data_all.beam_maj) as beam_maj,MAX(oh_data_all.beam_min) as beam_min,MAX(oh_data_all.beam_pa) as beam_pa,MAX(oh_data_all.ref) as ref,MAX(oh_data_all.list_ref) as list_ref,MAX(oh_data_all.ascii) as ascii,MAX(oh_data_all.url) as url,MAX(oh_data_all.image) as image,MAX(oh_data_all.image2) as image2,MAX(oh_data_all.image3) as image3,MAX(oh_data_all.descr) as descr,MAX(oh_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(oh_data_all.dist) as dist,1 as dist_parallax,MAX(oh_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM oh_data_all  LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'FIS07' AND detected=true AND hide=false GROUP BY ref

select oh_data_all.ra_hms,oh_data_all.dec_dms,oh_data_all.source_name,oh_data_all.ra,oh_data_all.dec,oh_data_all.l,oh_data_all.b,oh_data_all.grp,oh_data_all.grpv,oh_data_all.other_name,oh_data_all.other_desc,oh_data_all.thermal,oh_data_all.line,oh_data_all.freq,oh_data_all.pol,oh_data_all.vrange,oh_data_all.vpeak,oh_data_all.peak,oh_data_all.fwhm,oh_data_all.int,oh_data_all.rms,oh_data_all.units,oh_data_all.units_rms,oh_data_all.date_txt,oh_data_all.telescope_ref,oh_data_all.telescope_conf,oh_data_all.v_step,oh_data_all.beam,oh_data_all.beam_maj,oh_data_all.beam_min,oh_data_all.beam_pa,oh_data_all.ref,oh_data_all.list_ref,oh_data_all.ascii,oh_data_all.url,oh_data_all.image,oh_data_all.image2,oh_data_all.image3,oh_data_all.descr,oh_data_all.id,oh_data_all.mjy_flag,oh_data_all.rms_mjy_flag,oh_data_all.dist,oh_data_all.dist_parallax,oh_data_all.date_txt,line_det,type,simbad_types_cat FROM oh_data_all   LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'FIS07' AND detected=true AND hide=false ORDER BY detected DESC,id

Display data from paper

FIS07 - Large Magnetic Fields and Motions of OH Masers in W75N

Interferometry data

View as list of objects

Detection table from Fish & Reid (2007)