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ROD17 - A Catalog of 44 GHz Methanol Masers in Massive Star-forming Regions. IV. The High-mass Protostellar Object Sample

Interferometry data

Short title: Rodriguez-Garza et al. (2017)
Authors: Rodríguez-Garza, C. B. Kurtz, S. E. Gómez-Ruiz, A. I. Hofner, P. Araya, E. D. Kalenskii, S. V.
Journal: The Astrophysical Journal Supplement Series, Volume 233, Issue 1, article id. 4, 18 pp. (2017).
Bibcode:
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Target type: High_mass_SFR,HII
Transitions: SiO_1-0v0,CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_84(I),CH3OH_95(I),CH3OH_6(II),CH3OH_37(II),CH3OH_38(II)

Abstract
We present a survey of 56 massive star-forming regions in the 44 GHz methanol maser transition made with the Karl G. Jansky Very Large Array (VLA) 24 of the 56 fields showed maser emission. The data allow us to demonstrate associations, at arcsecond precision, of the Class I maser emission with outflows, H II regions, and shocks traced by 4.5 mum emission. We find a total of 83 maser components with line widths ranging from 0.17 to 3.3 km s^-1, with a nearly flat distribution and a median value of 1.1 km s^-1. The relative velocities of the masers with respect to the systemic velocity of the host clouds range from -2.5 to 3.1 km s^-1, with a distribution peaking near zero. We also study the correlation between the masers and the so-called extended green objects (EGOs) from the GLIMPSE survey. Multiple sources in each field are revealed from IR images as well as from centimeter continuum emission from VLA archival data in the majority of cases the 44 GHz masers are positionally correlated with EGOs, which seem to trace the younger sources in the fields. We report a possible instance of a 44 GHz maser associated with a low-mass protostar. If confirmed, this region will be the fifth known star-forming region that hosts Class I masers associated with low-mass protostars. We discuss three plausible cases of maser variability. eprintid: arXiv:1709.09773	Comments: 56 massive star-forming regions

Abstract

We present a survey of 56 massive star-forming regions in the 44 GHz methanol maser transition made with the Karl G. Jansky Very Large Array (VLA) 24 of the 56 fields showed maser emission. The data allow us to demonstrate associations, at arcsecond precision, of the Class I maser emission with outflows, H II regions, and shocks traced by 4.5 mum emission. We find a total of 83 maser components with line widths ranging from 0.17 to 3.3 km s^-1, with a nearly flat distribution and a median value of 1.1 km s^-1. The relative velocities of the masers with respect to the systemic velocity of the host clouds range from -2.5 to 3.1 km s^-1, with a distribution peaking near zero. We also study the correlation between the masers and the so-called extended green objects (EGOs) from the GLIMPSE survey. Multiple sources in each field are revealed from IR images as well as from centimeter continuum emission from VLA archival data in the majority of cases the 44 GHz masers are positionally correlated with EGOs, which seem to trace the younger sources in the fields. We report a possible instance of a 44 GHz maser associated with a low-mass protostar. If confirmed, this region will be the fifth known star-forming region that hosts Class I masers associated with low-mass protostars. We discuss three plausible cases of maser variability. eprintid:

Comments:
56 massive star-forming regions

Input tables: Tables 3, 4
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Detection table from Rodriguez-Garza et al. (2017)

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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)	(mJy)	(mJy*km/s)		(mJy/beam)	(arcsec)	(deg.)	Yes/No		(kpc)
1	05 39 10.4	+35 45 19			173.484504	2.433749	G173.482+2.446		05358+3543	Image	Descr	44 GHz (I);	-16.6 .. -18.4	0.84 .. 24.72	0.2 .. 14.91	NRAOVLA	39.000	1.69 x 1.48	-57	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Aug 26
	+05 39 11.37	+35 45 8.4	14551.2 mas	-10600.8 mas	173.488745	2.434961		1	05358+3543 A				-18.4	0.84	0.2
	+05 39 13.2	+35 45 36	42001.2 mas	16999.2 mas	173.485540	2.444278		2	05358+3543 B				-18	5.01	2.65
	+05 39 13.48	+35 45 43	46201.2 mas	23999.2 mas	173.484395	2.446113		3	05358+3543 C				-16.6	24.72	14.91
2	18 11 51.3	-17 31 29			12.888651	0.489661	G12.889+0.490		18089-1732	Image	Descr	44 GHz (I);	31.5 .. 33.8	1 .. 17.7	0.06 .. 10.82	NRAOVLA	76.000	2.16 x 1.35	-4.1	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Aug 31
	+18 11 51.29	-17 31 23.8	-150 mas	5199.2 mas	12.889899	0.490390		1	18089-1732 A				31.5	17.7	10.82
	+18 11 51.39	-17 31 24.6	1350 mas	4399.2 mas	12.889895	0.489935		2	18089-1732 B				32.5	1.87
	+18 11 51.41	-17 31 22.2	1650 mas	6799.2 mas	12.890518	0.490186		3	18089-1732 C				33.8	1.52	0.37
	+18 11 51.51	-17 31 21.6	3150 mas	7399.2 mas	12.890855	0.489918		4	18089-1732 D				33.6	1.55	1.51
	+18 11 51.64	-17 31 22	5100 mas	6999.2 mas	12.891006	0.489412		5	18089-1732 E				33.1	1	0.06
	+18 11 51.7	-17 31 23.8	6000 mas	5199.2 mas	12.890682	0.488962		6	18089-1732 F				32.4	4.39	2.09
	+18 11 52.18	-17 31 21.7	13200 mas	7299.2 mas	12.892111	0.487570		7	18089-1732 G				31.8	1.2	0.22
3	18 13 12.2	-17 59 35			12.631954	-0.016795	G12.627-0.017		18102-1800	Image	Descr	44 GHz (I);	19.6 .. 22.9	2.39 .. 7.64	0.65 .. 6.4	NRAOVLA	85.000	2.27 x 1.35	2.1	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008 Aug 31
	+18 13 10.29	-18 00 3.8	-28648.8 mas	-28798.4 mas	12.621305	-0.013987		1	18102-1800 A				22.5	7.64	2.52
	+18 13 11.01	-18 00 2.4	-17848.8 mas	-27398.4 mas	12.623014	-0.016305		2	18102-1800 B				21.4	5.87	1.55
	+18 13 11.1	-18 00 1.4	-16498.8 mas	-26398.4 mas	12.623428	-0.016484		3	18102-1800 C				21.4	3.45	0.8
	+18 13 11.17	-18 00 4.2	-15448.8 mas	-29198.4 mas	12.622879	-0.017101		4	18102-1800 D				22.9	3.63	2.9
	+18 13 11.24	-18 00 3.1	-14398.8 mas	-28098.4 mas	12.623280	-0.017198		5	18102-1800 E				22	2.39	0.65
	+18 13 11.82	-18 00 1.8	-5698.8 mas	-26798.4 mas	12.624699	-0.019042		6	18102-1800 F				19.6	7.36	6.4
4	18 17 57.1	-12 07 22			18.340073	1.772196	G18.340+1.772		18151-1208	Image		44 GHz (I);	32.1 .. 33.7	1.34 .. 13.83	0.98 .. 7.08	NRAOVLA	66.000	2.05 x 1.42	1.9	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Aug 31
	+18 17 57.12	-12 07 34.7	298.8 mas	-12699.2 mas	18.337003	1.770455		1	18151-1208 A				33.2	1.34	0.98
	+18 17 58.2	-12 07 29.4	16498.8 mas	-7399.2 mas	18.340383	1.767276		2	18151-1208 B				33.7	2.94	1.12
	+18 17 58.56	-12 07 17	21898.8 mas	5000.8 mas	18.344114	1.767614		3	18151-1208 C				32.1	13.83	7.08
	+18 17 58.58	-12 07 18.8	22198.8 mas	3200.8 mas	18.343711	1.767305		4	18151-1208 D				33.6	5.71	1.91
5	18 21 7.9	-14 31 53			16.581814	-0.046933	G16.585-0.051		18182-1433	Image	Descr	44 GHz (I);	60.2 .. 61.2	1.33 .. 33.63	0.69 .. 24.85	NRAOVLA	69.000	2.18 x 1.47	2.2	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Aug 31
	+18 21 8.78	-14 31 46.7	13198.8 mas	6300.4 mas	16.585029	-0.049241		1	18182-1433 A				60.7	2.31	1.19
	+18 21 8.9	-14 31 46.8	14998.8 mas	6200.4 mas	16.585232	-0.049681		2	18182-1433 B				60.4	1.33	0.69
	+18 21 9.14	-14 31 49.7	18598.8 mas	3300.4 mas	16.584978	-0.050914		3	18182-1433 C				61.2	33.63	24.85
	+18 21 9.85	-14 31 46.7	29248.8 mas	6300.4 mas	16.587061	-0.053048		4	18182-1433 D				60.2	13.9	7.77
6	18 27 31.1	-11 45 56			19.753628	-0.126509	G19.755-0.128		18247-1147	Image		44 GHz (I);	120.7 .. 120.7	6.53 .. 6.53	2.66	NRAOVLA	43.000	2.14 x 1.47	-4.9	-H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008 Sep 07
	+18 27 31.8	-11 46 0.5	10501.2 mas	-4498.4 mas	19.753850	-0.129619		1	18247-1147 A				120.7	6.53	2.66
7	18 29 14.3	-11 50 26			19.882787	-0.534072	G19.884-0.535		18264-1152	Image	Descr	44 GHz (I);	41.1 .. 45.2	1.09 .. 19.73	0.33 .. 12.47	NRAOVLA	41.000	2.13 x 1.47	-0.1	+H₂O +CH₃OH I +CH₃OH II -OH	SFR_MIXED		2008 Sep 07
	+18 29 14.18	-11 50 27.4	-1798.8 mas	-1398.4 mas	19.882215	-0.533819		1	18264-1152 A				43.6	3.82	1.82
	+18 29 14.28	-11 50 18.9	-298.8 mas	7101.6 mas	19.884496	-0.533085		2	18264-1152 B				44.4	7.4	4.13
	+18 29 14.33	-11 50 27.4	451.2 mas	-1398.4 mas	19.882499	-0.534361		3	18264-1152 C				45.2	1.12	0.33
	+18 29 14.38	-11 50 24.8	1201.2 mas	1201.6 mas	19.883233	-0.534206		4	18264-1152 D				43.6	14.8
	+18 29 14.39	-11 50 24.7	1351.2 mas	1301.6 mas	19.883277	-0.534230		5	18264-1152 E				43.1	19.73	12.47
	+18 29 14.49	-11 50 17.4	2851.2 mas	8601.6 mas	19.885262	-0.533650		6	18264-1152 F				43.9	12.19	6.41
	+18 29 14.57	-11 50 23.8	4051.2 mas	2201.6 mas	19.883839	-0.534764		7	18264-1152 G				41.1	1.09	0.37
	+18 29 14.66	-11 50 26.4	5401.2 mas	-398.4 mas	19.883369	-0.535424		8	18264-1152 H				42.9	2.04	0.71
	+18 29 14.77	-11 50 22.3	7051.2 mas	3701.6 mas	19.884586	-0.535293		9	18264-1152 I				42.7	2.01	1.36
	+18 29 15.42	-11 50 11.1	16801.2 mas	14901.6 mas	19.888572	-0.536198		10	18264-1152 J				42.7	1.2	0.55
8	18 31 44.8	-09 22 09			22.358612	0.064309	G22.355+0.065		18290-0924	Image		44 GHz (I);	82.8 .. 85.8	1.17 .. 62.73	0.16 .. 29.41	NRAOVLA	72.000	2.08 x 1.56	-6.5	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		2008 Sep 07
	+18 31 43.18	-09 22 31.7	-24301.2 mas	-22698.8 mas	22.349942	0.067299		1	18290-0924 A				85.8	1.23	0.16
	+18 31 43.4	-09 22 22.5	-21001.2 mas	-13498.8 mas	22.352626	0.067679		2	18290-0924 B				83.9	62.73	29.41
	+18 31 44.2	-09 22 12.6	-9001.2 mas	-3598.8 mas	22.356585	0.066034		3	18290-0924 C				82.8	1.17	0.4
9	18 33 21.8	-08 33 38			23.2602	0.08365	G23.265+0.077		18306-0835	Image		44 GHz (I);	76.4 .. 79.9	2.86 .. 18.23	1.31 .. 20.1	NRAOVLA	36.000	2.13 x 1.48	14.2	+H₂O +CH₃OH I -CH₃OH II +OH	SFR_MIXED		2008 Sep 07
	+18 33 22.95	-08 33 35.3	17251.2 mas	2701.6 mas	23.263051	0.079792		1	18306-0835 A				76.4	2.86	1.31
	+18 33 23.96	-08 33 30.2	32401.2 mas	7801.6 mas	23.266228	0.076754		2	18306-0835 B				79.9	5.45	4.97
	+18 33 24.07	-08 33 34.5	34051.2 mas	3501.6 mas	23.265377	0.075800		3	18306-0835 C				77.6	18.23	20.1
10	18 33 31.9	-08 39 17			23.195845	0.003294	G23.200-0.000		18308-0841	Image		44 GHz (I);	75.8 .. 76.9	0.75 .. 14.93	0.08 .. 10.42	NRAOVLA	44.000	2.05 x 1.51	12.8	+H₂O +CH₃OH I -CH₃OH II	SFR_MIXED		2008 Sep 07
	+18 33 32.49	-08 39 8.5	8848.8 mas	8499.2 mas	23.199061	0.002227		1	18308-0841 A				76.6	0.82	0.27
	+18 33 33.08	-08 39 17.5	17698.8 mas	-500.8 mas	23.197963	-0.001083		2	18308-0841 B				76.4	0.75	0.08
	+18 33 33.21	-08 39 14.7	19648.8 mas	2299.2 mas	23.198901	-0.001199		3	18308-0841 C				76.4	14.93	10.42
	+18 33 33.16	-08 39 13.6	18898.8 mas	3399.2 mas	23.199077	-0.000876		4	18308-0841 D				75.8	6.2
	+18 33 33.24	-08 39 15.7	20098.8 mas	1299.2 mas	23.198711	-0.001437		5	18308-0841 E				76.9	6.49
11	18 33 47.2	-08 23 35			23.4571	0.068025	G23.457+0.068		18310-0825	Image		44 GHz (I);	84.2 .. 84.2	1.1 .. 1.1	0.24	NRAOVLA	45.000	1.99 x 1.52	-10.8	-H₂O +CH₃OH I +CH₃OH II	SFR		2008 Sep 08
	+18 33 47.31	-08 23 43.1	1648.8 mas	-8098.4 mas	23.455312	0.066586		1	18310-0825 A				84.2	1.1	0.24
12	18 36 29	-07 40 33			24.401112	-0.194398	G24.401-0.190		18337-0743	Image		44 GHz (I);	58.5 .. 60.7	2.45 .. 6.53	4.01	NRAOVLA	44.000	1.95 x 1.53	-12.4	-H₂O +CH₃OH I -CH₃OH II	SFR		2008 Sep 08
	+18 36 27.98	-07 40 22.7	-15298.8 mas	10298.8 mas	24.401717	-0.189342		1	18337-0743 A				60.7	6.53	4.01
	+18 36 28	-07 40 24	-14998.8 mas	8998.8 mas	24.401434	-0.189581		2	18337-0743 B				58.5	2.45
13	18 37 16.8	-06 38 32			25.409957	0.104996	G25.411+0.105		18345-0641	Image		44 GHz (I);	94.5 .. 97.2	0.45 .. 7.74	0.07 .. 6.58	NRAOVLA	41.000	1.89 x 1.54	-10.4	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Sep 08
	+18 37 16.53	-06 38 34.4	-4050 mas	-2400.8 mas	25.408852	0.105682		1	18345-0641 A				95.9	1.3	0.89
	+18 37 16.56	-06 38 25.6	-3600 mas	6399.2 mas	25.411080	0.106695		2	18345-0641 B				94.9	0.57	0.07
	+18 37 16.89	-06 38 29.7	1350 mas	2299.2 mas	25.410696	0.104959		3	18345-0641 C				95.4	7.74	6.58
	+18 37 16.94	-06 38 30.7	2100 mas	1299.2 mas	25.410544	0.104647		4	18345-0641 D				97	1.66
	+18 37 17.3	-06 38 31.5	7500 mas	499.2 mas	25.411031	0.103222		5	18345-0641 E				96.2	1.98	2.24
	+18 37 17.21	-06 38 30.5	6150 mas	1499.2 mas	25.411107	0.103680		6	18345-0641 F				94.5	0.45
	+18 37 17.33	-06 38 34.4	7950 mas	-2400.8 mas	25.410373	0.102741		7	18345-0641 G				97.2	0.66	0.18
	+18 37 17.92	-06 38 47	16800 mas	-15000.8 mas	25.408385	0.098965		8	18345-0641 H				95.7	6.39	1.44
14	18 51 24.8	+00 04 19			32.993145	0.038277	G32.993+0.038		18488+0000	Image		44 GHz (I);	83.1 .. 83.1	11.65 .. 11.65	7.97	NRAOVLA	46.000	1.76 x 1.5	18.3	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Sep 14
	+18 51 25.42	+00 04 6.1	9301.2 mas	-12898.4 mas	32.991133	0.034344		1	18488+0000 A				83.1	11.65	7.97
15	18 54 13.8	+04 41 32			37.426669	1.518233	G37.427+1.518		18517+0437	Image	Descr	44 GHz (I);	43.4 .. 44	1.09 .. 4.19	0.73 .. 2.7	NRAOVLA	48.000	1.71 x 1.52	17.6	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Sep 14
	+18 54 14.46	+04 41 44.3	9900 mas	12300.8 mas	37.430961	1.517349		1	18517+0437 A				44	1.09	0.73
	+18 54 14.74	+04 41 42.7	14100 mas	10700.8 mas	37.431095	1.516112		2	18517+0437 B				43.4	4.19	2.7
16	18 54 40.8	+01 38 02			34.755592	0.023891	G34.757+0.025		18521+0134	Image		44 GHz (I);	77.8 .. 78.1	0.36 .. 0.66	0.02 .. 0.36	NRAOVLA	45.000	1.76 x 1.52	33	-H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008 Sep 14
	+18 54 40.79	+01 38 5.5	-150 mas	3499.6 mas	34.756438	0.024372		1	18521+0134 A				77.8	0.36	0.02
	+18 54 40.9	+01 38 4.8	1500 mas	2799.6 mas	34.756474	0.023875		2	18521+0134 B				78.1	0.66	0.36
17	18 55 34.2	+02 19 08			35.466601	0.138515	G35.467+0.139		18530+0215	Image		44 GHz (I);	79.1 .. 80.1	0.94 .. 1.14	0.24 .. 1.32	NRAOVLA	46.000	1.81 x 1.55	21.7	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008 Sep 14
	+18 55 34.76	+02 19 0.5	8400 mas	-7500.4 mas	35.465811	0.135490		1	18530+0215 A				80.1	1.14	1.32
	+18 55 34.9	+02 18 58.6	10500 mas	-9400.4 mas	35.465607	0.134731		2	18530+0215 B				79.1	0.94	0.24
18	18 57 52.9	+04 18 06			37.494164	0.530169	G37.498+0.530		18553+0414	Image		44 GHz (I);	12.5 .. 12.5	1.47 .. 1.47	0.7	NRAOVLA	50.000	1.77 x 1.54	37.5	+H₂O +CH₃OH I -CH₃OH II +OH	SFR		2008 Sep 14
	+18 57 53.34	+04 18 16.9	6598.8 mas	10898.8 mas	37.497693	0.529925		1	18553+0414 A				12.5	1.47	0.7
19	18 59 9.9	+04 12 14			37.55333	0.200885	G37.554+0.201		18566+0408	Image		44 GHz (I);	83.8 .. 87	1.04 .. 3.75	0.26 .. 2.9	NRAOVLA	46.000	1.7 x 1.53	45.6	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008 Sep 14
	+18 59 9.23	+04 12 22.3	-10050 mas	8299.6 mas	37.554108	0.204415		1	18566+0408 A				86.8	1.04	0.26
	+18 59 9.3	+04 12 25.7	-9000 mas	11699.6 mas	37.555081	0.204588		2	18566+0408 B				86.3	3.75	2.9
	+18 59 9.2	+04 12 25.4	-10500 mas	11399.6 mas	37.554817	0.204920		3	18566+0408 C				86.8	1.73
	+18 59 9.97	+04 12 14.8	1050 mas	799.6 mas	37.553660	0.200728		4	18566+0408 D				83.8	1.28	0.92
	+18 59 10.17	+04 12 16.3	4050 mas	2299.6 mas	37.554411	0.200179		5	18566+0408 E				87	1.09	0.4
20	20 14 26	+41 13 32			78.122055	3.632829	G78.122+3.633		20126+4104	Image		44 GHz (I);	-2.3 .. -4.4	2.55 .. 7.87	0.53 .. 5.59	NRAOVLA	77.000	1.72 x 1.44	-67.4	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		e
	+20 14 25.17	+41 13 36.2	-12448.8 mas	4198.4 mas	78.121591	3.635642		1	20126+4104 A				-2.3	5.07	3.92
	+20 14 25.22	+41 13 35.1	-11698.8 mas	3098.4 mas	78.121423	3.635343		2	20126+4104 B				-2.3	3.88
	+20 14 25.3	+41 13 40.6	-10498.8 mas	8598.4 mas	78.122838	3.635977		3	20126+4104 C				-3.1	2.55	0.53
	+20 14 25.41	+41 13 37.9	-8848.8 mas	5898.4 mas	78.122402	3.635276		4	20126+4104 D				-3.3	7.87	5.59
	+20 14 26.71	+41 13 29.8	10651.2 mas	-2201.6 mas	78.122775	3.630637		5	20126+4104 E				-4.4	2.81	1.33
21	20 31 10.7	+40 03 10			78.975222	0.356158	G78.975+0.356		20293+3952	Image	Descr	44 GHz (I);	4.8 .. 6.9	9.58 .. 14.58	4.95 .. 8.06	NRAOVLA	42.000	1.8 x 1.43	-78.2	+H₂O +CH₃OH I -CH₃OH II +OH	SFR		2008 Sep 05
	+20 31 11.97	+40 03 12.1	19051.2 mas	2099.2 mas	78.978084	0.353233		1	20293+3952 A				6.1	9.58	4.95
	+20 31 12.8	+40 03 20.8	31501.2 mas	10799.2 mas	78.981598	0.352524		2	20293+3952 B				6.9	10.17	6.58
	+20 31 12.8	+40 03 24	31501.2 mas	13999.2 mas	78.982315	0.353049		3	20293+3952 C				4.8	14.58	8.06
22	23 05 25.7	+60 08 08			110.093468	-0.066881	G110.093-0.066		23033+5951	Image		44 GHz (I);	-52.9 .. -54.4	2.14 .. 17.81	8.3	NRAOVLA	78.000	1.74 x 1.28	-19.3	+H₂O +CH₃OH I -CH₃OH II +OH	SFR		2009 Sep 12
	+23 05 24.56	+60 08 9.4	-17098.8 mas	1398.4 mas	110.091451	-0.065585		1	23033+5951 A				-54.4	17.81	8.3
	+23 05 24.72	+60 08 9.3	-14698.8 mas	1298.4 mas	110.091745	-0.065742		2	23033+5951 B				-52.9	2.14
23	23 16 9.3	+59 55 23			111.253058	-0.770428	G111.255-0.770		23139+5939	Image		44 GHz (I);	-44.5 .. -44.5	0.91 .. 0.91	0.28	NRAOVLA	85.000	1.73 x 1.3	-17.4	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2010 Sep 12
	+23 16 10.83	+59 55 20.7	22950 mas	-2301.6 mas	111.255810	-0.772173		1	23139+5939 A				-44.5	0.91	0.28
24	23 17 21	+59 28 49			111.235583	-1.237828	G111.236-1.238		23151+5912	Image		44 GHz (I);	-52.7 .. -54.7	3.67 .. 4.02	0.84 .. 2.18	NRAOVLA	83.000	1.62 x 1.27	-19.4	+H₂O +CH₃OH I -CH₃OH II +OH	SFR		2011 Sep 12
	+23 17 21.3	+59 28 50.6	4500 mas	1599.2 mas	111.236334	-1.237638		1	23151+5912 A				-54.7	3.67	0.84
	+23 17 21.86	+59 28 45.6	12900 mas	-3400.8 mas	111.236949	-1.239357		2	23151+5912 B				-52.7	4.02	2.18

Non-detection table from Rodriguez-Garza et al. (2017)