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KUR04 - A Catalog of CH3OH 70-61 A+ Maser Sources in Massive Star-forming Regions

Interferometry data

Short title: Kurtz et al. (2004)
Authors: Kurtz, Stan Hofner, Peter Álvarez, Carlos Vargas
Journal: The Astrophysical Journal Supplement Series, Volume 155, Issue 1, pp. 149-165.
Bibcode:

Target type: High_mass_SFR
Transitions: CH3OH_9(I),CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_84(I),CH3OH_95(I),CH3OH_104(I),CH3OH_6(II)

Abstract
We present a Very Large Array survey of 44 massive star-forming regions in the 44 GHz 7₀-6₁ A⁺ methanol transition 37 fields showed maser emission. Thirty-one sources were also observed in the 23 GHz 9₂-10₁ A⁺ methanol line two fields showed maser emission. Although the 44 GHz line is a class I maser, we find a large number of these masers in relatively close association with H II regions and water masers. Several sources show strong evidence for a correlation between 44 GHz masers and shocked molecular gas, supporting the interpretation that molecular outflows may give rise to class I maser emission. We provide maser positions with arcsecond accuracy that not only locate the masers with respect to other star formation phenomena, but also provide, for the stronger masers, phase referencing sources that can be used to calibrate future 7 mm (44 GHz) observations of these regions.	Comments: Both extremely young massive star formation regions, which have not yet developed an UC HII region, along with more evolved massive star formation regions, which have formed UC HII regions.

Abstract

We present a Very Large Array survey of 44 massive star-forming regions in the 44 GHz 7₀-6₁ A⁺ methanol transition 37 fields showed maser emission. Thirty-one sources were also observed in the 23 GHz 9₂-10₁ A⁺ methanol line two fields showed maser emission. Although the 44 GHz line is a class I maser, we find a large number of these masers in relatively close association with H II regions and water masers. Several sources show strong evidence for a correlation between 44 GHz masers and shocked molecular gas, supporting the interpretation that molecular outflows may give rise to class I maser emission. We provide maser positions with arcsecond accuracy that not only locate the masers with respect to other star formation phenomena, but also provide, for the stronger masers, phase referencing sources that can be used to calibrate future 7 mm (44 GHz) observations of these regions.

Comments:
Both extremely young massive star formation regions, which have not yet developed an UC HII region, along with more evolved massive star formation regions, which have formed UC HII regions.

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Detection table from Kurtz et al. (2004)

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ID	Obs. RA	Obs. Dec	RA offset	Dec offset	l	b	Group id	#	Source name	Image	Descr.	Line	V_peak	F_peak	∫F dv	Telescope	RMS	Beam	PA	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(mas)	(mas)	(deg.)	(deg.)						CH₃OH (class I)	(km/s)	(Jy/beam)	(Jy/beam*km/s)		(mJy/beam)	(arcsec)	(deg.)	Yes/No		(kpc)
1	+05 40 53.32	+35 41 48.7			173.718792	2.698001	G173.719+2.698		S235		Descr	44 GHz (I);				NRAOVLA	60.000	0.57 x 0.37	89.7	+H₂O +CH₃OH I +CH₃OH II -OH	MIXED		1997-1999
	+05 40 53.25	+35 41 46.9	-1051.2 mas	-1799.6 mas	173.719092	2.697535		1	S235 A				-16.6	66.5	45.6
	+05 40 53.38	+35 41 49	898.8 mas	300.4 mas	173.718829	2.698217		2	S235 B				-21	0.79	0.29
	+05 40 53.4	+35 41 51	1198.8 mas	2300.4 mas	173.718392	2.698568		3	S235 C				-17.1	0.46	0.51
	+05 40 53.48	+35 41 41.9	2398.8 mas	-6799.6 mas	173.720684	2.697462		4	S235 D				-17.1	1.32	0.41
	+05 40 53.6	+35 41 48.9	4198.8 mas	200.4 mas	173.719246	2.698834		5	S235 E				-16.2	12.85	3.41
	+05 40 53.61	+35 41 49.6	4348.8 mas	900.4 mas	173.719099	2.698966		6	S235 F				-15.9	3.09	0.82
2	+06 12 53.44	+18 00 23.1			192.584581	-0.042035	G192.599-0.048		S255	Image		44 GHz (I);				NRAOVLA	95.000	0.65 x 0.41	-71.7	+H₂O +CH₃OH I +CH₃OH II	MIXED		1997-1999
	+06 12 53.63	+18 00 25.1	2848.8 mas	1998.8 mas	192.584455	-0.041108		1	S255 A				11.2	150.77	105.51
	+06 12 53.67	+18 00 27.4	3448.8 mas	4298.8 mas	192.583970	-0.040662		2	S255 B				9.5	1.21	0.92
	+06 12 53.75	+18 00 26.8	4648.8 mas	3698.8 mas	192.584268	-0.040464		3	S255 C				10.2	63.42	47.36
	+06 12 53.76	+18 00 28.4	4798.8 mas	5298.8 mas	192.583898	-0.040216		4	S255 D				8.9	1.16	0.57
	+06 12 53.88	+18 00 31.5	6598.8 mas	8398.8 mas	192.583370	-0.039386		5	S255 E				9.5	1.93	1.72
	+06 12 53.9	+18 00 32	6898.8 mas	8898.8 mas	192.583286	-0.039249		6	S255 F				7.2	1.46	0.38
	+06 12 53.98	+18 00 14.4	8098.8 mas	-8701.2 mas	192.587728	-0.041316		7	S255 G				7.2	1.23	0.47
3	+17 20 53.34	-35 47 1.4			351.416774	0.645301	G351.417+0.645		NGC 6334F			44 GHz (I);				NRAOVLA	100.000	1.17 x 0.3	9.7	+H₂O +CH₃OH I +CH₃OH II +OH	MIXED		1997-1999
	+17 20 53.3	-35 47 01	-600 mas	399.2 mas	351.416788	0.645475		1	NGC 6334F A				-5	2
4	+18 06 19.28	-21 37 37.9			8.668385	-0.357661	G8.669-0.357		G8.67-0.36			44 GHz (I);				NRAOVLA	75.000	0.72 x 0.33	6.5	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 06 19.3	-21 37 38	301.2 mas	-101.6 mas	8.668398	-0.357743		1	G8.67-0.36 A				35.4	4
	+18 06 19.3	-21 37 38	301.2 mas	-101.6 mas	8.668398	-0.357743		2	G8.67-0.36 B				33.5	1
5	+18 10 28.5	-19 55 48.7			10.623334	-0.382963	G10.623-0.383		G10.6-0.4	Image		44 GHz (I);				NRAOVLA	80.000	0.69 x 0.35	8.5	+H₂O +CH₃OH I +CH₃OH II +OH	MIXED		1997-1999
	+18 10 27.94	-19 55 45.3	-8400 mas	3398.4 mas	10.623103	-0.380586		1	G10.6-0.4 A				1.6	3.38	1.51
	+18 10 29	-19 55 48.4	7500 mas	298.4 mas	10.624352	-0.384638		2	G10.6-0.4 B				-7.3	2.9	1.88
	+18 10 29.01	-19 55 44.9	7650 mas	3798.4 mas	10.625223	-0.384203		3	G10.6-0.4 C				-7.5	5.28	3.42
	+18 10 29.03	-19 55 46.2	7950 mas	2498.4 mas	10.624944	-0.384446		4	G10.6-0.4 D				-6.8	6.48	4.2
	+18 10 29.07	-19 55 48.2	8550 mas	498.4 mas	10.624533	-0.384851		5	G10.6-0.4 E				-6.2	11.76	21.1
	+18 10 29.08	-19 55 44.8	8700 mas	3898.4 mas	10.625379	-0.384430		6	G10.6-0.4 F				-6	1.99	0.58
	+18 10 29.1	-19 55 47.7	9000 mas	998.4 mas	10.624712	-0.384887		7	G10.6-0.4 G				-6.7	3.66
	+18 10 29.15	-19 55 43.5	9750 mas	5198.4 mas	10.625828	-0.384495		8	G10.6-0.4 H				-8.2	4.96	3.45
	+18 10 29.33	-19 55 48.2	12450 mas	498.4 mas	10.625025	-0.385743		9	G10.6-0.4 I				-8.8	9.05	5.36
6	+18 11 51.27	-17 31 28.5			12.888716	0.489832	G12.889+0.490		G12.89+0.49	Image		44 GHz (I);				NRAOVLA	80.000	0.68 x 0.34	9.8	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 11 50.63	-17 31 36.5	-9600 mas	-8001.2 mas	12.885544	0.490993		1	G12.89+0.49 A				31.5	15.24	7.76
	+18 11 50.72	-17 31 37.3	-8250 mas	-8801.2 mas	12.885522	0.490573		2	G12.89+0.49 B				32.8	0.83	0.42
	+18 11 50.74	-17 31 34.9	-7950 mas	-6401.2 mas	12.886144	0.490824		3	G12.89+0.49 C				34	1.15	1.05
	+18 11 50.86	-17 31 34.3	-6150 mas	-5801.2 mas	12.886520	0.490486		4	G12.89+0.49 D				33.7	0.84	1.32
	+18 11 51.03	-17 31 36.5	-3600 mas	-8001.2 mas	12.886309	0.489600		5	G12.89+0.49 E				32.3	3.32	1.84
7	+18 14 1.03	-18 53 25.2			11.936629	-0.615879	G11.937-0.616		G11.94-0.62			44 GHz (I);				NRAOVLA	80.000	0.77 x 0.37	18.4	+H₂O +CH₃OH I +CH₃OH II	SFR		1997-1999
	+18 14 2.24	-18 53 32	18148.8 mas	-6801.2 mas	11.937251	-0.620971		1	G11.94-0.62 A				38.5	1.38	1.16
8	+18 20 24.14	-16 11 27.2			15.035176	-0.673735	G15.033-0.674		M17			44 GHz (I);				NRAOVLA	80.000	0.68 x 0.38	21.5	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY		1997-1999
	+18 20 24.1	-16 11 27	-598.8 mas	200.4 mas	15.035150	-0.673567		1	M17 A				19.1	2
9	+19 23 43.87	+14 30 36.3			49.490118	-0.387111	G49.488-0.387		W51 E1	Image		44 GHz (I);				NRAOVLA	70.000	0.44 x 0.41	-29.7	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		1997-1999
	+19 23 43.4	+14 30 51.1	-7051.2 mas	14801.2 mas	49.492844	-0.383497		1	W51 E1 A				59.5	1.82	0.84
	+19 23 43.42	+14 30 35.2	-6751.2 mas	-1098.8 mas	49.488991	-0.385656		2	W51 E1 B				56.5	1.45	1.02
	+19 23 43.46	+14 30 35	-6151.2 mas	-1298.8 mas	49.489018	-0.385825		3	W51 E1 C				51.7	1.27	1.18
	+19 23 43.48	+14 30 35.3	-5851.2 mas	-998.8 mas	49.489129	-0.385857		4	W51 E1 D				48.5	7.79	6.04
	+19 23 43.64	+14 30 39	-3451.2 mas	2701.2 mas	49.490340	-0.385939		5	W51 E1 E				56.7	1.02	0.37
	+19 23 43.7	+14 30 31	-2551.2 mas	-5298.8 mas	49.488496	-0.387203		6	W51 E1 F				59.3	0.98	0.65
	+19 23 43.71	+14 30 41.5	-2401.2 mas	5201.2 mas	49.491086	-0.385860		7	W51 E1 G				56.2	7.26	2.87
	+19 23 43.71	+14 30 46.2	-2401.2 mas	9901.2 mas	49.492236	-0.385243		8	W51 E1 H				58	0.89	0.63
	+19 23 43.76	+14 30 15.9	-1651.2 mas	-20398.8 mas	49.484915	-0.389399		9	W51 E1 I				60.6	2	1.11
	+19 23 43.82	+14 30 34.1	-751.2 mas	-2198.8 mas	49.489484	-0.387223		10	W51 E1 J				53.2	10.73	8.88
	+19 23 43.95	+14 30 39.9	1198.8 mas	3601.2 mas	49.491152	-0.386923		11	W51 E1 K				56.5	1.1	0.55
	+19 23 43.96	+14 30 31	1348.8 mas	-5298.8 mas	49.488992	-0.388127		12	W51 E1 L				49.2	75.26	93.03
	+19 23 43.99	+14 30 40.6	1798.8 mas	4301.2 mas	49.491399	-0.386973		13	W51 E1 M				57	1.85	1.86
	+19 23 44.01	+14 30 32.7	2098.8 mas	-3598.8 mas	49.489504	-0.388082		14	W51 E1 N				54	2.81	1.73
	+19 23 44.09	+14 30 41.7	3298.8 mas	5401.2 mas	49.491859	-0.387184		15	W51 E1 O				57.6	1.2	1.23
	+19 23 44.1	+14 30 41.8	3448.8 mas	5501.2 mas	49.491903	-0.387207		16	W51 E1 P				56.2	1.15	0.42
	+19 23 44.14	+14 30 22.3	4048.8 mas	-13998.8 mas	49.487206	-0.389910		17	W51 E1 Q				54.8	0.87	0.42
	+19 23 44.3	+14 30 39.6	6448.8 mas	3301.2 mas	49.491746	-0.388207		18	W51 E1 R				54	1.94	1.79
	+19 23 44.3	+14 30 39.3	6448.8 mas	3001.2 mas	49.491672	-0.388246		19	W51 E1 S				55.7	10.57	4.43
	+19 23 44.33	+14 30 40.9	6898.8 mas	4601.2 mas	49.492121	-0.388142		20	W51 E1 T				55.2	2.46	1.37
10	+20 10 9.15	+31 31 37.3			69.540624	-0.975609	G69.540-0.976		ON1	Image		44 GHz (I);				NRAOVLA	60.000	0.45 x 0.38	-62.2	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+20 10 8.11	+31 31 33.1	-15600 mas	-4200.8 mas	69.537631	-0.973150		1	ON1 A				12.1	15.3	7.19
	+20 10 8.79	+31 31 51.2	-5400 mas	13899.2 mas	69.543163	-0.972431		2	ON1 B				9.2	0.9	0.38
	+20 10 8.98	+31 31 42.2	-2550 mas	4899.2 mas	69.541435	-0.974361		3	ON1 C				11.4	2.79	1.27
	+20 10 10.35	+31 31 21.5	18000 mas	-15800.8 mas	69.539270	-0.981575		4	ON1 D				11.4	3.06	1.16
11	+20 21 44.11	+37 26 37.6			75.782238	0.342473	G75.773+0.343		ON2	Image		44 GHz (I);				NRAOVLA	55.000	0.47 x 0.36	-64.6	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+20 21 44.4	+37 26 48	4348.8 mas	10399.2 mas	75.785159	0.343331		1	ON2 A				0.5	1.63	1.17
	+20 21 44.68	+37 26 41.3	8548.8 mas	3699.2 mas	75.784157	0.341509		2	ON2 B				3.8	8.67	4.13
	+20 21 44.74	+37 26 42.2	9448.8 mas	4599.2 mas	75.784476	0.341489		3	ON2 C				3.1	6.64	3.85
	+20 21 44.92	+37 26 56.3	12148.8 mas	18699.2 mas	75.788034	0.343231		4	ON2 D				0.5	1.87	0.63
12	+20 38 36.84	+42 37 59.4			81.877461	0.783784	G81.876+0.782		W75 N	Image		44 GHz (I);				NRAOVLA	65.000	0.95 x 0.36	30.1	+H₂O +CH₃OH I +CH₃OH II			1997-1999
	+20 38 34.98	+42 37 41.7	-27900 mas	-17701.2 mas	81.870092	0.785329		1	W75 N A				10.2	5.3	1.71
	+20 38 35.71	+42 37 45.3	-16950 mas	-14101.2 mas	81.872245	0.784158		2	W75 N B				9.6	1.1	0.45
	+20 38 35.75	+42 37 42.3	-16350 mas	-17101.2 mas	81.871657	0.783554		3	W75 N C				8.7	1.16	0.37
	+20 38 35.98	+42 37 49.7	-12900 mas	-9701.2 mas	81.873719	0.784242		4	W75 N D				8.1	2.78	0.8
	+20 38 37.19	+42 37 58.3	5250 mas	-1101.2 mas	81.877870	0.782746		5	W75 N E				8.9	46.01	15.79
	+20 38 37.38	+42 37 39.9	8100 mas	-19501.2 mas	81.874162	0.779179		6	W75 N F				6.7	5.95	1.84
13	+20 39 1.01	+42 19 42.7			81.680663	0.539659	G81.711+0.563		DR 21	Image		44 GHz (I);				NRAOVLA	100.000	0.5 x 0.37	-80	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		1997-1999
	+20 39 0.12	+42 19 16.9	-13348.8 mas	-25800.8 mas	81.673306	0.537476		1	DR 21 A				-2	1.31	0.6
	+20 39 1.76	+42 19 21.1	11251.2 mas	-21600.8 mas	81.677305	0.534176		2	DR 21 B				-3.6	52.87	25.68
14	+23 13 45.44	+61 28 9.5			111.54217	0.776609	G111.542+0.769		NGC 7538	Image	Descr	44 GHz (I);				NRAOVLA	80.000	0.96 x 0.44	25.3	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+23 13 43.64	+61 27 52.2	-26998.8 mas	-17301.6 mas	111.537070	0.773459		1	NGC 7538 A				-59.2	2	1
	+23 13 43.69	+61 27 55.6	-26248.8 mas	-13901.6 mas	111.537510	0.774300		2	NGC 7538 B				-56.6	5.74	2.47
	+23 13 43.93	+61 27 30.4	-22648.8 mas	-39101.6 mas	111.535377	0.767616		3	NGC 7538 C				-57.2	3.57	1.33
	+23 13 45.53	+61 27 41.7	1351.2 mas	-27801.6 mas	111.539495	0.769362		4	NGC 7538 D				-57.2	11.97	9.3
15	+18 00 30.43	-24 04 0.5			5.885459	-0.392295	G5.885-0.392		G5.89-0.39	Image		44 GHz (I);				NRAOVLA	60.000	3.68 x 1.46	-15.6	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY		1997-1999
	+18 00 29.52	-24 03 52.6	-13651.2 mas	7901.6 mas	5.885646	-0.388200		1	G5.89-0.39 A				12.2	15.48	12.55
	+18 00 30.36	-24 03 51.6	-1051.2 mas	8901.6 mas	5.887473	-0.390837		2	G5.89-0.39 B				12.5	2.88	2.21
	+18 00 31.25	-24 03 51.9	12298.8 mas	8601.6 mas	5.889081	-0.393818		3	G5.89-0.39 C				8.7	9.04	4.81
	+18 00 31.53	-24 03 50.4	16498.8 mas	10101.6 mas	5.889972	-0.394536		4	G5.89-0.39 D				8.7	5.75	3.27
	+18 00 31.62	-24 03 59.5	17848.8 mas	1001.6 mas	5.887947	-0.396087		5	G5.89-0.39 E				8.3	5.15	2.29
	+18 00 31.86	-24 03 48.2	21448.8 mas	12301.6 mas	5.891126	-0.395322		6	G5.89-0.39 F				9.2	9.99	5.17
16	+18 06 14.8	-20 31 39.2			9.619625	0.194299	G9.621+0.195		G9.62+0.19	Image	Descr	44 GHz (I);				NRAOVLA	60.000	3.68 x 1.44	-19.5	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 06 15.02	-20 31 40.2	3298.8 mas	-998.4 mas	9.619801	0.193415		1	G9.62+0.19 A				5.7	0.93	0.91
	+18 06 15.08	-20 31 32.6	4198.8 mas	6601.6 mas	9.621758	0.194241		2	G9.62+0.19 B				3.7	2.14	1.11
	+18 06 15.29	-20 31 38.6	7348.8 mas	601.6 mas	9.620703	0.192712		3	G9.62+0.19 C				3.5	1.83	1.65
17	+18 08 38.22	-19 51 48.7			10.472637	0.027428	G10.472+0.027		G10.47+0.03	Image		44 GHz (I);				NRAOVLA	75.000	3.14 x 1.33	-7.7	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 08 37.42	-19 51 39.6	-12000 mas	9100.8 mas	10.473327	0.031396		1	G10.47+0.03 A				66.7	1.93	1.72
	+18 08 37.57	-19 51 40.1	-9750 mas	8600.8 mas	10.473491	0.030814		2	G10.47+0.03 B				65.5	0.32	0.11
	+18 08 37.79	-19 51 10.6	-6450 mas	38100.8 mas	10.481075	0.034035		3	G10.47+0.03 C				62.2	0.54	0.19
	+18 08 37.81	-19 51 52.8	-6150 mas	-4099.2 mas	10.470862	0.028281		4	G10.47+0.03 D				66.7	0.61	0.34
	+18 08 37.85	-19 51 13.4	-5550 mas	35300.8 mas	10.480509	0.033452		5	G10.47+0.03 E				68	1.27	0.78
	+18 08 37.98	-19 51 57.3	-3600 mas	-8599.2 mas	10.470092	0.027092		6	G10.47+0.03 F				67.7	0.39	0.29
	+18 08 38.13	-19 51 20.8	-1350 mas	27900.8 mas	10.479244	0.031495		7	G10.47+0.03 G				64.3	0.65	0.57
	+18 08 38.8	-19 51 38.8	8700 mas	9900.8 mas	10.476145	0.026774		8	G10.47+0.03 H				67.7	1.13	0.71
18	+18 12 40	-18 24 21			12.208624	-0.102949	G12.209-0.107		G12.21-0.10	Image	Descr	44 GHz (I);				NRAOVLA	40.000	2.93 x 1.43	-5.2	+H₂O +CH₃OH I +CH₃OH II			1997-1999
	+18 12 39.86	-18 24 14.5	-2101.2 mas	6498.8 mas	12.209943	-0.101597		1	G12.21-0.10 A				27.8	0.96	1.4
	+18 12 39.91	-18 24 17.9	-1351.2 mas	3098.8 mas	12.209209	-0.102223		2	G12.21-0.10 B				27.2	1.19	1.75
	+18 12 39.96	-18 24 17.5	-601.2 mas	3498.8 mas	12.209401	-0.102343		3	G12.21-0.10 C				23.7	4.28	4.78
	+18 12 40.08	-18 24 16.3	1198.8 mas	4698.8 mas	12.209921	-0.102600		4	G12.21-0.10 D				21.3	3.53	0.99
	+18 12 40.15	-18 24 15.9	2248.8 mas	5098.8 mas	12.210152	-0.102789		5	G12.21-0.10 E				19.8	0.37	0.4
	+18 12 40.54	-18 24 46.5	8098.8 mas	-25501.2 mas	12.203435	-0.108221		6	G12.21-0.10 F				25.7	2.5	1.78
19	+18 27 38.15	-11 56 35.5			19.609761	-0.234605	G19.609-0.234		G19.62-0.23	Image		44 GHz (I);				NRAOVLA	60.000	2.61 x 1.53	-4.6	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 27 37.44	-11 56 38.4	-10648.8 mas	-2901.6 mas	19.607702	-0.232418		1	G19.62-0.23 A				41	13.33	15.6
	+18 27 37.91	-11 56 34.6	-3598.8 mas	898.4 mas	19.609527	-0.233623		2	G19.62-0.23 B				46.5	2.48	2.92
20	+18 46 3.86	-02 39 21.5			29.955789	-0.016432	G29.956-0.016		G29.96-0.02	Image		44 GHz (I);				NRAOVLA	55.000	4.18 x 1.89	-28.4	+H₂O +CH₃OH I +CH₃OH II	MIXED		1997-1999
	+18 46 2.58	-02 39 25.5	-19198.8 mas	-4000.8 mas	29.952369	-0.012199		1	G29.96-0.02 A				97	0.62	0.6
	+18 46 3.12	-02 39 28.4	-11098.8 mas	-6900.8 mas	29.952678	-0.014567		2	G29.96-0.02 B				96	5.06	6.16
	+18 46 3.18	-02 39 23.4	-10198.8 mas	-1900.8 mas	29.954028	-0.014155		3	G29.96-0.02 C				94.7	0.75	0.28
	+18 46 3.7	-02 39 27.6	-2398.8 mas	-6100.8 mas	29.953978	-0.016613		4	G29.96-0.02 D				98.8	2.94	2.71
21	+18 47 34.21	-01 12 45			31.411899	0.307493	G31.412+0.307		G31.41+0.31	Image	Descr	44 GHz (I);				NRAOVLA	50.000	2.21 x 1.36	5.4	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 47 34.2	-01 12 49.7	-151.2 mas	-4700 mas	31.410718	0.306935		1	G31.41+0.31 A				94	1.65	0.72
	+18 47 34.34	-01 12 47.7	1948.8 mas	-2700 mas	31.411479	0.306669		2	G31.41+0.31 B				101.7	0.5	0.24
	+18 47 34.59	-01 12 49	5698.8 mas	-4000 mas	31.411632	0.305578		3	G31.41+0.31 C				100.2	1.7	1.04
22	+18 53 18.61	+01 14 57.6			34.25722	0.153166	G34.257+0.153		G34.26+0.15	Image	Descr	44 GHz (I);				NRAOVLA	55.000	2.18 x 1.57	7.6	+H₂O +CH₃OH I +CH₃OH II +OH	MIXED		1997-1999
	+18 53 15.9	+01 15 15.3	-40651.2 mas	17701.2 mas	34.256447	0.165455		1	G34.26+0.15 A				57.8	1.69	1.72
	+18 53 16.1	+01 15 13.3	-37651.2 mas	15701.2 mas	34.256333	0.164460		2	G34.26+0.15 B				57.5	2.76	3.08
	+18 53 16.93	+01 15 10.8	-25201.2 mas	13201.2 mas	34.257291	0.161066		3	G34.26+0.15 C				60.5	1.22	0.67
	+18 53 16.95	+01 15 12.4	-24901.2 mas	14801.2 mas	34.257725	0.161195		4	G34.26+0.15 D				64	0.82	0.35
	+18 53 17.97	+01 14 55.7	-9601.2 mas	-1898.8 mas	34.255534	0.155298		5	G34.26+0.15 E				59.5	0.3	0.21
	+18 53 18.91	+01 14 56.5	4498.8 mas	-1098.8 mas	34.257518	0.151914		6	G34.26+0.15 F				56.3	11.19	9.9
	+18 53 19.2	+01 14 48.3	8848.8 mas	-9298.8 mas	34.256041	0.149801		7	G34.26+0.15 G				58	7.74	7.43
23	+19 13 22.07	+10 50 53.4			45.071226	0.132254	G45.071+0.132		G45.07+0.13	Image		44 GHz (I);				NRAOVLA	45.000	1.98 x 1.6	7	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		1997-1999
	+19 13 22.04	+10 50 59	-448.8 mas	5598.8 mas	45.072547	0.133084		1	G45.07+0.13 A				59.3	1.08	1.89
24	+19 14 25.63	+11 09 25.9			45.46562	0.045456	G45.465+0.053		G45.47+0.07	Image		44 GHz (I);				NRAOVLA	55.000	2.17 x 1.54	5.3	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+19 14 25.69	+11 09 37.3	898.8 mas	11401.6 mas	45.468538	0.046710		1	G45.47+0.07 A				55.9	0.54	0.27
	+19 14 25.8	+11 09 20.7	2548.8 mas	-5198.4 mas	45.464664	0.044169		2	G45.47+0.07 B				64.7	0.55	0.17
	+19 14 25.84	+11 09 24.3	3148.8 mas	-1598.4 mas	45.465625	0.044489		3	G45.47+0.07 C				59.7	0.36	0.15
25	+19 23 40.06	+14 31 9.1			49.490882	-0.369262	G49.488-0.387		W51 N	Image		44 GHz (I);				NRAOVLA	65.000	3.09 x 2.2	26.5	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		1997-1999
	+19 23 37.16	+14 31 7.8	-43501.2 mas	-1298.4 mas	49.485034	-0.359124		1	W51 N A				60	5.19	3.45
	+19 23 38.75	+14 30 42.2	-19651.2 mas	-26898.4 mas	49.481799	-0.368137		2	W51 N B				61.5	1.4	0.58
	+19 23 39.29	+14 31 3.6	-11551.2 mas	-5498.4 mas	49.488067	-0.367247		3	W51 N C				55	0.98	0.56
	+19 23 40.31	+14 31 22.6	3748.8 mas	13501.6 mas	49.494663	-0.368378		4	W51 N D				61.4	0.6	0.22
	+19 23 40.77	+14 31 9.4	10648.8 mas	301.6 mas	49.492309	-0.371746		5	W51 N E				64.2	0.77	0.42
	+19 23 41.51	+14 31 02	21748.8 mas	-7098.4 mas	49.491908	-0.375348		6	W51 N F				66.6	1.24	0.61
	+19 23 42.69	+14 31 33.3	39448.8 mas	24201.6 mas	49.501820	-0.375432		7	W51 N G				62.5	0.85	0.35
26	+20 14 26.05	+41 13 32.4			78.122234	3.63276	G78.122+3.633		20126+4104	Image	Descr	44 GHz (I);				NRAOVLA	15.000	1.81 x 1.48	-18	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+20 14 25.19	+41 13 35.8	-12901.2 mas	3398.8 mas	78.121533	3.635529		1	20126+4104 A				-2.3	1.7	1.82
	+20 14 25.21	+41 13 35.2	-12601.2 mas	2798.8 mas	78.121429	3.635385		2	20126+4104 B				-2.3	2.27	1.91
	+20 14 25.33	+41 13 40.1	-10801.2 mas	7698.8 mas	78.122774	3.635822		3	20126+4104 C				-3.2	1.45	0.46
	+20 14 25.41	+41 13 38	-9601.2 mas	5598.8 mas	78.122425	3.635291		4	20126+4104 D				-3.5	3.91	2.62
	+20 14 26.71	+41 13 29.9	9898.8 mas	-2501.2 mas	78.122798	3.630652		5	20126+4104 E				-4.5	2.18	1.03
27	+20 39 0.93	+42 22 48.7			81.721526	0.571279	G81.711+0.563		DR 21(OH)	Image	Descr	44 GHz (I);				NRAOVLA	50.000	1.89 x 1.51	-22.5	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		1997-1999
	+20 38 59.28	+42 22 48.7	-24750 mas	1.6 mas	81.718437	0.575311		1	DR 21(OH) A				0.5	236.53	133.94
	+20 38 59.33	+42 22 47.3	-24000 mas	-1398.4 mas	81.718222	0.574952		2	DR 21(OH) B				-1.3	8.81	5.26
	+20 38 59.55	+42 22 5.1	-20700 mas	-43598.4 mas	81.709328	0.567285		3	DR 21(OH) C				-1	1.58	0.45
	+20 38 59.87	+42 22 45.8	-15900 mas	-2898.4 mas	81.718902	0.573379		4	DR 21(OH) D				-0.7	11.74	6.46
	+20 38 59.88	+42 22 49.9	-15750 mas	1201.6 mas	81.719825	0.574048		5	DR 21(OH) E				-10.1	0.91	0.52
	+20 38 59.93	+42 22 44.7	-15000 mas	-3998.4 mas	81.718772	0.573047		6	DR 21(OH) F				0.1	24.3	11.68
	+20 39 0.17	+42 22 47.5	-11400 mas	-1198.4 mas	81.719839	0.572934		7	DR 21(OH) G				-1.7	8.99	9.16
	+20 39 0.25	+42 22 46	-10200 mas	-2698.4 mas	81.719658	0.572485		8	DR 21(OH) H				-0.2	48.48	30.23
	+20 39 0.53	+42 22 47.5	-6000 mas	-1198.4 mas	81.720512	0.572054		9	DR 21(OH) I				1.5	2.23	2.22
	+20 39 1.22	+42 22 40.8	4350 mas	-7898.4 mas	81.720327	0.569236		10	DR 21(OH) J				-3	0.85	0.68
	+20 39 1.49	+42 22 44.7	8400 mas	-3998.4 mas	81.721692	0.569236		11	DR 21(OH) K				-3.3	1.25	0.96
	+20 39 1.51	+42 22 40.6	8700 mas	-8098.4 mas	81.720826	0.568494		12	DR 21(OH) L				-4.8	5.79	5.53
	+20 39 1.67	+42 22 43.1	11100 mas	-5598.4 mas	81.721677	0.568525		13	DR 21(OH) M				-6.7	6.78	2.71
	+20 39 2.02	+42 22 40.9	16350 mas	-7798.4 mas	81.721847	0.567299		14	DR 21(OH) N				-4.5	4.66	10.29
	+20 39 2.07	+42 22 44.9	17100 mas	-3798.4 mas	81.722822	0.567852		15	DR 21(OH) O				-3.7	6.93	3.99
	+20 39 2.17	+42 22 40.9	18600 mas	-7798.4 mas	81.722128	0.566932		16	DR 21(OH) P				-5.3	2.15	2.59
	+20 39 2.23	+42 22 43.7	19500 mas	-4998.4 mas	81.722857	0.567259		17	DR 21(OH) Q				-5.5	11.33	10.35
28	+18 17 24.5	-17 22 13			13.657023	-0.600137	G13.657-0.600		Mol 45			44 GHz (I);				NRAOVLA	40.000	2.9 x 1.38	4.8	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 17 22.94	-17 22 13.8	-23398.8 mas	-799.2 mas	13.653883	-0.594782		1	Mol 45 A				48.3	2.91	3.7
	+18 17 23.1	-17 22 14.6	-20998.8 mas	-1599.2 mas	13.653989	-0.595447		2	Mol 45 B				49	2.89	1.7
	+18 17 23.29	-17 22 10	-18148.8 mas	3000.8 mas	13.655473	-0.595506		3	Mol 45 C				49.6	0.62	0.25
	+18 17 23.31	-17 22 13	-17848.8 mas	0.8 mas	13.654777	-0.595971		4	Mol 45 D				47.6	0.97	1.69
	+18 17 23.35	-17 22 11.6	-17248.8 mas	1400.8 mas	13.655195	-0.595927		5	Mol 45 E				47.3	5.41	4.67
	+18 17 23.84	-17 22 15.3	-9898.8 mas	-2299.2 mas	13.655215	-0.598130		6	Mol 45 F				49.6	0.47	0.14
	+18 17 24.01	-17 22 12.2	-7348.8 mas	800.8 mas	13.656294	-0.598316		7	Mol 45 G				46.8	1.96	24.85
	+18 17 24.08	-17 22 14.1	-6298.8 mas	-1099.2 mas	13.655961	-0.598812		8	Mol 45 H				48.5	27.45
	+18 17 24.22	-17 22 12.6	-4198.8 mas	400.8 mas	13.656592	-0.599104		9	Mol 45 I				47.5	1.46
29	+18 19 7.5	-16 11 21			14.891907	-0.40258	G14.891-0.404		Mol 50			44 GHz (I);				NRAOVLA	40.000	2.83 x 1.39	5.2	+H₂O +CH₃OH I -CH₃OH II	MIXED		1997-1999
	+18 19 7.64	-16 11 25.6	2100 mas	-4598.8 mas	14.891046	-0.403678		1	Mol 50 A				62.3	7.81	5.15
30	+18 19 12.49	-20 47 23.6			10.843888	-2.592048	G10.841-2.592		GGD 27	Image		44 GHz (I);				NRAOVLA	65.000	3.37 x 1.4	-16.1	+H₂O +CH₃OH I +CH₃OH II	MIXED		1997-1999
	+18 19 12.45	-20 47 24.8	-601.2 mas	-1199.6 mas	10.843520	-2.592067		1	GGD 27 A				13.2	154.02	119.02
31	+18 53 38.1	+01 50 27			34.820658	0.350665	G34.821+0.352		Mol 75			44 GHz (I);				NRAOVLA	45.000	2.2 x 1.51	6.2	+H₂O +CH₃OH I +CH₃OH II -SiO	SFR		1997-1999
	+18 53 37.71	+01 50 25.4	-5850 mas	-1598.8 mas	34.819522	0.351908		1	Mol 75 A				56.7	0.67	0.26
32	+18 55 16.5	+03 05 07			36.114994	0.553705	G36.115+0.554		Mol 77			44 GHz (I);				NRAOVLA	40.000	2.1 x 1.42	0.1	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1997-1999
	+18 55 16.78	+03 05 6.7	4200 mas	-300.8 mas	36.115451	0.552630		1	Mol 77 A				75.7	0.57	0.24
33	+18 59 3.4	+03 53 22			37.261288	0.08123	G37.267+0.082		Mol 82			44 GHz (I);				NRAOVLA	40.000	2.11 x 1.41	-1.9	+H₂O +CH₃OH I -CH₃OH II	SFR		1997-1999
	+18 59 3.72	+03 53 42.9	4798.8 mas	20901.6 mas	37.267060	0.082700		1	Mol 82 A				90.3	1.03	0.44
34	+19 11 37.4	+08 46 30			43.034829	-0.447258	G43.038-0.453		Mol 98			44 GHz (I);				NRAOVLA	40.000	2.02 x 1.47	5.7	+H₂O +CH₃OH I +CH₃OH II	SFR		1997-1999
	+19 11 38.78	+08 46 37.9	20701.2 mas	7900 mas	43.039404	-0.451281		1	Mol 98 A				58	3.84	1.62
	+19 11 38.78	+08 46 33.1	20701.2 mas	3100 mas	43.038222	-0.451898		2	Mol 98 B				57.3	0.91	0.51
	+19 11 39.15	+08 46 30.9	26251.2 mas	900 mas	43.038385	-0.453531		3	Mol 98 C				56.2	0.41	0.25
35	+21 32 31.5	+51 02 22			94.261715	-0.411223	G94.262-0.411		Mol 136		Descr	44 GHz (I);				NRAOVLA	35.000	1.9 x 1.19	-22.3	+H₂O +CH₃OH I -CH₃OH II	SFR		1997-1999
	+21 32 30.82	+51 02 14.9	-10200 mas	-7098.4 mas	94.259068	-0.411461		1	Mol 136 A				-47.9	1.12	0.94
36	+21 40 42.4	+58 16 10			99.98261	4.169615	G99.982+4.170		Mol 138	Image	Descr	44 GHz (I);				NRAOVLA	40.000	2.55 x 1.85	-11.6	+H₂O +CH₃OH I +CH₃OH II	GALAXY		1997-1999
	+21 40 40.95	+58 16 16.3	-21751.2 mas	6301.6 mas	99.981374	4.173027		1	Mol 138 A				-0.8	11.63	6.21
	+21 40 40.97	+58 16 6.8	-21451.2 mas	-3198.4 mas	99.979661	4.171015		2	Mol 138 B				0	1.28	0.43
	+21 40 41.76	+58 16 15.4	-9601.2 mas	5401.6 mas	99.982546	4.171668		3	Mol 138 C				6.5	4.46	6.46
37	+23 40 53.2	+61 10 21			114.530655	-0.543181	G114.531-0.543		Mol 160		Descr	44 GHz (I);				NRAOVLA	30.000	2.01 x 1.25	-2.2	+H₂O +CH₃OH I -CH₃OH II	SFR		1997-1999
	+23 40 54.46	+61 10 30.9	18898.8 mas	9900 mas	114.533835	-0.541215		1	Mol 160 A				-49.7	0.66	0.23
	+23 40 54.55	+61 10 31	20248.8 mas	10000 mas	114.534016	-0.541237		2	Mol 160 B				-51	0.45	0.37
	+23 40 54.61	+61 10 29	21148.8 mas	8000 mas	114.533983	-0.541805		3	Mol 160 C				-52	1.15	0.55
	+23 40 54.74	+61 10 28.7	23098.8 mas	7700 mas	114.534212	-0.541956		4	Mol 160 D				-51.7	0.52	0.56

Non-detection table from Kurtz et al. (2004)