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BAR09 - The diversity of methanol maser morphologies from VLBI observations

Interferometry data

Short title: Bartkiewicz et al. (2009)
Authors: Bartkiewicz, A. Szymczak, M. van Langevelde, H. J. Richards, A. M. S. Pihlström, Y. M.
Journal: Astronomy and Astrophysics, Volume 502, Issue 1, 2009, pp.155-173
Bibcode:

Target type: Known_Class_II,YSO
Transitions: CH3OH_6(II)

Abstract
Context: The 6.7 GHz methanol maser marks an early stage of high-mass star formation, but the origin of this maser is currently a matter of debate. In particular it is unclear whether the maser emission arises in discs, outflows or behind shocks running into rotating molecular clouds. Aims: We investigated which structures the methanol masers trace in the environment of high-mass protostar candidates by observing a homogenous sample of methanol masers selected from Torun surveys. We also probed their origins by looking for associated H II regions and IR emission. Methods: We selected 30 methanol sources with improved position accuracies achieved using MERLIN and another 3 from the literature. We imaged 31 of these using the European VLBI Network's expanded array of telescopes with 5-cm (6-GHz) receivers. We used the VLA to search for 8.4 GHz radio continuum counterparts and inspected Spitzer GLIMPSE data at 3.6-8 mum from the archive. Results: High angular resolution images allowed us to analyze the morphology and kinematics of the methanol masers in great detail and verify their association with radio continuum and mid-infrared emission. A new class of ``ring-like'' methanol masers in star-forming regions appeared to be suprisingly common, 29% of the sample. Conclusions: The new morphology strongly suggests that methanol masers originate in the disc or torus around a proto- or a young massive star. However, the maser kinematics indicate the strong influence of outflow or infall. This suggests that they form at the interface between the disc/torus and a flow. This is also strongly supported by Spitzer results because the majority of the masers coincide with 4.5 mum emission to within less than 1´´. Only four masers are associated with the central parts of UC H II regions. This implies that 6.7 GHz methanol maser emission occurs before H II region observable at cm wavelengths is formed. Tables 1-3, 6 and Figs. 3, 6 are only available in electronic form at http://www.aanda.org eprintid: arXiv:0905.3469

Abstract

Context: The 6.7 GHz methanol maser marks an early stage of high-mass star formation, but the origin of this maser is currently a matter of debate. In particular it is unclear whether the maser emission arises in discs, outflows or behind shocks running into rotating molecular clouds.
Aims: We investigated which structures the methanol masers trace in the environment of high-mass protostar candidates by observing a homogenous sample of methanol masers selected from Torun surveys. We also probed their origins by looking for associated H II regions and IR emission.
Methods: We selected 30 methanol sources with improved position accuracies achieved using MERLIN and another 3 from the literature. We imaged 31 of these using the European VLBI Network's expanded array of telescopes with 5-cm (6-GHz) receivers. We used the VLA to search for 8.4 GHz radio continuum counterparts and inspected Spitzer GLIMPSE data at 3.6-8 mum from the archive.
Results: High angular resolution images allowed us to analyze the morphology and kinematics of the methanol masers in great detail and verify their association with radio continuum and mid-infrared emission. A new class of ``ring-like'' methanol masers in star-forming regions appeared to be suprisingly common, 29% of the sample.
Conclusions: The new morphology strongly suggests that methanol masers originate in the disc or torus around a proto- or a young massive star. However, the maser kinematics indicate the strong influence of outflow or infall. This suggests that they form at the interface between the disc/torus and a flow. This is also strongly supported by Spitzer results because the majority of the masers coincide with 4.5 mum emission to within less than 1´´. Only four masers are associated with the central parts of UC H II regions. This implies that 6.7 GHz methanol maser emission occurs before H II region observable at cm wavelengths is formed. Tables 1-3, 6 and Figs. 3, 6 are only available in electronic form at eprintid:

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Detection table from Bartkiewicz et al. (2009)

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ID	Obs. RA	Obs. Dec	RA offset	Dec offset	l	b	Group id	#	Source name	Image	Descr.	Line	V_peak	FWHM	F_peak	Telescope	RMS	Beam	PA	Detection	Type	Dist. (parallax)	Date
	(J2000)	(J2000)	(mas)	(mas)	(deg.)	(deg.)						CH₃OH (class II)	(km/s)	(km/s)	(Jy/beam)		(mJy/beam)	(arcsec)	(deg.)	Yes/No		(kpc)
1	+18 31 6.33794	-10 21 37.4108			21.406761	-0.254187	G21.407-0.254		G21.407-0.254	Image		6.6 GHz (II)	89	3	2.76	MERLIN	10.000	5 x 15	-87	+H₂O +CH₃OH II	SFR		2006 Feb 22
	+18 31 6.33792	-10 21 37.4112	0 mas	0 mas	21.406761	-0.254187		1	G21.407-0.254 A				89.04		2762
	+18 31 6.33792	-10 21 37.4015	-0.0192 mas	9.725 mas	21.406763	-0.254186		2	G21.407-0.254 B				89.303		1426
	+18 31 6.33732	-10 21 37.4375	-8.9947 mas	-26.326 mas	21.406753	-0.254189		3	G21.407-0.254 C				90.094		307
	+18 31 6.32883	-10 21 37.4062	-136.302 mas	5.042 mas	21.406745	-0.254154		4	G21.407-0.254 D				91.148		891
	+18 31 6.33704	-10 21 37.4349	-13.156 mas	-23.683 mas	21.406753	-0.254187		5	G21.407-0.254 E				91.412		117
	+18 31 6.3361	-10 21 37.4097	-27.3535 mas	1.532 mas	21.406758	-0.254181		6	G21.407-0.254 F				91.587		422
2	+18 32 29.407	-09 29 29.684			22.33478	-0.154858	G22.335-0.155		G22.335-0.155	Image		6.6 GHz (II)	35.6	3.1	1.71	MERLIN	10.000	5 x 15	16	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2006 Feb 22
	+18 32 29.407	-09 29 29.6844	0 mas	0 mas	22.334779	-0.154858		1	G22.335-0.155 A				35.626		1714
	+18 32 29.4062	-09 29 29.7318	-10.9782 mas	-47.406 mas	22.334766	-0.154861		2	G22.335-0.155 B				38.174		125
3	+18 31 44.1205	-09 22 12.3129			22.356505	0.06636	G22.356+0.066		G22.357+0.066	Image	Descr	6.6 GHz (II)	79.7	9.2	10.54	MERLIN	4.000	6 x 12	-5	+CH₃OH II			2007 Jun 13
	+18 31 44.1206	-09 22 12.3132	0 mas	0 mas	22.356505	0.066360		1	G22.357+0.066 A				79.708		10544
	+18 31 44.1207	-09 22 12.3192	1.0074 mas	-6.01 mas	22.356503	0.066359		2	G22.357+0.066 B				80.235		10067
	+18 31 44.1208	-09 22 12.3315	2.8964 mas	-18.349 mas	22.356501	0.066357		3	G22.357+0.066 C				81.114		1422
	+18 31 44.131	-09 22 12.3595	155.087 mas	-46.323 mas	22.356513	0.066316		4	G22.357+0.066 D				81.465		492
	+18 31 44.1299	-09 22 12.3319	139.279 mas	-18.679 mas	22.356518	0.066324		5	G22.357+0.066 E				83.574		309
	+18 31 44.1301	-09 22 12.2466	141.528 mas	66.569 mas	22.356539	0.066334		6	G22.357+0.066 F				84.101		156
	+18 31 44.1294	-09 22 12.2374	132.033 mas	75.769 mas	22.356540	0.066338		7	G22.357+0.066 G				84.804		176
	+18 31 44.1244	-09 22 12.1047	55.7575 mas	208.539 mas	22.356563	0.066373		8	G22.357+0.066 H				88.143		602
	+18 31 44.1252	-09 22 12.036	68.1772 mas	277.201 mas	22.356582	0.066379		9	G22.357+0.066 I				88.494		250
	+18 31 44.1244	-09 22 12.1057	56.6464 mas	207.544 mas	22.356563	0.066373		10	G22.357+0.066 J				88.67		476
4	+18 34 55.2121	-08 49 14.8926			23.206566	-0.377743	G23.207-0.378		G23.207-0.377	Image		6.6 GHz (II)	77.1	13.2	9.3	MERLIN	4.000	6 x 16	-69	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2004 Nov 11
	+18 34 55.2055	-08 49 14.9587	-101.397 mas	-64.297 mas	23.206537	-0.377727		1	G23.207-0.377 A				72.553		141
	+18 34 55.2101	-08 49 14.9119	-32.5775 mas	-17.531 mas	23.206557	-0.377738		2	G23.207-0.377 B				73.959		194
	+18 34 55.2123	-08 49 14.8845	0.5751 mas	9.943 mas	23.206568	-0.377742		3	G23.207-0.377 C				75.19		226
	+18 34 55.2105	-08 49 14.8964	-25.7012 mas	-1.98 mas	23.206562	-0.377738		4	G23.207-0.377 D				75.014		421
	+18 34 55.1943	-08 49 14.8682	-269.644 mas	26.192 mas	23.206538	-0.377674		5	G23.207-0.377 E				75.453		893
	+18 34 55.2161	-08 49 14.8526	57.3581 mas	41.821 mas	23.206583	-0.377752		6	G23.207-0.377 F				75.629		647
	+18 34 55.2102	-08 49 14.906	-30.8269 mas	-11.614 mas	23.206559	-0.377737		7	G23.207-0.377 G				76.069		229
	+18 34 55.2115	-08 49 14.8912	-11.6581 mas	3.199 mas	23.206565	-0.377740		8	G23.207-0.377 H				76.596		4748
	+18 34 55.2122	-08 49 14.8944	0 mas	0 mas	23.206566	-0.377744		9	G23.207-0.377 I				77.123		9292
	+18 34 55.2142	-08 49 14.8987	29.4751 mas	-4.288 mas	23.206568	-0.377751		10	G23.207-0.377 J				77.475		3387
	+18 34 55.213	-08 49 14.8894	11.0845 mas	4.991 mas	23.206568	-0.377746		11	G23.207-0.377 K				77.739		3096
	+18 34 55.2158	-08 49 14.9278	53.0729 mas	-33.427 mas	23.206564	-0.377761		12	G23.207-0.377 L				78.793		541
	+18 34 55.1978	-08 49 14.8635	-217.124 mas	30.913 mas	23.206546	-0.377687		13	G23.207-0.377 M				78.881		286
	+18 34 55.2154	-08 49 14.9253	47.4388 mas	-30.923 mas	23.206564	-0.377759		14	G23.207-0.377 N				78.969		577
	+18 34 55.2156	-08 49 14.9267	50.4581 mas	-32.346 mas	23.206564	-0.377760		15	G23.207-0.377 O				79.233		1319
	+18 34 55.2032	-08 49 15.0859	-135.904 mas	-191.481 mas	23.206501	-0.377735		16	G23.207-0.377 P				79.496		277
	+18 34 55.2047	-08 49 15.0115	-113.84 mas	-117.084 mas	23.206523	-0.377731		17	G23.207-0.377 Q				79.672		213
	+18 34 55.2084	-08 49 14.9659	-57.8547 mas	-71.483 mas	23.206541	-0.377739		18	G23.207-0.377 R				79.936		315
	+18 34 55.2013	-08 49 15.0415	-163.915 mas	-147.143 mas	23.206509	-0.377722		19	G23.207-0.377 S				80.727		7092
	+18 34 55.2032	-08 49 15.0337	-136.258 mas	-139.26 mas	23.206514	-0.377728		20	G23.207-0.377 T				81.869		8967
	+18 34 55.2028	-08 49 15.0352	-141.08 mas	-140.772 mas	23.206513	-0.377727		21	G23.207-0.377 U				81.869		5874
	+18 34 55.2018	-08 49 15.04	-157.207 mas	-145.562 mas	23.206510	-0.377724		22	G23.207-0.377 V				82.045		1104
	+18 34 55.2021	-08 49 15.042	-151.96 mas	-147.62 mas	23.206510	-0.377725		23	G23.207-0.377 W				82.836		1190
	+18 34 55.2091	-08 49 15.0065	-47.3987 mas	-112.077 mas	23.206532	-0.377746		24	G23.207-0.377 X				84.858		791
5	+18 33 14.3248	-08 23 57.4723			23.389056	0.185382	G23.389+0.185		G23.389+0.185	Image		6.6 GHz (II)	75.4	6	21.55	MERLIN	4.000	6 x 16	59	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2004 Nov 11
	+18 33 14.3197	-08 23 57.4402	-78.2268 mas	32.644 mas	23.389054	0.185405		1	G23.389+0.185 A				72.641		6398
	+18 33 14.3284	-08 23 57.4404	52.4158 mas	32.426 mas	23.389070	0.185373		2	G23.389+0.185 B				73.784		9326
	+18 33 14.328	-08 23 57.4339	46.8761 mas	38.888 mas	23.389071	0.185375		3	G23.389+0.185 C				74.399		2978
	+18 33 14.322	-08 23 57.4409	-43.2789 mas	31.94 mas	23.389058	0.185396		4	G23.389+0.185 D				74.575		4700
	+18 33 14.3278	-08 23 57.4088	43.454 mas	63.975 mas	23.389077	0.185379		5	G23.389+0.185 E				74.75		311
	+18 33 14.3276	-08 23 57.4588	41.0708 mas	14.015 mas	23.389064	0.185373		6	G23.389+0.185 F				74.75		267
	+18 33 14.327	-08 23 57.4019	31.5347 mas	70.896 mas	23.389077	0.185383		7	G23.389+0.185 G				74.838		19723
	+18 33 14.3277	-08 23 57.4228	41.8691 mas	49.956 mas	23.389073	0.185378		8	G23.389+0.185 H				74.926		1272
	+18 33 14.3249	-08 23 57.4728	0 mas	0 mas	23.389056	0.185381		9	G23.389+0.185 I				75.453		21554
	+18 33 14.3211	-08 23 57.3189	-57.2121 mas	153.902 mas	23.389086	0.185415		10	G23.389+0.185 J				75.541		397
	+18 33 14.3206	-08 23 57.3292	-64.5014 mas	143.649 mas	23.389083	0.185416		11	G23.389+0.185 K				75.805		3708
	+18 33 14.3301	-08 23 57.3279	78.5948 mas	144.939 mas	23.389101	0.185381		12	G23.389+0.185 L				76.069		6571
	+18 33 14.3187	-08 23 57.318	-93.2091 mas	154.836 mas	23.389082	0.185424		13	G23.389+0.185 M				76.332		4516
	+18 33 14.3202	-08 23 57.3276	-70.0292 mas	145.236 mas	23.389083	0.185417		14	G23.389+0.185 N				76.596		1072
	+18 33 14.3263	-08 23 57.3974	20.9791 mas	75.445 mas	23.389077	0.185386		15	G23.389+0.185 O				76.948		721
	+18 33 14.3203	-08 23 57.3257	-69.1893 mas	147.11 mas	23.389083	0.185417		16	G23.389+0.185 P				77.035		4860
	+18 33 14.32	-08 23 57.3219	-73.803 mas	150.857 mas	23.389084	0.185419		17	G23.389+0.185 Q				77.475		234
	+18 33 14.3228	-08 23 57.3148	-31.8834 mas	157.972 mas	23.389091	0.185409		18	G23.389+0.185 R				77.563		485
6	+18 34 51.5648	-08 18 21.3045			23.656704	-0.127317	G23.657-0.127		G23.657-0.127	Image	Descr	6.6 GHz (II)	82.6	10.8	3.62	MERLIN	4.000	6 x 16	-82	-H₂O -CH₃OH I +CH₃OH II +OH -SiO	SFR		2004 Nov 11
	+18 34 51.5644	-08 18 21.0749	-5.0421 mas	229.872 mas	23.656760	-0.127286		1	G23.657-0.127 A				77.563		816
	+18 34 51.5632	-08 18 21.0721	-22.2581 mas	232.7 mas	23.656758	-0.127281		2	G23.657-0.127 B				77.563		333
	+18 34 51.56	-08 18 21.0766	-71.1275 mas	228.164 mas	23.656751	-0.127270		3	G23.657-0.127 C				78.266		1059
	+18 34 51.5684	-08 18 21.1332	54.5928 mas	171.619 mas	23.656753	-0.127308		4	G23.657-0.127 D				78.881		336
	+18 34 51.5717	-08 18 21.1877	105.343 mas	117.072 mas	23.656746	-0.127327		5	G23.657-0.127 E				79.584		162
	+18 34 51.5564	-08 18 21.0923	-124.744 mas	212.498 mas	23.656740	-0.127259		6	G23.657-0.127 F				80.024		1595
	+18 34 51.5621	-08 18 21.0912	-39.3568 mas	213.554 mas	23.656751	-0.127280		7	G23.657-0.127 G				80.112		977
	+18 34 51.5662	-08 18 21.3181	21.7712 mas	-13.296 mas	23.656703	-0.127324		8	G23.657-0.127 H				80.639		850
	+18 34 51.5657	-08 18 21.3713	14.3113 mas	-66.486 mas	23.656689	-0.127329		9	G23.657-0.127 I				80.727		375
	+18 34 51.5543	-08 18 21.3101	-156.977 mas	-5.288 mas	23.656682	-0.127279		10	G23.657-0.127 J				80.99		124
	+18 34 51.5649	-08 18 21.3523	2.9967 mas	-47.467 mas	23.656692	-0.127323		11	G23.657-0.127 K				81.166		362
	+18 34 51.5665	-08 18 21.3751	26.3472 mas	-70.278 mas	23.656690	-0.127332		12	G23.657-0.127 L				81.166		68
	+18 34 51.5652	-08 18 21.3085	7.2432 mas	-3.702 mas	23.656704	-0.127319		13	G23.657-0.127 M				81.518		588
	+18 34 51.5678	-08 18 21.1483	46.3136 mas	156.525 mas	23.656748	-0.127308		14	G23.657-0.127 N				81.781		126
	+18 34 51.5654	-08 18 21.2939	10.2711 mas	10.877 mas	23.656708	-0.127318		15	G23.657-0.127 O				81.869		806
	+18 34 51.5656	-08 18 21.3179	13.2471 mas	-13.097 mas	23.656702	-0.127322		16	G23.657-0.127 P				81.869		90
	+18 34 51.5646	-08 18 21.3485	-1.5481 mas	-43.725 mas	23.656693	-0.127322		17	G23.657-0.127 Q				82.133		132
	+18 34 51.5677	-08 18 21.148	44.5072 mas	156.813 mas	23.656748	-0.127307		18	G23.657-0.127 R				82.309		393
	+18 34 51.5647	-08 18 21.3048	0 mas	0 mas	23.656704	-0.127317		19	G23.657-0.127 S				82.573		3623
	+18 34 51.5675	-08 18 21.1425	41.5298 mas	162.288 mas	23.656749	-0.127306		20	G23.657-0.127 T				82.836		168
	+18 34 51.5507	-08 18 21.2935	-210.948 mas	11.345 mas	23.656680	-0.127264		21	G23.657-0.127 U				83.1		182
	+18 34 51.5615	-08 18 21.3403	-47.8646 mas	-35.503 mas	23.656689	-0.127309		22	G23.657-0.127 V				83.276		1018
	+18 34 51.5693	-08 18 21.221	69.2069 mas	83.751 mas	23.656733	-0.127323		23	G23.657-0.127 W				83.539		80
	+18 34 51.5648	-08 18 21.286	0.7674 mas	18.778 mas	23.656708	-0.127314		24	G23.657-0.127 X				83.979		143
	+18 34 51.5612	-08 18 21.3374	-52.8072 mas	-32.595 mas	23.656689	-0.127308		25	G23.657-0.127 Y				83.979		557
	+18 34 51.5558	-08 18 21.3089	-133.761 mas	-4.14 mas	23.656686	-0.127284		26	G23.657-0.127 Z				84.243		358
	+18 34 51.5678	-08 18 21.1648	45.6887 mas	140.016 mas	23.656744	-0.127310		27	G23.657-0.127 A1				84.858		548
	+18 34 51.5635	-08 18 21.3205	-17.8008 mas	-15.664 mas	23.656697	-0.127314		28	G23.657-0.127 B1				86.264		797
	+18 34 51.5634	-08 18 21.3235	-19.72 mas	-18.701 mas	23.656696	-0.127314		29	G23.657-0.127 C1				86.791		746
	+18 34 51.5636	-08 18 21.3318	-16.741 mas	-26.968 mas	23.656695	-0.127316		30	G23.657-0.127 D1				87.231		96
	+18 34 51.5634	-08 18 21.3343	-20.3523 mas	-29.526 mas	23.656694	-0.127315		31	G23.657-0.127 E1				87.67		280
7	+18 35 12.366	-08 17 39.3577			23.706533	-0.198086	G23.706-0.198		G23.707-0.198	Image	Descr	6.6 GHz (II)	79.2	23.3	6.06	MERLIN	4.000	6 x 16	-83	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2004 Nov 11
	+18 35 12.3674	-08 17 39.3394	20.4283 mas	18.154 mas	23.706540	-0.198089		1	G23.707-0.198 A				58.578		377
	+18 35 12.3592	-08 17 39.3571	-101.288 mas	0.549 mas	23.706520	-0.198061		2	G23.707-0.198 B				71.41		200
	+18 35 12.359	-08 17 39.3632	-105.405 mas	-5.633 mas	23.706518	-0.198061		3	G23.707-0.198 C				71.762		128
	+18 35 12.3653	-08 17 39.3004	-10.2 mas	57.17 mas	23.706546	-0.198076		4	G23.707-0.198 D				72.993		667
	+18 35 12.3659	-08 17 39.3239	-1.6921 mas	33.73 mas	23.706541	-0.198081		5	G23.707-0.198 E				73.344		92
	+18 35 12.366	-08 17 39.3301	0.3488 mas	27.482 mas	23.706540	-0.198083		6	G23.707-0.198 F				73.608		100
	+18 35 12.3658	-08 17 39.3194	-3.2461 mas	38.198 mas	23.706542	-0.198080		7	G23.707-0.198 G				74.223		672
	+18 35 12.366	-08 17 39.3339	0.3933 mas	23.685 mas	23.706539	-0.198083		8	G23.707-0.198 H				74.575		1845
	+18 35 12.366	-08 17 39.3285	-0.0089 mas	29.083 mas	23.706540	-0.198082		9	G23.707-0.198 I				75.102		404
	+18 35 12.3671	-08 17 39.3676	16.6285 mas	-9.96 mas	23.706533	-0.198091		10	G23.707-0.198 J				75.19		306
	+18 35 12.366	-08 17 39.3308	0.3577 mas	26.821 mas	23.706540	-0.198083		11	G23.707-0.198 K				75.629		249
	+18 35 12.3661	-08 17 39.3378	0.9722 mas	19.84 mas	23.706538	-0.198084		12	G23.707-0.198 L				76.157		3319
	+18 35 12.3661	-08 17 39.3399	0.9589 mas	17.658 mas	23.706538	-0.198084		13	G23.707-0.198 M				76.596		2054
	+18 35 12.3661	-08 17 39.3414	0.8772 mas	16.239 mas	23.706537	-0.198084		14	G23.707-0.198 N				77.299		3473
	+18 35 12.365	-08 17 39.372	-14.6856 mas	-14.398 mas	23.706528	-0.198084		15	G23.707-0.198 O				78.266		219
	+18 35 12.3651	-08 17 39.372	-13.7935 mas	-14.418 mas	23.706528	-0.198084		16	G23.707-0.198 P				78.53		358
	+18 35 12.366	-08 17 39.3538	-0.4334 mas	3.753 mas	23.706534	-0.198085		17	G23.707-0.198 Q				77.651		2234
	+18 35 12.366	-08 17 39.3566	-0.5982 mas	1.034 mas	23.706533	-0.198086		18	G23.707-0.198 R				78.09		2144
	+18 35 12.366	-08 17 39.3576	0 mas	0 mas	23.706533	-0.198086		19	G23.707-0.198 S				79.145		6059
	+18 35 12.3648	-08 17 39.3715	-17.3246 mas	-13.908 mas	23.706527	-0.198084		20	G23.707-0.198 T				79.496		117
	+18 35 12.365	-08 17 39.372	-14.3234 mas	-14.379 mas	23.706528	-0.198084		21	G23.707-0.198 U				80.112		202
	+18 35 12.3657	-08 17 39.3656	-4.2421 mas	-8.03 mas	23.706531	-0.198086		22	G23.707-0.198 V				80.903		142
	+18 35 12.3657	-08 17 39.3662	-3.92 mas	-8.628 mas	23.706530	-0.198086		23	G23.707-0.198 W				81.078		159
8	+18 35 22.2147	-08 01 22.4698			23.966137	-0.109253	G23.966-0.110		G23.966-0.109	Image		6.6 GHz (II)	70.9	4.2	5.47	MERLIN	10.000	5 x 15	-45	+H₂O +CH₃OH I +CH₃OH II +OH	MIXED		2006 Feb 22
	+18 35 22.2161	-08 01 22.4918	21.9498 mas	-23.005 mas	23.966134	-0.109261		1	G23.966-0.109 A				67.428		387
	+18 35 22.2162	-08 01 22.4918	23.3 mas	-22.96 mas	23.966134	-0.109261		2	G23.966-0.109 B				68.219		431
	+18 35 22.2146	-08 01 22.4688	0 mas	0 mas	23.966137	-0.109252		3	G23.966-0.109 C				70.942		5487
9	+18 35 20.9427	-07 48 55.6745			24.147889	-0.00912	G24.149-0.009		G24.148-0.009	Image		6.6 GHz (II)	17.8	1.4	3.6	MERLIN	10.000	5 x 15	-11	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2006 Feb 22
	+18 35 20.9429	-07 48 55.6957	4.3548 mas	-21.719 mas	24.147884	-0.009124		1	G24.148-0.009 A				17.441		1048
	+18 35 20.9427	-07 48 55.6741	0.198 mas	-0.097 mas	24.147889	-0.009120		2	G24.148-0.009 B				17.529		2459
	+18 35 20.9426	-07 48 55.674	0 mas	0 mas	24.147889	-0.009120		3	G24.148-0.009 C				17.792		3648
	+18 35 20.9427	-07 48 55.668	0.6149 mas	5.986 mas	24.147891	-0.009120		4	G24.148-0.009 D				18.407		240
10	+18 34 55.7215	-07 19 6.6504			24.541101	0.312125	G24.535+0.322		G24.541+0.312	Image		6.6 GHz (II)	105.7	6.8	7.75	MERLIN	4.000	6 x 16	78	+H₂O +CH₃OH I +CH₃OH II +OH	MIXED		2004 Nov 11
	+18 34 55.7191	-07 19 6.59082	-35.7935 mas	59.582 mas	24.541111	0.312141		1	G24.541+0.312 A				103.754		233
	+18 34 55.7215	-07 19 6.6504	0 mas	0 mas	24.541101	0.312125		2	G24.541+0.312 B				105.688		7753
	+18 34 55.7189	-07 19 6.61304	-38.6463 mas	37.36 mas	24.541105	0.312139		3	G24.541+0.312 C				106.215		316
	+18 34 55.7208	-07 19 6.64259	-10.8681 mas	7.809 mas	24.541101	0.312129		4	G24.541+0.312 D				107.973		238
	+18 34 55.7211	-07 19 6.64743	-5.5553 mas	2.968 mas	24.541101	0.312127		5	G24.541+0.312 E				106.479		2788
	+18 34 55.7215	-07 19 6.6494	0.0253 mas	1.001 mas	24.541101	0.312125		6	G24.541+0.312 F				107.27		2700
	+18 34 55.7214	-07 19 6.64791	-1.884 mas	2.495 mas	24.541101	0.312126		7	G24.541+0.312 G				107.533		2005
	+18 34 55.7278	-07 19 6.63607	94.8606 mas	14.327 mas	24.541116	0.312103		8	G24.541+0.312 H				108.324		106
	+18 34 55.7198	-07 19 6.63691	-26.049 mas	13.489 mas	24.541101	0.312133		9	G24.541+0.312 I				108.588		638
	+18 34 55.7189	-07 19 6.63403	-39.7491 mas	16.369 mas	24.541100	0.312137		10	G24.541+0.312 J				109.467		339
	+18 34 55.7189	-07 19 6.63346	-39.9396 mas	16.944 mas	24.541100	0.312137		11	G24.541+0.312 K				109.643		407
	+18 34 55.7188	-07 19 6.63232	-41.4218 mas	18.081 mas	24.541100	0.312137		12	G24.541+0.312 L				110.082		728
11	+18 37 22.7127	-07 31 42.1439			24.634009	-0.323688	G24.634-0.324		G24.634-0.324	Image		6.6 GHz (II)	35.4	13.4	3.03	MERLIN	4.000	6 x 12	-60	-H₂O -CH₃OH I +CH₃OH II +OH	SFR		2007 Jun 13
	+18 37 22.7114	-07 31 42.1174	-18.6698 mas	25.437 mas	24.634013	-0.323680		1	G24.634-0.324 A				34.725		457
	+18 37 22.7126	-07 31 42.1428	0 mas	0 mas	24.634009	-0.323688		2	G24.634-0.324 B				35.428		3027
	+18 37 22.7085	-07 31 42.1063	-62.2684 mas	36.486 mas	24.634010	-0.323668		3	G24.634-0.324 C				43.862		2370
	+18 37 22.7098	-07 31 42.0971	-41.9147 mas	45.715 mas	24.634015	-0.323672		4	G24.634-0.324 D				45.795		257
	+18 37 22.7097	-07 31 42.0977	-43.8591 mas	45.123 mas	24.634014	-0.323671		5	G24.634-0.324 E				46.322		312
	+18 37 22.7098	-07 31 42.0974	-42.4775 mas	45.423 mas	24.634015	-0.323672		6	G24.634-0.324 F				47.904		136
12	+18 37 16.9211	-06 38 30.5017			25.410557	0.104742	G25.411+0.105		G25.411+0.105	Image	Descr	6.6 GHz (II)	97.3	5.2	3.43	MERLIN	4.000	6 x 12	79	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2007 Jun 13
	+18 37 16.9232	-06 38 30.3903	34.1096 mas	111.279 mas	25.410589	0.104748		1	G25.411+0.105 A				93.765		142
	+18 37 16.9282	-06 38 30.521	109.096 mas	-19.44 mas	25.410566	0.104713		2	G25.411+0.105 B				94.117		82
	+18 37 16.9287	-06 38 30.4004	115.861 mas	101.194 mas	25.410597	0.104727		3	G25.411+0.105 C				94.82		847
	+18 37 16.9198	-06 38 30.4152	-16.7363 mas	86.398 mas	25.410576	0.104758		4	G25.411+0.105 D				94.644		2374
	+18 37 16.9207	-06 38 30.5223	-3.5683 mas	-20.665 mas	25.410551	0.104741		5	G25.411+0.105 E				94.82		1025
	+18 37 16.9207	-06 38 30.3778	-3.5146 mas	123.805 mas	25.410587	0.104759		6	G25.411+0.105 F				96.928		323
	+18 37 16.9212	-06 38 30.5071	3.2029 mas	-5.484 mas	25.410556	0.104741		7	G25.411+0.105 G				96.928		2251
	+18 37 16.9179	-06 38 30.4849	-46.648 mas	16.705 mas	25.410555	0.104756		8	G25.411+0.105 H				97.104		2468
	+18 37 16.921	-06 38 30.5016	0 mas	0 mas	25.410557	0.104742		9	G25.411+0.105 I				97.28		3433
	+18 37 16.9327	-06 38 30.4516	176.236 mas	50.01 mas	25.410592	0.104706		10	G25.411+0.105 J				98.861		139
13	+18 39 55.9257	-05 38 44.6424			26.597807	-0.023675	G26.597-0.024		G26.598-0.024	Image	Descr	6.6 GHz (II)	24.2	3.3	3.04	MERLIN	4.000	6 x 12	-76	+H₂O -CH₃OH I +CH₃OH II	SFR		2007 Jun 13
	+18 39 55.9259	-05 38 44.6425	2.1488 mas	-0.113 mas	26.597808	-0.023676		1	G26.598-0.024 A				22.952		182
	+18 39 55.9258	-05 38 44.6424	0 mas	0 mas	26.597807	-0.023675		2	G26.598-0.024 B				24.182		3043
	+18 39 55.9314	-05 38 44.812	84.5157 mas	-169.57 mas	26.597776	-0.023717		3	G26.598-0.024 C				24.709		1368
	+18 39 55.9481	-05 38 44.7735	335.495 mas	-131.128 mas	26.597818	-0.023774		4	G26.598-0.024 D				25.061		714
	+18 39 55.931	-05 38 44.8021	78.8583 mas	-159.738 mas	26.597778	-0.023715		5	G26.598-0.024 E				25.588		76
	+18 39 55.9484	-05 38 44.7672	338.887 mas	-124.804 mas	26.597820	-0.023774		6	G26.598-0.024 F				25.939		97
14	+18 40 30.5461	-05 01 5.3947			27.221457	0.136115	G27.221+0.136		G27.221+0.136	Image		6.6 GHz (II)	118.8	16.1	12.54	MERLIN	4.000	6 x 16	6	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2004 Nov 11
	+18 40 30.5452	-05 01 5.31614	-11.657 mas	77.859 mas	27.221475	0.136128		1	G27.221+0.136 A				105.424		253
	+18 40 30.5459	-05 01 5.31616	-1 mas	77.836 mas	27.221476	0.136125		2	G27.221+0.136 B				106.391		94
	+18 40 30.5438	-05 01 5.33851	-33.2614 mas	55.488 mas	27.221467	0.136130		3	G27.221+0.136 C				107.182		245
	+18 40 30.5437	-05 01 5.36104	-33.8577 mas	32.964 mas	27.221461	0.136127		4	G27.221+0.136 D				109.731		1239
	+18 40 30.5437	-05 01 5.35978	-34.2955 mas	34.219 mas	27.221461	0.136128		5	G27.221+0.136 E				110.258		1182
	+18 40 30.5438	-05 01 5.35881	-33.0149 mas	35.186 mas	27.221462	0.136128		6	G27.221+0.136 F				111.225		467
	+18 40 30.5447	-05 01 5.36693	-19.4363 mas	27.068 mas	27.221461	0.136123		7	G27.221+0.136 G				112.28		563
	+18 40 30.5448	-05 01 5.36689	-18.6697 mas	27.114 mas	27.221462	0.136123		8	G27.221+0.136 H				112.719		906
	+18 40 30.5447	-05 01 5.36613	-20.17 mas	27.87 mas	27.221462	0.136123		9	G27.221+0.136 I				114.828		166
	+18 40 30.5448	-05 01 5.37083	-18.4171 mas	23.167 mas	27.221461	0.136122		10	G27.221+0.136 J				115.268		150
	+18 40 30.5447	-05 01 5.36957	-19.0119 mas	24.434 mas	27.221461	0.136123		11	G27.221+0.136 K				115.444		158
	+18 40 30.5444	-05 01 5.34683	-24.1941 mas	47.165 mas	27.221466	0.136127		12	G27.221+0.136 L				115.707		236
	+18 40 30.5443	-05 01 5.38614	-24.7798 mas	7.858 mas	27.221456	0.136122		13	G27.221+0.136 M				116.586		437
	+18 40 30.5425	-05 01 5.38538	-53.1908 mas	8.62 mas	27.221453	0.136129		14	G27.221+0.136 N				117.114		6519
	+18 40 30.5466	-05 01 5.40614	8.9344 mas	-12.143 mas	27.221455	0.136111		15	G27.221+0.136 O				117.729		448
	+18 40 30.5424	-05 01 5.38633	-54.3145 mas	7.667 mas	27.221452	0.136129		16	G27.221+0.136 P				117.817		5642
	+18 40 30.5454	-05 01 5.40549	-9.3558 mas	-11.49 mas	27.221453	0.136116		17	G27.221+0.136 Q				118.168		1991
	+18 40 30.5423	-05 01 5.38697	-55.3082 mas	7.03 mas	27.221452	0.136129		18	G27.221+0.136 R				118.432		4831
	+18 40 30.546	-05 01 5.394	0 mas	0 mas	27.221457	0.136115		19	G27.221+0.136 S				118.783		12535
	+18 40 30.5454	-05 01 5.38082	-8.6878 mas	13.175 mas	27.221459	0.136119		20	G27.221+0.136 T				118.959		765
	+18 40 30.5413	-05 01 5.40084	-70.7368 mas	-6.845 mas	27.221447	0.136131		21	G27.221+0.136 U				119.223		209
	+18 40 30.5454	-05 01 5.39975	-9.2317 mas	-5.749 mas	27.221455	0.136116		22	G27.221+0.136 V				119.311		232
	+18 40 30.5437	-05 01 5.38908	-34.3642 mas	4.924 mas	27.221454	0.136124		23	G27.221+0.136 W				119.311		135
	+18 40 30.5454	-05 01 5.38265	-9.4066 mas	11.347 mas	27.221459	0.136119		24	G27.221+0.136 X				119.75		101
	+18 40 30.545	-05 01 5.41248	-15.4465 mas	-18.478 mas	27.221451	0.136116		25	G27.221+0.136 Y				120.365		536
	+18 40 30.5447	-05 01 5.35213	-20.1998 mas	41.867 mas	27.221465	0.136125		26	G27.221+0.136 Z				120.19		1339
	+18 40 30.5448	-05 01 5.34995	-17.4294 mas	44.051 mas	27.221466	0.136125		27	G27.221+0.136 A1				121.069		218
15	+18 42 37.348	-03 29 40.9216			28.817175	0.364747	G28.817+0.365		G28.817+0.365	Image		6.6 GHz (II)	90.7	5.2	3.14	MERLIN	4.000	6 x 11	45	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2007 Jun 14
	+18 42 37.3432	-03 29 40.9761	-73.2105 mas	-56.06 mas	28.817152	0.364757		1	G28.817+0.365 A				87.735		325
	+18 42 37.3438	-03 29 40.993	-63.9892 mas	-72.958 mas	28.817149	0.364753		2	G28.817+0.365 B				88.087		183
	+18 42 37.3481	-03 29 40.92	0 mas	0 mas	28.817175	0.364746		3	G28.817+0.365 C				90.723		3137
	+18 42 37.3483	-03 29 40.9026	2.8641 mas	17.423 mas	28.817180	0.364748		4	G28.817+0.365 D				91.074		1440
	+18 42 37.3483	-03 29 40.9164	2.7787 mas	3.579 mas	28.817177	0.364746		5	G28.817+0.365 E				91.25		896
	+18 42 37.3483	-03 29 40.8999	4.0115 mas	20.09 mas	28.817181	0.364748		6	G28.817+0.365 F				91.601		2511
	+18 42 37.3479	-03 29 40.9096	-3.1337 mas	10.38 mas	28.817178	0.364748		7	G28.817+0.365 G				92.129		743
	+18 42 37.3479	-03 29 40.8932	-2.7143 mas	26.783 mas	28.817182	0.364750		8	G28.817+0.365 H				92.656		2116
16	+18 46 25.0262	-02 17 40.7539			30.317492	0.070087	G30.317+0.070		G30.318+0.070	Image		6.6 GHz (II)	36.1	1.9	0.52	MERLIN	4.000	6 x 11	-50	+H₂O +CH₃OH II	MIXED		2007 Jun 14
	+18 46 25.0247	-02 17 40.7318	-23.8385 mas	22.639 mas	30.317494	0.070096		1	G30.318+0.070 A				35.192		300
	+18 46 25.0262	-02 17 40.7544	0 mas	0 mas	30.317492	0.070087		2	G30.318+0.070 B				36.07		514
	+18 46 25.0266	-02 17 40.7594	5.677 mas	-5.042 mas	30.317491	0.070085		3	G30.318+0.070 C				36.949		144
17	+18 47 52.2998	-02 23 16.0539			30.400399	-0.295719	G30.400-0.296		G30.400-0.296	Image		6.6 GHz (II)	98.5	6.7	2.77	MERLIN	4.000	6 x 11	47	+H₂O +CH₃OH I +CH₃OH II	SFR		2007 Jun 14
	+18 47 52.3001	-02 23 16.0666	4.4898 mas	-11.825 mas	30.400396	-0.295722		1	G30.400-0.296 A				98.104		2139
	+18 47 52.2998	-02 23 16.0548	0 mas	0 mas	30.400399	-0.295720		2	G30.400-0.296 B				98.455		2765
	+18 47 52.2978	-02 23 16.1	-31.0281 mas	-45.218 mas	30.400384	-0.295718		3	G30.400-0.296 C				100.388		1581
	+18 47 52.298	-02 23 15.969	-27.7091 mas	85.796 mas	30.400417	-0.295702		4	G30.400-0.296 D				101.618		331
	+18 47 52.2986	-02 23 15.9686	-19.1733 mas	86.203 mas	30.400418	-0.295704		5	G30.400-0.296 E				103.727		1914
	+18 47 52.3043	-02 23 15.92	67.4799 mas	134.779 mas	30.400441	-0.295719		6	G30.400-0.296 F				103.727		497
	+18 47 52.3043	-02 23 15.9195	66.42 mas	135.286 mas	30.400441	-0.295719		7	G30.400-0.296 G				104.43		260
18	+18 46 43.8551	-01 30 54.1551			31.046974	0.356103	G31.047+0.356		G31.047+0.356	Image		6.6 GHz (II)	80.7	6.3	1.99	MERLIN	4.000	6 x 11	72	+H₂O -CH₃OH I +CH₃OH II	SFR		2007 Jun 14
	+18 46 43.851	-01 30 54.1834	-59.6159 mas	-28.599 mas	31.046959	0.356114		1	G31.047+0.356 A				81.058		277
	+18 46 43.8549	-01 30 54.147	-0.9674 mas	7.785 mas	31.046976	0.356104		2	G31.047+0.356 B				78.07		281
	+18 46 43.8549	-01 30 54.1515	-1.2973 mas	3.292 mas	31.046975	0.356104		3	G31.047+0.356 C				79.125		1169
	+18 46 43.855	-01 30 54.1533	0.4664 mas	1.532 mas	31.046975	0.356103		4	G31.047+0.356 D				80.179		544
	+18 46 43.855	-01 30 54.1548	0 mas	0 mas	31.046974	0.356103		5	G31.047+0.356 E				80.882		1989
	+18 46 43.8549	-01 30 54.1563	-0.3989 mas	-1.525 mas	31.046974	0.356103		6	G31.047+0.356 F				81.058		1563
	+18 46 43.8518	-01 30 54.1618	-47.8577 mas	-6.974 mas	31.046966	0.356114		7	G31.047+0.356 G				82.991		617
	+18 46 43.8532	-01 30 54.1451	-25.8591 mas	9.653 mas	31.046973	0.356111		8	G31.047+0.356 H				84.045		101
19	+18 48 2.347	-01 33 35.095			31.156355	0.044784	G31.159+0.046		G31.156+0.045			6.6 GHz (II)				MERLIN	4.000	6 x 11		+H₂O -CH₃OH I +CH₃OH II +OH	MIXED		2007 Jun 14
20	+18 48 41.9411	-01 10 2.5281			31.580767	0.076993	G31.581+0.077		G31.581+0.077	Image		6.6 GHz (II)	95.6	4.8	2.72	MERLIN	4.000	6 x 11	79	+H₂O +CH₃OH I +CH₃OH II	SFR		2007 Jun 14
	+18 48 41.9412	-01 10 2.5284	0 mas	0 mas	31.580767	0.076992		1	G31.581+0.077 A				95.643		2722
	+18 48 41.9371	-01 10 2.47079	-60.9387 mas	57.608 mas	31.580774	0.077015		2	G31.581+0.077 B				97.752		349
	+18 48 41.9437	-01 10 2.53545	37.3458 mas	-7.048 mas	31.580770	0.076982		3	G31.581+0.077 C				98.104		809
	+18 48 41.9434	-01 10 2.53216	32.2616 mas	-3.757 mas	31.580771	0.076984		4	G31.581+0.077 D				98.455		376
	+18 48 41.9512	-01 10 2.43437	149.707 mas	94.026 mas	31.580810	0.076967		5	G31.581+0.077 E				98.631		493
	+18 48 41.9371	-01 10 2.44848	-61.9691 mas	79.916 mas	31.580779	0.077018		6	G31.581+0.077 F				98.806		292
	+18 48 41.9512	-01 10 2.43519	149.877 mas	93.215 mas	31.580809	0.076967		7	G31.581+0.077 G				98.806		2045
	+18 48 41.9517	-01 10 2.45898	158.133 mas	69.415 mas	31.580805	0.076962		8	G31.581+0.077 H				99.509		358
	+18 48 41.9513	-01 10 2.47189	151.679 mas	56.509 mas	31.580801	0.076962		9	G31.581+0.077 I				99.685		1099
21	+18 51 25.5829	+00 04 8.333			32.991995	0.034023	G32.993+0.038		G32.992+0.034	Image		6.6 GHz (II)	91.8	5.2	6.21	MERLIN	6.000	6 x 13	-80	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2007 Jun 15
	+18 51 25.5837	+00 04 8.28702	13.3545 mas	-44.581 mas	32.991985	0.034014		1	G32.992+0.034 A				89.724		321
	+18 51 25.5794	+00 04 8.38147	-51.5775 mas	49.869 mas	32.992000	0.034042		2	G32.992+0.034 B				90.339		396
	+18 51 25.5838	+00 04 8.29712	14.7555 mas	-34.481 mas	32.991988	0.034015		3	G32.992+0.034 C				90.602		1967
	+18 51 25.5846	+00 04 8.33276	26.796 mas	1.16 mas	32.991998	0.034016		4	G32.992+0.034 D				90.954		4650
	+18 51 25.5825	+00 04 8.32558	-4.737 mas	-6.021 mas	32.991992	0.034023		5	G32.992+0.034 E				91.393		493
	+18 51 25.5847	+00 04 8.33258	28.3665 mas	0.976 mas	32.991998	0.034016		6	G32.992+0.034 F				91.481		1856
	+18 51 25.5817	+00 04 8.36958	-16.1355 mas	37.982 mas	32.992002	0.034032		7	G32.992+0.034 G				91.656		465
	+18 51 25.5828	+00 04 8.3316	0 mas	0 mas	32.991994	0.034023		8	G32.992+0.034 H				91.832		6212
	+18 51 25.5851	+00 04 8.31664	34.734 mas	-14.963 mas	32.991995	0.034012		9	G32.992+0.034 I				92.184		394
	+18 51 25.5852	+00 04 8.31687	35.5635 mas	-14.732 mas	32.991995	0.034012		10	G32.992+0.034 J				92.447		163
	+18 51 25.5845	+00 04 8.31192	24.999 mas	-19.675 mas	32.991993	0.034014		11	G32.992+0.034 K				92.711		199
	+18 51 25.5862	+00 04 8.33	51.0915 mas	-1.604 mas	32.992001	0.034010		12	G32.992+0.034 L				94.204		600
	+18 51 25.5861	+00 04 8.32704	49.89 mas	-4.559 mas	32.992000	0.034010		13	G32.992+0.034 M				94.731		445
22	+18 53 32.563	+00 31 39.18			33.641373	-0.227733	G33.641-0.228		G33.641-0.228	Image		6.6 GHz (II)	58.8	5.3	28.3	MERLIN	10.000	6 x 16	66	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Jun 08
	+18 53 32.563	+00 31 39.18	0 mas	0 mas	33.641373	-0.227733		1	G33.641-0.228 A				58.84		28300
	+18 53 32.5623	+00 31 39.1677	-9.5996 mas	-12.3 mas	33.641368	-0.227732		2	G33.641-0.228 B				59.54		4105
	+18 53 32.562	+00 31 39.1599	-14.3994 mas	-20.1 mas	33.641366	-0.227732		3	G33.641-0.228 C				59.8		12260
	+18 53 32.5676	+00 31 39.1641	69.597 mas	-15.9 mas	33.641378	-0.227752		4	G33.641-0.228 D				60.33		20402
	+18 53 32.5671	+00 31 39.1541	61.9473 mas	-25.9 mas	33.641374	-0.227752		5	G33.641-0.228 E				60.42		2280
	+18 53 32.567	+00 31 39.153	60.8973 mas	-27 mas	33.641374	-0.227752		6	G33.641-0.228 F				60.51		1621
	+18 53 32.5638	+00 31 39.1514	13.3494 mas	-28.6 mas	33.641367	-0.227740		7	G33.641-0.228 G				60.86		1672
	+18 53 32.5673	+00 31 39.1654	65.3971 mas	-14.6 mas	33.641377	-0.227751		8	G33.641-0.228 H				60.94		10447
	+18 53 32.568	+00 31 39.1777	76.3467 mas	-2.3 mas	33.641382	-0.227752		9	G33.641-0.228 I				61.12		356
	+18 53 32.5667	+00 31 39.163	56.2475 mas	-17 mas	33.641376	-0.227749		10	G33.641-0.228 J				61.3		207
	+18 53 32.5715	+00 31 39.2359	128.394 mas	55.9 mas	33.641403	-0.227758		11	G33.641-0.228 K				61.3		176
	+18 53 32.5684	+00 31 39.1876	82.1964 mas	7.6 mas	33.641385	-0.227753		12	G33.641-0.228 L				61.82		365
	+18 53 32.5711	+00 31 39.2435	122.545 mas	63.5 mas	33.641404	-0.227756		13	G33.641-0.228 M				62.26		893
	+18 53 32.5704	+00 31 39.23	111.295 mas	50 mas	33.641399	-0.227754		14	G33.641-0.228 N				62.18		109
	+18 53 32.5658	+00 31 39.1618	42.5981 mas	-18.2 mas	33.641374	-0.227746		15	G33.641-0.228 O				62.44		5440
	+18 53 32.5658	+00 31 39.1622	42.5981 mas	-17.8 mas	33.641374	-0.227746		16	G33.641-0.228 P				62.7		20690
	+18 53 32.5658	+00 31 39.1634	42.5981 mas	-16.6 mas	33.641374	-0.227746		17	G33.641-0.228 Q				62.97		9325
	+18 53 32.565	+00 31 39.1603	30.4487 mas	-19.7 mas	33.641372	-0.227743		18	G33.641-0.228 R				63.14		1090
23	+18 53 25.0183	+00 55 25.976			33.979756	-0.019013	G33.980-0.019		G33.980-0.019	Image		6.6 GHz (II)	58.9	6.9	3.78	MERLIN	6.000	6 x 13	82	+H₂O +CH₃OH II	SFR		2007 Jun 15
	+18 53 25.0183	+00 55 25.9752	0 mas	0 mas	33.979756	-0.019013		1	G33.980-0.019 A				58.886		3782
	+18 53 25.0187	+00 55 25.9753	5.1225 mas	0.113 mas	33.979757	-0.019014		2	G33.980-0.019 B				59.501		434
	+18 53 25.015	+00 55 25.9512	-50.199 mas	-23.965 mas	33.979744	-0.019003		3	G33.980-0.019 C				60.292		315
	+18 53 25.0163	+00 55 25.977	-29.6685 mas	1.776 mas	33.979753	-0.019005		4	G33.980-0.019 D				60.555		254
	+18 53 25.015	+00 55 25.9583	-49.1925 mas	-16.883 mas	33.979746	-0.019003		5	G33.980-0.019 E				61.258		784
	+18 53 25.0203	+00 55 25.9696	30.1755 mas	-5.585 mas	33.979759	-0.019021		6	G33.980-0.019 F				61.609		515
	+18 53 25.0204	+00 55 25.9719	30.5595 mas	-3.298 mas	33.979759	-0.019021		7	G33.980-0.019 G				62.312		276
	+18 53 25.0194	+00 55 25.9473	16.2345 mas	-27.914 mas	33.979751	-0.019020		8	G33.980-0.019 H				64.157		497
	+18 53 25.0162	+00 55 25.9343	-32.445 mas	-40.911 mas	33.979742	-0.019010		9	G33.980-0.019 I				65.387		236
24	+18 55 5.22296	+01 34 36.2612			34.751139	-0.092701	G34.751-0.093		G34.751-0.093	Image		6.6 GHz (II)	52.7	3.1	1.95	MERLIN	6.000	6 x 13	-56	+H₂O -CH₃OH I +CH₃OH II	SFR		2007 Jun 15
	+18 55 5.2248	+01 34 36.2325	28.8631 mas	-27.874 mas	34.751135	-0.092712		1	G34.751-0.093 A				50.627		224
	+18 55 5.22216	+01 34 36.2568	-10.8418 mas	-3.567 mas	34.751136	-0.092699		2	G34.751-0.093 B				51.769		718
	+18 55 5.22288	+01 34 36.2604	0 mas	0 mas	34.751138	-0.092701		3	G34.751-0.093 C				52.736		1954
	+18 55 5.22264	+01 34 36.2595	-3.598 mas	-0.942 mas	34.751138	-0.092700		4	G34.751-0.093 D				53.175		1763
25	+18 57 16.894	+02 27 57.91			35.792692	-0.1747	G35.793-0.175		G35.793-0.175	Image		6.6 GHz (II)	60.7	2.8	9.7	MERLIN	10.000	6 x 16	65	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2003 Jun 08
	+18 57 16.8939	+02 27 57.9087	-2.4 mas	-0.86 mas	35.792692	-0.174700		1	G35.793-0.175 A				60.06		889
	+18 57 16.8941	+02 27 57.9096	0 mas	0 mas	35.792692	-0.174701		2	G35.793-0.175 B				60.68		9702
	+18 57 16.8942	+02 27 57.9104	1.95 mas	0.81 mas	35.792693	-0.174701		3	G35.793-0.175 C				61.3		6338
	+18 57 16.8943	+02 27 57.9108	3 mas	1.21 mas	35.792693	-0.174701		4	G35.793-0.175 D				61.82		5960
	+18 57 16.8944	+02 27 57.9118	4.35 mas	2.21 mas	35.792693	-0.174701		5	G35.793-0.175 E				62.35		1225
26	+18 55 16.7934	+03 05 5.414			36.115159	0.552417	G36.115+0.553		G36.115+0.552	Image	Descr	6.6 GHz (II)	73	14.8	11.74	MERLIN	10.000	6 x 16	-79	+CH₃OH II			2003 Jun 08
	+18 55 16.7221	+03 05 5.83497	-1072.03 mas	421.772 mas	36.115128	0.552735		1	G36.115+0.552 A				70.395		10779
	+18 55 16.7218	+03 05 5.84465	-1075.75 mas	431.452 mas	36.115130	0.552737		2	G36.115+0.552 B				70.834		254
	+18 55 16.7932	+03 05 5.41409	-5.1454 mas	0.89 mas	36.115159	0.552418		3	G36.115+0.552 C				71.186		1066
	+18 55 16.7223	+03 05 5.83324	-1068.05 mas	420.042 mas	36.115128	0.552734		4	G36.115+0.552 D				71.449		617
	+18 55 16.7227	+03 05 5.83387	-1062.54 mas	420.666 mas	36.115129	0.552733		5	G36.115+0.552 E				71.801		2921
	+18 55 16.7919	+03 05 5.40069	-24.9857 mas	-12.508 mas	36.115153	0.552422		6	G36.115+0.552 F				71.977		1386
	+18 55 16.7226	+03 05 5.83505	-1064.17 mas	421.846 mas	36.115129	0.552733		7	G36.115+0.552 G				72.416		2973
	+18 55 16.7156	+03 05 5.71408	-1168.8 mas	300.885 mas	36.115085	0.552744		8	G36.115+0.552 H				72.504		506
	+18 55 16.7226	+03 05 5.83428	-1063.77 mas	421.085 mas	36.115128	0.552733		9	G36.115+0.552 I				72.855		11194
	+18 55 16.7935	+03 05 5.4132	0 mas	0 mas	36.115159	0.552417		10	G36.115+0.552 J				73.031		11744
	+18 55 16.7909	+03 05 5.38585	-39.348 mas	-27.345 mas	36.115147	0.552423		11	G36.115+0.552 K				73.119		1431
	+18 55 16.716	+03 05 5.56911	-1163.35 mas	155.908 mas	36.115050	0.552724		12	G36.115+0.552 L				73.821		1134
	+18 55 16.7903	+03 05 5.36982	-48.5034 mas	-43.381 mas	36.115142	0.552423		13	G36.115+0.552 M				74.173		2845
	+18 55 16.7906	+03 05 5.36779	-43.6441 mas	-45.411 mas	36.115142	0.552422		14	G36.115+0.552 N				74.436		6641
	+18 55 16.7929	+03 05 5.42612	-9.8909 mas	12.919 mas	36.115161	0.552421		15	G36.115+0.552 O				75.139		371
	+18 55 16.7904	+03 05 5.36656	-46.4093 mas	-46.64 mas	36.115142	0.552423		16	G36.115+0.552 P				75.579		316
	+18 55 16.794	+03 05 5.42793	7.3175 mas	14.734 mas	36.115164	0.552417		17	G36.115+0.552 Q				75.754		431
	+18 55 16.7935	+03 05 5.42943	0.1992 mas	16.226 mas	36.115163	0.552419		18	G36.115+0.552 R				76.106		3900
	+18 55 16.7187	+03 05 5.83395	-1122.95 mas	420.746 mas	36.115121	0.552747		19	G36.115+0.552 S				81.289		1619
	+18 55 16.7202	+03 05 5.85018	-1100.47 mas	436.982 mas	36.115128	0.552744		20	G36.115+0.552 T				81.553		447
	+18 55 16.72	+03 05 5.85151	-1103.12 mas	438.308 mas	36.115128	0.552745		21	G36.115+0.552 U				81.816		513
	+18 55 16.7191	+03 05 5.82024	-1116.33 mas	407.041 mas	36.115118	0.552744		22	G36.115+0.552 V				81.904		1010
	+18 55 16.7193	+03 05 5.83337	-1113.55 mas	420.169 mas	36.115122	0.552745		23	G36.115+0.552 W				82.168		5062
	+18 55 16.7191	+03 05 5.83086	-1116.44 mas	417.658 mas	36.115121	0.552745		24	G36.115+0.552 X				83.925		1652
27	+18 57 59.1229	+03 24 6.1124			36.70531	0.096183	G36.705+0.096		G36.705+0.096	Image		6.6 GHz (II)	53.1	10.6	7.58	MERLIN	6.000	6 x 13	-16	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2007 Jun 15
	+18 57 59.1229	+03 24 6.11395	1.3392 mas	1.153 mas	36.705310	0.096183		1	G36.705+0.096 A				52.56		348
	+18 57 59.1228	+03 24 6.1128	0 mas	0 mas	36.705310	0.096183		2	G36.705+0.096 B				53.087		7576
	+18 57 59.1227	+03 24 6.11264	-0.9167 mas	-0.156 mas	36.705310	0.096183		3	G36.705+0.096 C				53.79		2413
	+18 57 59.1227	+03 24 6.1116	-1.8934 mas	-1.201 mas	36.705309	0.096184		4	G36.705+0.096 D				54.405		4629
	+18 57 59.1227	+03 24 6.10284	-2.0102 mas	-9.961 mas	36.705307	0.096182		5	G36.705+0.096 E				54.844		1309
	+18 57 59.1227	+03 24 6.10958	-1.5579 mas	-3.225 mas	36.705309	0.096183		6	G36.705+0.096 F				55.108		420
	+18 57 59.1219	+03 24 6.16486	-14.1016 mas	52.059 mas	36.705321	0.096193		7	G36.705+0.096 G				62.137		1974
	+18 57 59.1228	+03 24 6.15841	-0.394 mas	45.608 mas	36.705321	0.096189		8	G36.705+0.096 H				63.015		153
28	+18 59 3.64233	+03 37 45.0861			37.030254	-0.038587	G37.033-0.035		G37.030-0.039	Image		6.6 GHz (II)	78.6	0.7	0.69	MERLIN	7.000	6 x 14	-15	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2006 Feb 23
	+18 59 3.64224	+03 37 45.0876	0 mas	0 mas	37.030254	-0.038587		1	G37.030-0.039 A				78.585		691
	+18 59 3.64221	+03 37 45.0878	-0.4374 mas	0.205 mas	37.030254	-0.038586		2	G37.030-0.039 B				78.761		224
29	+19 00 7.145	+03 59 53.35			37.479091	-0.104757	G37.479-0.105		G37.479-0.105			6.6 GHz (II)				MERLIN	7.000	6 x 14		+H₂O +CH₃OH I +CH₃OH II	SFR		2006 Feb 23
30	+18 58 26.7977	+04 20 45.457			37.59789	0.425102	G37.598+0.425		G37.598+0.425	Image		6.6 GHz (II)	85.8	4.5	3.91	MERLIN	7.000	6 x 14	87	+H₂O +CH₃OH I +CH₃OH II	SFR		2006 Feb 23
	+18 58 26.8038	+04 20 45.4448	91.6302 mas	-11.151 mas	37.597898	0.425078		1	G37.598+0.425 A				82.802		251
	+18 58 26.7977	+04 20 45.456	0 mas	0 mas	37.597889	0.425102		2	G37.598+0.425 B				85.789		3911
	+18 58 26.7977	+04 20 45.4551	-0.3322 mas	-0.886 mas	37.597889	0.425102		3	G37.598+0.425 C				85.438		891
	+18 58 26.7994	+04 20 45.469	26.0379 mas	12.958 mas	37.597896	0.425097		4	G37.598+0.425 D				86.931		2407
	+18 58 26.7994	+04 20 45.4692	25.4768 mas	13.177 mas	37.597896	0.425097		5	G37.598+0.425 E				87.195		465
	+18 58 26.8003	+04 20 45.4624	39.3823 mas	6.436 mas	37.597896	0.425093		6	G37.598+0.425 F				87.283		2543
	+18 58 26.8019	+04 20 45.4601	63.5139 mas	4.065 mas	37.597898	0.425087		7	G37.598+0.425 G				88.6		395
	+18 58 26.8021	+04 20 45.4485	66.2298 mas	-7.53 mas	37.597896	0.425085		8	G37.598+0.425 H				88.688		202
31	+19 01 50.4695	+04 24 18.9559			38.037531	-0.300308	G38.038-0.300		G38.038-0.3	Image		6.6 GHz (II)	55.7	4.2	2.17	MERLIN	7.000	6 x 14	10	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2006 Feb 23
	+19 01 50.4694	+04 24 18.9576	0 mas	0 mas	38.037532	-0.300307		1	G38.038-0.3 A				55.656		2168
	+19 01 50.4698	+04 24 18.9421	6.2921 mas	-15.547 mas	38.037529	-0.300311		2	G38.038-0.3 B				57.062		507
	+19 01 50.47	+04 24 18.9412	9.3731 mas	-16.4 mas	38.037529	-0.300312		3	G38.038-0.3 C				57.413		1046
	+19 01 50.4703	+04 24 18.9558	13.9385 mas	-1.814 mas	38.037533	-0.300311		4	G38.038-0.3 D				58.204		1434
	+19 01 50.4707	+04 24 18.9425	20.8441 mas	-15.061 mas	38.037531	-0.300314		5	G38.038-0.3 E				59.522		215
	+19 01 50.4707	+04 24 18.9704	19.9328 mas	12.8 mas	38.037537	-0.300311		6	G38.038-0.3 F				59.522		224
	+19 01 50.4706	+04 24 18.9537	19.0545 mas	-3.888 mas	38.037533	-0.300313		7	G38.038-0.3 G				59.609		281
32	+19 01 18.7323	+04 39 34.2938			38.203269	-0.066733	G38.203-0.067		G38.203-0.067	Image		6.6 GHz (II)	79.6	6	0.83	MERLIN	7.000	6 x 14	-44	+H₂O -CH₃OH I +CH₃OH II	SFR		2006 Feb 23
	+19 01 18.7322	+04 39 34.2936	0 mas	0 mas	38.203269	-0.066732		1	G38.203-0.067 A				79.64		828
	+19 01 18.7286	+04 39 34.3141	-54.8141 mas	20.519 mas	38.203267	-0.066716		2	G38.203-0.067 B				80.518		169
	+19 01 18.733	+04 39 34.3071	11.26 mas	13.497 mas	38.203274	-0.066733		3	G38.203-0.067 C				80.606		157
	+19 01 18.7255	+04 39 34.4478	-101.84 mas	154.22 mas	38.203294	-0.066688		4	G38.203-0.067 D				83.856		173
	+19 01 18.7299	+04 39 34.3235	-35.3736 mas	29.94 mas	38.203272	-0.066720		5	G38.203-0.067 E				83.944		152
	+19 01 18.7299	+04 39 34.3386	-35.2315 mas	44.965 mas	38.203275	-0.066718		6	G38.203-0.067 F				83.944		195
	+19 01 18.73	+04 39 34.3252	-33.8743 mas	31.624 mas	38.203272	-0.066720		7	G38.203-0.067 G				84.208		198
33	+19 00 58.0404	+05 42 43.9214			39.100033	0.491234	G39.100+0.491		G39.100+0.491	Image		6.6 GHz (II)	15.3	3.3	2.07	MERLIN	7.000	6 x 14	52	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2006 Feb 23
	+19 00 58.04	+05 42 43.8814	-5.7037 mas	-38.57 mas	39.100023	0.491230		1	G39.100+0.491 A				14.63		222
	+19 00 58.0399	+05 42 43.9086	-7.8346 mas	-11.431 mas	39.100029	0.491234		2	G39.100+0.491 B				14.63		453
	+19 00 58.0413	+05 42 43.8979	13.3126 mas	-22.065 mas	39.100029	0.491227		3	G39.100+0.491 C				15.772		314
	+19 00 58.0481	+05 42 44.0239	115.077 mas	103.877 mas	39.100073	0.491218		4	G39.100+0.491 D				15.86		623
	+19 00 58.0482	+05 42 43.9959	116.609 mas	75.888 mas	39.100067	0.491215		5	G39.100+0.491 E				15.86		545
	+19 00 58.0413	+05 42 43.898	13.3112 mas	-22.004 mas	39.100029	0.491228		6	G39.100+0.491 F				15.86		769
	+19 00 58.0404	+05 42 43.92	0 mas	0 mas	39.100033	0.491234		7	G39.100+0.491 G				15.245		2068
	+19 00 58.0401	+05 42 43.9142	-5.1254 mas	-5.807 mas	39.100031	0.491234		8	G39.100+0.491 H				15.684		1140
	+19 00 58.0401	+05 42 43.9129	-4.9192 mas	-7.132 mas	39.100031	0.491234		9	G39.100+0.491 I				15.948		1042
	+19 00 58.0408	+05 42 43.9118	6.663 mas	-8.18 mas	39.100032	0.491231		10	G39.100+0.491 J				17.617		696

Non-detection table from Bartkiewicz et al. (2009)