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WAL11 - The H2O Southern Galactic Plane Survey (HOPS) - I. Techniques and H2O maser data

Short title: Walsh et al. (2011)
Authors: Walsh, A. J. Breen, S. L. Britton, T. Brooks, K. J. Burton, M. G. et al.
Journal: Monthly Notices of the Royal Astronomical Society, Volume 416, Issue 3, pp. 1764-1821.
Bibcode:
PDF:

Target type: Blind
Observations category: blind
Facility type: single-dish
Transitions: OH_1665,SiO_1-0v0,CH3OH_9(I),CH3OH_23.4(I),CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_95(I),CH3OH_132(I),CH3OH_6(II),CH3OH_23.1(II)

Abstract
We present first results of the H₂O Southern Galactic Plane Survey (HOPS), using the Mopra Radio Telescope with a broad-band backend and a beam size of about 2 arcmin. We have observed 100 deg² of the southern Galactic plane at 12 mm (19.5-27.5 GHz), including spectral line emission from H₂O masers, multiple metastable transitions of ammonia, cyanoacetylene, methanol and radio recombination lines. In this paper, we report on the characteristics of the survey and H₂O maser emission. We find 540 H₂O masers, of which 334 are new detections. The strongest maser is 3933 Jy and the weakest is 0.7 Jy, with 62 masers over 100 Jy. In 14 maser sites, the spread in the velocity of the H₂O maser emission exceeds 100 km s^-1. In one region, the H₂O maser velocities are separated by 351.3 km s^-1. The rms noise levels are typically between 1 and 2 Jy, with 95 per cent of the survey under 2 Jy. We estimate completeness limits of 98 per cent at around 8.4 Jy and 50 per cent at around 5.5 Jy. We estimate that there are between 800 and 1500 H₂O masers in the Galaxy that are detectable in a survey with similar completeness limits to HOPS. We report possible masers in NH₃ (11,9) and (8,6) emission towards G19.61-0.23 and in the NH₃ (3,3) line towards G23.33-0.30. eprintid: arXiv:1105.4663

Abstract

We present first results of the H₂O Southern Galactic Plane Survey (HOPS), using the Mopra Radio Telescope with a broad-band backend and a beam size of about 2 arcmin. We have observed 100 deg² of the southern Galactic plane at 12 mm (19.5-27.5 GHz), including spectral line emission from H₂O masers, multiple metastable transitions of ammonia, cyanoacetylene, methanol and radio recombination lines. In this paper, we report on the characteristics of the survey and H₂O maser emission. We find 540 H₂O masers, of which 334 are new detections. The strongest maser is 3933 Jy and the weakest is 0.7 Jy, with 62 masers over 100 Jy. In 14 maser sites, the spread in the velocity of the H₂O maser emission exceeds 100 km s^-1. In one region, the H₂O maser velocities are separated by 351.3 km s^-1. The rms noise levels are typically between 1 and 2 Jy, with 95 per cent of the survey under 2 Jy. We estimate completeness limits of 98 per cent at around 8.4 Jy and 50 per cent at around 5.5 Jy. We estimate that there are between 800 and 1500 H₂O masers in the Galaxy that are detectable in a survey with similar completeness limits to HOPS. We report possible masers in NH₃ (11,9) and (8,6) emission towards G19.61-0.23 and in the NH₃ (3,3) line towards G23.33-0.30. eprintid:

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Detection table from Walsh et al. (2011)

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ID	Obs. RA	Obs. Dec	l	b	Group id	grpv	Source name	Other name	Image	Line	V_range	V_peak	FWHM	F_peak	Telescope	V_step	RMS	Beam	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(deg.)	(deg.)				Com		H₂O	(km/s)	(km/s)	(km/s)	(Jy)		(km/s)	(Jy)	(arcsec)	Yes/No		(kpc)
1	17 46 35.9	-29 00 15	0.0532	-0.2181	G0.055-0.211	G0.0532-0.2181	G0.05-0.22	1	Image	22 GHz;	11.7;14.7	12.4	0.8	7.4	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
2	17 47 1.6	-28 46 00	0.3049	-0.1750	G0.3070-0.1761	G0.3070-0.1761	G0.31-0.18	2	Image	22 GHz;	-6.3;21.4	10.6	0.8	39.2	MOP	0.52	2.000	132	+H₂O +OH	SFR_MIXED		2008-2010
3	17 47 10.3	-28 46 48	0.3100	-0.2091	G0.315-0.201	G0.3100-0.2091	G0.31-0.21	2	Image	22 GHz;	10.3;22.4	21.5	0.9	6.6	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II	SFR_MIXED		2008-2010
4	17 46 04	-28 36 04	0.3370	0.0909	G0.3370+0.0909	G0.3370+0.0909	G0.34+0.09	1	Image	22 GHz;		7.1	0.6	36.6	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
5	17 47 9.7	-28 42 22	0.3720	-0.1690	G0.3720-0.1690	G0.3720-0.1690	G0.37-0.17	1	Image	22 GHz;	-9.7;-5.2	-9.1	0.9	22.4	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
6	17 46 23.8	-28 35 50	0.3780	0.0310	G0.3780+0.0310	G0.3780+0.0310	G0.38+0.03	3	Image	22 GHz;	30.3;41.5	40.0	1.6	31.8	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
7	17 46 9.8	-28 23 29	0.5272	0.1818	G0.5271+0.1818	G0.5271+0.1818	G0.53+0.18	2	Image	22 GHz;		-1.4	0.7	6.8	MOP	0.52	2.000	132	+H₂O +CH₃OH II	SFR		2008-2010
8	17 47 3.2	-28 25 18	0.6029	-0.0012	G0.6031+0.0001	G0.6031+0.0001	G0.60-0.00	NEW	Image	22 GHz;	18.2;75.7	37.2	0.9	7.1	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
9	17 47 20.7	-28 23 13	0.6659	-0.0380	G0.6666-0.0338	G0.6667-0.0337	G0.67-0.04	4	Image	22 GHz;	23.3;127.0	70.7	3.8	508.1	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +SiO			2008-2010
10	17 48 56.4	-28 12 06	1.0059	-0.2430	G1.008-0.237	G1.0059-0.2430	G1.01-0.24	NEW	Image	22 GHz;		3.4	0.7	4.0	MOP	0.52	2.000	132	+H₂O +CH₃OH II +OH	SFR		2008-2010
11	17 48 21.8	-28 04 46	1.0451	-0.0710	G1.0451-0.0710	G1.0451-0.0710	G1.05-0.07	NEW	Image	22 GHz;		-37.1	2.8	11.1	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
12	17 48 50	-28 01 18	1.1480	-0.1301	G1.1480-0.1301	G1.1480-0.1301	G1.15-0.13	5	Image	22 GHz;	-25.7;-13	-21.6	1.5	177.5	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
13	17 48 31	-27 57 27	1.1670	-0.0371	G1.1670-0.0371	G1.1670-0.0371	G1.17-0.04	NEW	Image	22 GHz;		-22.3	1.6	35.4	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
14	17 52 23.7	-26 53 18	2.5261	-0.2281	G2.521-0.220	G2.5261-0.2281	G2.53-0.23	NEW	Image	22 GHz;		1.5	0.6	4.2	MOP	0.52	2.000	132	+H₂O +CH₃OH II -OH	SFR		2008-2010
15	17 53 19.9	-26 56 44	2.5830	-0.4370	G2.583-0.433	G2.5830-0.4370	G2.58-0.44	6	Image	22 GHz;	-25.5;4.8	-6.0	0.8	72.6	MOP	0.52	2.000	132	+H₂O +OH +SiO	EVOLVED		2008-2010
16	17 53 4.9	-26 53 18	2.6040	-0.3599	G2.601-0.356	G2.6040-0.3599	G2.60-0.36	NEW	Image	22 GHz;	-21.9;-10.9	-20.5	2.1	9.1	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
17	17 54 01	-26 40 12	2.8980	-0.4290	G2.902-0.427	G2.8980-0.4290	G2.90-0.43	NEW	Image	22 GHz;		82.4	1.0	8.6	MOP	0.52	2.000	132	+H₂O			2008-2010
18	17 51 22.3	-26 17 16	2.9260	0.2750	G2.926+0.275	G2.9260+0.2750	G2.93+0.28	NEW	Image	22 GHz;		-42.8	0.5	4.1	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
19	17 53 33.6	-25 28 18	3.8790	0.2669	G3.882+0.268	G3.8790+0.2669	G3.88+0.27	NEW	Image	22 GHz;		10.3	0.9	4.3	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
20	17 53 34.9	-25 20 07	3.9990	0.3319	G4.001+0.332	G4.0006+0.3322	G4.00+0.33	NEW	Image	22 GHz;		13.6	0.9	3.5	MOP	0.52	2.000	132	+H₂O -CH₃OH II	SFR		2008-2010
21	17 55 29.5	-25 35 12	4.0002	-0.1672	G3.997-0.165	G4.0002-0.1672	G4.00-0.17	NEW	Image	22 GHz;		-55.0	7.5	2.8	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
22	17 55 51.2	-24 40 13	4.8330	0.2239	G4.827+0.230	G4.8330+0.2239	G4.83+0.22	7	Image	22 GHz;		11.1	2.7	3.2	MOP	0.52	2.000	132	+H₂O +CH₃OH I -CH₃OH II +OH	SFR		2008-2010
23	17 57 19.9	-24 47 41	4.8940	-0.1289	G4.899-0.125	G4.8943-0.1286	G4.89-0.13	NEW	Image	22 GHz;		6.9	1.4	42.8	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
24	17 57 41.2	-24 17 33	5.3691	0.0528	G5.369+0.053	G5.3691+0.0528	G5.37+0.05	NEW	Image	22 GHz;		2.5	1.1	10.0	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
25	17 59 9.9	-24 19 01	5.5162	-0.2512	G5.514-0.255	G5.5162-0.2512	G5.52-0.25	NEW	Image	22 GHz;		21.9	1.4	2.6	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
26	17 59 34	-24 14 38	5.6252	-0.2942	G5.630-0.294	G5.6252-0.2942	G5.63-0.29	NEW	Image	22 GHz;		17.5	1.2	2.5	MOP	0.52	2.000	132	+H₂O +CH₃OH II -OH	SFR		2008-2010
27	17 56 57	-23 51 36	5.6591	0.4151	G5.657+0.416	G5.6569+0.4160	G5.66+0.42	NEW	Image	22 GHz;	13.9;19.7	18.3	1.0	18.4	MOP	0.52	2.000	132	+H₂O +CH₃OH II +OH	SFR		2008-2010
28	18 00 31.9	-24 16 28	5.7080	-0.5002	G5.708-0.500	G5.7080-0.5002	G5.71-0.50	NEW; 8 - Mira variable	Image	22 GHz;		12.3	0.9	4.2	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
29	18 00 29.8	-24 04 06	5.8829	-0.3910	G5.885-0.392	G5.8852-0.3924	G5.88-0.39	9	Image	22 GHz;	2.4;11.8	9.4	0.9	207.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
	18 00 29.8	-24 04 06	5.8829	-0.3910	G5.885-0.392	G5.8852-0.3924	G5.88-0.39	9	Image	22 GHz;	2.4;11.8	9.4	0.9	207.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY		2008-2010
31	18 00 41.6	-24 04 28	5.8999	-0.4330	G5.900-0.430	G5.9003-0.4295	G5.90-0.43	2	Image	22 GHz;	7.5;47.0	10.1	2.7	7.4	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008-2010
32	18 00 33.1	-24 02 48	5.9080	-0.3911	G5.912-0.388	G5.9080-0.3911	G5.91-0.39	2	Image	22 GHz;	-64.7;-52.6	-61.5	2.2	43.0	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
33	17 59 54.9	-23 45 34	6.0850	-0.1221	G6.084-0.117	G6.0850-0.1221	G6.09-0.12	10	Image	22 GHz;		3.0	0.7	6.8	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
34	18 01 2.7	-23 47 11	6.1899	-0.3599	G6.189-0.358	G6.1891-0.3582	G6.19-0.36	NEW	Image	22 GHz;		-29.3	0.8	5.9	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
35	17 59 43.4	-23 36 02	6.2010	-0.0050	G6.199-0.004	G6.2010-0.0050	G6.20-0.01	NEW	Image	22 GHz;	-38.3;-30.4	-35.1	4.9	2.8	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
36	17 59 59.5	-23 36 21	6.2270	-0.0610	G6.226-0.053	G6.2270-0.0610	G6.23-0.06	NEW	Image	22 GHz;		16.9	0.9	4.8	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II	SFR		2008-2010
37	17 58 34.7	-23 24 54	6.2310	0.3150	G6.230+0.317	G6.2310+0.3150	G6.23+0.32	NEW	Image	22 GHz;	2.4;87.2	18.1	1.2	11.9	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
38	18 01 16.1	-23 21 22	6.5890	-0.1912	G6.588-0.192	G6.5877-0.1919	G6.59-0.19	NEW	Image	22 GHz;		-2.0	1.0	4.6	MOP	0.52	2.000	132	+H₂O +CH₃OH II +OH	SFR		2008-2010
39	18 00 54.7	-23 16 54	6.6131	-0.0832	G6.610-0.082	G6.6097-0.0823	G6.61-0.08	2	Image	22 GHz;	-0.7;7.5	5.3	1.0	29.1	MOP	0.52	2.000	132	+H₂O +CH₃OH II -OH	SFR		2008-2010
40	18 01 58.9	-23 12 57	6.7920	-0.2642	G6.795-0.257	G6.7920-0.2642	G6.79-0.26	2	Image	22 GHz;	5.5;13.2	11.7	0.8	7.8	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
41	18 02 6.2	-23 05 21	6.9159	-0.2259	G6.916-0.225	G6.9159-0.2252	G6.92-0.23	11	Image	22 GHz;	-14;-4.8	-10.0	3.3	8.8	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
42	18 02 34.7	-22 37 24	7.3751	-0.0911	G7.374-0.108	G7.3751-0.0911	G7.38-0.09	NEW	Image	22 GHz;		42.4	1.0	7.6	MOP	0.52	2.000	132	+H₂O -SiO	SFR_MIXED		2008-2010
43	18 03 27.3	-22 38 29	7.4590	-0.2760	G7.462-0.285	G7.4590-0.2760	G7.46-0.28	NEW	Image	22 GHz;		23.7	1.8	3.7	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
44	18 02 14.1	-22 28 09	7.4700	0.0539	G7.470+0.060	G7.4700+0.0539	G7.47+0.05	NEW	Image	22 GHz;	-87.5;-10.3	-16.3	1.6	42.4	MOP	0.52	2.000	132	+H₂O -CH₃OH I -CH₃OH II	SFR		2008-2010
45	18 02 48.5	-22 27 38	7.5429	-0.0570	G7.542-0.056	G7.5421-0.0563	G7.54-0.06	NEW	Image	22 GHz;		-1.1	3.2	4.4	MOP	0.52	2.000	132	+H₂O +OH	EVOLVED		2008-2010
46	18 04 34.3	-22 09 57	8.0000	-0.2672	G7.992-0.268	G8.0000-0.2672	G8.00-0.27	NEW	Image	22 GHz;	25.3;43.9	36.1	0.8	12.1	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
47	18 03 11.2	-21 53 30	8.0811	0.1470	G8.075+0.135	G8.0811+0.1470	G8.08+0.15	NEW	Image	22 GHz;		22.1	1.1	7.8	MOP	0.52	2.000	132	+H₂O +SiO	SFR_MIXED		2008-2010
48	18 03 29.2	-21 47 56	8.1961	0.1321	G8.194+0.135	G8.1961+0.1321	G8.20+0.13	NEW	Image	22 GHz;	0.4;19.6	18.4	1.0	10.7	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
49	18 04 38	-21 48 28	8.3191	-0.1041	G8.317-0.096	G8.3191-0.1041	G8.32-0.10	NEW	Image	22 GHz;		36.9	2.4	4.1	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II -OH	SFR		2008-2010
50	18 05 33.7	-21 49 49	8.4050	-0.3029	G8.405-0.302	G8.4049-0.3027	G8.41-0.30	NEW	Image	22 GHz;		47.6	1.2	10.3	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
51	18 05 48.4	-21 36 07	8.6320	-0.2409	G8.635-0.241	G8.6320-0.2409	G8.63-0.24	NEW	Image	22 GHz;		1.3	1.0	8.0	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
52	18 06 19.7	-21 37 30	8.6711	-0.3580	G8.669-0.356	G8.6691-0.3560	G8.67-0.36	12	Image	22 GHz;	-5.5;44.8	24.7	0.7	29.8	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
53	18 06 38.5	-21 37 57	8.7001	-0.4252	G8.718-0.410	G8.7001-0.4252	G8.70-0.43	NEW	Image	22 GHz;		32.8	1.3	4.9	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
54	18 06 34.2	-21 35 40	8.7252	-0.3921	G8.718-0.410	G8.7252-0.3921	G8.73-0.39	NEW	Image	22 GHz;	30.4;47.4	46.7	0.7	6.0	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
55	18 05 25.7	-21 19 24	8.8320	-0.0279	G8.832-0.028	G8.8316-0.0280	G8.83-0.03	7	Image	22 GHz;	-13.3;-7.2	-9.5	1.7	38.9	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
56	18 05 35.6	-21 13 44	8.9331	-0.0152	G8.934-0.015	G8.9334-0.0146	G8.93-0.02	13 - M supergiant	Image	22 GHz;	5.7;49.2	7.0	0.9	88.9	MOP	0.52	2.000	132	+H₂O +OH +SiO	UNK		2008-2010
57	18 07 22.8	-21 16 14	9.0999	-0.3990	G9.097-0.392	G9.0999-0.3990	G9.10-0.40	14 - Water fountain	Image	22 GHz;	-62;289.3	62.9	1.2	18.3	MOP	0.52	2.000	132	+H₂O +OH	EVOLVED		2008-2010
58	18 06 15	-20 31 43	9.6191	0.1931	G9.621+0.195	G9.6210+0.1951	G9.62+0.19	15	Image	22 GHz;	-9.8;9.1	5.6	1.7	60.2	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
59	18 05 57.2	-20 06 38	9.9499	0.4580	G9.950+0.458	G9.9505+0.4577	G9.95+0.46	NEW	Image	22 GHz;	-66.5;-61.9	-65.8	1.1	2.9	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
60	18 07 51	-20 19 15	9.9831	-0.0331	G9.986-0.028	G9.9831-0.0331	G9.98-0.03	7	Image	22 GHz;	43.7;59.6	45.2	1.7	13.4	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II -OH	SFR		2008-2010
61	18 08 59	-20 03 58	10.3349	-0.1420	G10.323-0.147	G10.3349-0.1420	G10.34-0.14	16	Image	22 GHz;	5.8;35.7	19.2	1.1	19.9	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
62	18 08 35.3	-19 57 26	10.3852	-0.0080	G10.385-0.014	G10.3852-0.0080	G10.39-0.01	NEW	Image	22 GHz;		45.9	1.2	7.2	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
63	18 08 42.5	-19 54 24	10.4430	-0.0082	G10.472+0.027	G10.4430-0.0082	G10.44-0.01	2	Image	22 GHz;	67.8;83.8	70.4	1.8	19.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		2008-2010
64	18 08 37.4	-19 51 28	10.4761	0.0330	G10.472+0.027	G10.4799+0.0330	G10.48+0.03	17	Image	22 GHz;	40.7;88.1	70.7	1.1	108.3	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		2008-2010
65	18 10 26.1	-19 55 52	10.6180	-0.3752	G10.623-0.384	G10.6180-0.3752	G10.62-0.38	18	Image	22 GHz;	-19.4;8.8	0.3	3.1	381.5	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		2008-2010
66	18 10 56.1	-19 58 35	10.6350	-0.4999	G10.632-0.512	G10.6350-0.4999	G10.64-0.50	NEW	Image	22 GHz;	-71.8;-46.1	-67.9	3.9	59.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
67	18 09 7.4	-19 27 20	10.8850	0.1250	G10.885+0.123	G10.8855+0.1227	G10.89+0.13	NEW	Image	22 GHz;	9.0;26.0	23.9	2.2	13.8	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2008-2010
68	18 09 38.9	-19 26 18	10.9600	0.0251	G10.959+0.022	G10.9583+0.0222	G10.96+0.03	19	Image	22 GHz;		24.3	0.5	25.7	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2008-2010
69	18 11 22.2	-18 52 28	11.6501	-0.0589	G11.650-0.059	G11.6501-0.0589	G11.65-0.06	NEW	Image	22 GHz;	-3.1;30.8	3.7	6.1	1.4	MOP	0.52	2.000	132	+H₂O			2008-2010
70	18 11 57.2	-18 51 53	11.7250	-0.1752	G11.723-0.178	G11.7250-0.1752	G11.73-0.18	NEW	Image	22 GHz;		-43.0	0.9	5.9	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
71	18 11 35.6	-18 39 21	11.8671	0.0000	G11.865-0.001	G11.8671+0.0000	G11.87+0.00	NEW	Image	22 GHz;	20.2;38.9	21.2	0.9	21.6	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
72	18 12 13.2	-18 40 49	11.9171	-0.1419	G11.904-0.141	G11.9171-0.1419	G11.92-0.14	12	Image	22 GHz;	23.8;49.6	33.8	0.8	7.1	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
73	18 12 22	-18 39 09	11.9581	-0.1590	G11.936-0.150	G11.9581-0.1590	G11.96-0.16	NEW	Image	22 GHz;	38.5;45.2	40.3	1.4	6.2	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
74	18 12 38.5	-18 23 39	12.2160	-0.0921	G12.209-0.107	G12.2160-0.0921	G12.22-0.09	4	Image	22 GHz;		20.8	4.6	3.2	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
75	18 10 53.2	-18 09 56	12.2160	0.3831	G12.214+0.380	G12.2160+0.3831	G12.22+0.38	NEW	Image	22 GHz;		37.7	0.9	20.9	MOP	0.52	2.000	132	+H₂O +OH			2008-2010
76	18 13 31.4	-18 29 57	12.2241	-0.3260	G12.220-0.334	G12.2241-0.3260	G12.22-0.33	NEW	Image	22 GHz;		-15.8	1.3	21.5	MOP	0.52	2.000	132	+H₂O -CH₃OH II	UNK		2008-2010
77	18 13 39.2	-18 08 45	12.5491	-0.1839	G12.549-0.184	G12.5491-0.1839	G12.55-0.18	NEW	Image	22 GHz;		59.5	0.8	9.4	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
78	18 13 53.5	-18 01 31	12.6820	-0.1759	G12.681-0.182	G12.6820-0.1759	G12.68-0.18	20	Image	22 GHz;	53.7;61.9	58.6	0.8	163.4	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
79	18 14 13.3	-17 54 55	12.8162	-0.1922	G12.797-0.193	G12.8162-0.1922	G12.82-0.19	4	Image	22 GHz;	30.5;37.4	36.1	1.2	2.8	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
80	18 13 45.5	-17 45 06	12.9071	-0.0171	G12.904-0.031	G12.9071-0.0171	G12.91-0.02	4	Image	22 GHz;		13.6	2.3	19.4	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008-2010
81	18 14 36.4	-17 51 05	12.9161	-0.2421	G12.908-0.260	G12.9161-0.2421	G12.92-0.24	4	Image	22 GHz;	28.9;36.3	35.6	1.6	5.5	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
82	18 13 55.1	-17 44 02	12.9409	-0.0420	G12.941-0.042	G12.9409-0.0420	G12.94-0.04	NEW	Image	22 GHz;		20.9	0.7	6.1	MOP	0.52	2.000	132	+H₂O			2008-2010
83	18 14 0.7	-17 44 45	12.9411	-0.0673	G12.935-0.074	G12.9411-0.0673	G12.94-0.07	NEW	Image	22 GHz;		33.5	0.7	57.0	MOP	0.52	2.000	132	+H₂O +CH₃OH II	SFR		2008-2010
84	18 14 3.2	-17 27 56	13.1920	0.0581	G13.179+0.060	G13.1920+0.0581	G13.19+0.06	4	Image	22 GHz;		-4.1	3.5	9.1	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II -OH	SFR		2008-2010
85	18 13 52.9	-17 09 31	13.4419	0.2409	G13.439+0.238	G13.4419+0.2409	G13.44+0.24	NEW	Image	22 GHz;	40.7;55.4	48.2	0.9	9.0	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
86	18 14 0.4	-17 09 23	13.4581	0.2158	G13.458+0.216	G13.4581+0.2158	G13.46+0.22	NEW	Image	22 GHz;		16.4	1.1	7.1	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
87	18 15 26.9	-17 04 39	13.6920	-0.0492	G13.686-0.050	G13.6920-0.0492	G13.69-0.05	NEW	Image	22 GHz;		44.7	0.9	31.9	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
88	18 14 32	-16 48 58	13.8172	0.2679	G13.820+0.268	G13.8172+0.2679	G13.82+0.27	NEW	Image	22 GHz;		70.9	1.3	2.9	MOP	0.52	2.000	132	+H₂O			2008-2010
89	18 14 34.8	-16 44 50	13.8831	0.2910	G13.875+0.283	G13.8831+0.2910	G13.88+0.29	4	Image	22 GHz;	-45.6;-14	-41.7	1.4	20.0	MOP	0.52	2.000	132	+H₂O +CH₃OH I -CH₃OH II -OH	SFR_MIXED		2008-2010
90	18 17 4.6	-16 54 01	14.0331	-0.3073	G14.033-0.307	G14.0331-0.3073	G14.03-0.31	NEW	Image	22 GHz;		129.0	1.0	5.9	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
91	18 15 45.3	-16 38 38	14.1081	0.0930	G14.101+0.087	G14.1081+0.0930	G14.11+0.09	21	Image	22 GHz;		9.2	0.8	47.9	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2008-2010
92	18 16 23.6	-16 39 35	14.1670	-0.0490	G14.166-0.060	G14.1670-0.0490	G14.17-0.05	8	Image	22 GHz;	35.1;57.9	54.3	1.3	126.5	MOP	0.52	2.000	132	+H₂O +OH +SiO	EVOLVED		2008-2010
93	18 16 56.9	-16 41 38	14.2001	-0.1822	G14.195-0.193	G14.2001-0.1822	G14.20-0.18	NEW	Image	22 GHz;		24.1	1.3	27.5	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
94	18 16 59.6	-16 14 10	14.6081	0.0258	G14.604+0.016	G14.6081+0.0258	G14.61+0.03	21	Image	22 GHz;	7.6;32.0	29.8	0.9	21.9	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
95	18 17 24.2	-16 12 47	14.6751	-0.0499	G14.667-0.043	G14.6751-0.0499	G14.68-0.05	NEW	Image	22 GHz;	-6.7;-0.9	-5.2	0.8	13.0	MOP	0.52	2.000	132	+H₂O -CH₃OH I -SiO	SFR_MIXED		2008-2010
96	18 18 43.9	-16 16 16	14.7750	-0.3582	G14.770-0.355	G14.7750-0.3582	G14.78-0.36	NEW	Image	22 GHz;	30.0;34.0	31.6	1.3	4.9	MOP	0.52	2.000	132	+H₂O -CH₃OH I	SFR		2008-2010
97	18 17 16.5	-15 43 22	15.0920	0.2100	G15.092+0.210	G15.0920+0.2100	G15.09+0.21	22	Image	22 GHz;	20.7;32.1	28.0	0.9	21.4	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
98	18 19 22.3	-15 29 28	15.5351	-0.1249	G15.535-0.125	G15.5351-0.1249	G15.54-0.13	NEW	Image	22 GHz;		23.1	0.6	4.3	MOP	0.52	2.000	132	+H₂O	SFR		2008-2010
99	18 17 36.7	-15 14 38	15.5520	0.3658	G15.552+0.364	G15.5520+0.3658	G15.55+0.37	NEW	Image	22 GHz;		70.1	2.9	2.0	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
100	18 18 53.2	-14 56 09	15.9691	0.2407	G15.972+0.241	G15.9691+0.2407	G15.97+0.24	NEW	Image	22 GHz;	-98.1;190.5	58.3	0.6	49.5	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
101	18 20 24.7	-15 02 24	16.0512	-0.1331	G16.047-0.134	G16.0512-0.1331	G16.05-0.13	NEW	Image	22 GHz;		62.2	0.6	13.7	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
102	18 19 37	-14 42 38	16.2510	0.1918	G16.251+0.192	G16.2510+0.1918	G16.25+0.19	NEW	Image	22 GHz;		-1.3	1.7	3.7	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
103	18 18 50.7	-14 34 55	16.2761	0.4170	G16.276+0.417	G16.2761+0.4170	G16.28+0.42	NEW	Image	22 GHz;		-84.7	3.8	1.0	MOP	0.52	2.000	132	+H₂O	UNK		2008-2010
104	18 19 6.7	-14 24 32	16.4591	0.4420	G16.455+0.431	G16.4591+0.4420	G16.46+0.44	NEW	Image	22 GHz;	18.0;46.7	21.2	1.5	18.2	MOP	0.52	2.000	132	+H₂O +OH	EVOLVED		2008-2010
105	18 21 7.1	-14 31 38	16.5840	-0.0421	G16.585-0.051	G16.5840-0.0421	G16.58-0.04	12	Image	22 GHz;	56.5;69.5	63.9	1.3	63.2	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
106	18 23 15.8	-13 42 35	17.5500	-0.1171	G17.551-0.126	G17.5500-0.1171	G17.55-0.12	13	Image	22 GHz;	28.7;57.2	30.6	1.1	477.2	MOP	0.52	2.000	132	+H₂O +OH +SiO	EVOLVED		2008-2010
107	18 22 24.5	-13 29 42	17.6421	0.1671	G17.638+0.157	G17.6421+0.1671	G17.64+0.17	23	Image	22 GHz;	15.7;27.3	26.0	1.0	126.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		2008-2010
108	18 23 18.5	-13 14 36	17.9670	0.0919	G17.964+0.079	G17.9670+0.0919	G17.97+0.09	NEW	Image	22 GHz;		26.6	0.8	8.3	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II	SFR_MIXED		2008-2010
109	18 22 47.8	-13 09 27	17.9844	0.2421	G17.979+0.232	G17.9844+0.2421	G17.98+0.24	22	Image	22 GHz;		15.4	0.9	15.0	MOP	0.52	2.000	132	+H₂O -CH₃OH II -OH	SFR		2008-2010
110	18 22 36.8	-12 56 14	18.1580	0.3850	G18.158+0.385	G18.1580+0.3850	G18.16+0.39	NEW	Image	22 GHz;		55.6	0.9	10.4	MOP	0.52	2.000	132	+H₂O	EVOLVED		2008-2010
111	18 24 35.2	-13 05 53	18.2411	-0.1150	G18.243-0.115	G18.2427-0.1154	G18.24-0.12	NEW	Image	22 GHz;		39.1	1.8	8.4	MOP	0.52	2.000	132	+H₂O	SFR_MIXED		2008-2010
112	18 24 9.9	-12 43 25	18.5240	0.1510	G18.524+0.152	G18.5239+0.1517	G18.52+0.15	NEW	Image	22 GHz;		22.4	3.0	3.0	MOP	0.52	2.000	132	+H₂O +OH	SFR_MIXED		2008-2010
113	18 24 38	-12 45 21	18.5489	0.0350	G18.551+0.035	G18.5507+0.0352	G18.55+0.04	NEW	Image	22 GHz;	31.3;35.2	32.2	0.5	10.7	MOP	0.52	2.000	132	+H₂O +OH	SFR		2008-2010
114	18 25 10.3	-12 45 30	18.6081	-0.0822	G18.606-0.075	G18.6081-0.0822	G18.61-0.08	NEW	Image	22 GHz;	40.0;52.4	41.3	1.2	6.0	MOP	0.52	2.000	132	+H₂O +CH₃OH I	SFR		2008-2010
115	18 25 55.3	-12 42 49	18.7330	-0.2231	G18.734-0.224	G18.7341-0.2242	G18.73-0.22	NEW	Image	22 GHz;	32.2;46.3	36.7	1.3	28.5	MOP	0.52	2.000	132	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2008-2010
116	18 27 07	-12 41 55	18.8821	-0.4739	G18.888-0.475	G18.8821-0.4739	G18.88-0.47	NEW	Image	22 GHz;		65.1	1.5	7.7	MOP	0.52	2.000	132	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		2008-2010
117	18 26 27.8	-12 28 57	18.9991	-0.2322	G18.999-0.239	G18.9991-0.2322	G19.00-0.23	NEW	Image	22 GHz;		-15.9	7.2	21.8	MOP	0.52	2.000	132	+H₂O +CH₃OH II -OH	SFR		2008-2010
118	18 27 36.4	-12 27 23	19.1522	-0.4670

Display data from paper

WAL11 - The H2O Southern Galactic Plane Survey (HOPS) - I. Techniques and H2O maser data

View as list of objects

Detection table from Walsh et al. (2011)