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ELL11B - 37 GHz Methanol Masers : Horsemen of the Apocalypse for the Class II Methanol Maser Phase?

Short title: Ellingsen et al. (2011)
Authors: Ellingsen, S. P.Breen, S. L.Sobolev, A. M.Voronkov, M. A.Caswell, J. L.Lo, N.
Journal: The Astrophysical Journal, Volume 742, Issue 2, article id. 109, 14 pp. (2011).
Bibcode:

Non-detection table: Show non-detection table
Detection table: Show detection table (30 detection) Non-detection table: Show non-detection table (173 non-detection)
Target type: Known_Class_II
Transitions: CH3OH_37(II),CH3OH_38(II)

Abstract
We report the results of a search for class II methanol masers at 37.7, 38.3, and 38.5 GHz toward a sample of 70 high-mass star formation regions. We primarily searched toward regions known to show emission either from the 107 GHz class II methanol maser transition, or from the 6.035 GHz excited OH transition. We detected maser emission from 13 sources in the 37.7 GHz transition, eight of these being new detections. We detected maser emission from three sources in the 38 GHz transitions, one of which is a new detection. We find that 37.7 GHz methanol masers are only associated with the most luminous 6.7 and 12.2 GHz methanol maser sources, which in turn are hypothesized to be the oldest class II methanol sources. We suggest that the 37.7 GHz methanol masers are associated with a brief evolutionary phase (of 1000-4000 years) prior to the cessation of class II methanol maser activity in the associated high-mass star formation region.

Abstract

We report the results of a search for class II methanol masers at 37.7, 38.3, and 38.5 GHz toward a sample of 70 high-mass star formation regions. We primarily searched toward regions known to show emission either from the 107 GHz class II methanol maser transition, or from the 6.035 GHz excited OH transition. We detected maser emission from 13 sources in the 37.7 GHz transition, eight of these being new detections. We detected maser emission from three sources in the 38 GHz transitions, one of which is a new detection. We find that 37.7 GHz methanol masers are only associated with the most luminous 6.7 and 12.2 GHz methanol maser sources, which in turn are hypothesized to be the oldest class II methanol sources. We suggest that the 37.7 GHz methanol masers are associated with a brief evolutionary phase (of 1000-4000 years) prior to the cessation of class II methanol maser activity in the associated high-mass star formation region.

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Detection table from Ellingsen et al. (2011)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Image	Descr.	Line	V_peak	FWHM	F_peak	Beam	Detection	Class	Dist. (parallax)
	(J2000)	(J2000)	(deg.)	(deg.)					CH₃OH (class II)	(km/s)	(km/s)	(Jy)	(arcsec)	Yes/No		(kpc)
1	02 27 3.8	+61 52 25	133.9473	1.0643	G133.949+1.064	W3(OH)	Image	Descr	37 GHz (II);	-42.96(0.03)	1.01(0.05)	2.2(0.2)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
2	06 08 53.7	+21 38 30	188.9466	0.8873	G188.946+0.887	G188.95+0.89	Image		37 GHz (II);	10.74(0.01)	0.68(0.01)	23.4(0.6)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
3	15 00 55.4	-58 58 53	318.9478	-0.1962	G318.948-0.196	G318.948-0.196	Image		37 GHz (II);	-34.19(0.01)	0.47(0.03)	9.3(0.5)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
4	15 31 45.6	-56 30 50	323.7404	-0.2628	G323.740-0.263	G323.740-0.263	Image		37 GHz (II);	-51.18(0.01)	0.64 (0.02)	14.6(0.5)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
	15 31 45.6	-56 30 50	323.7404	-0.2628	G323.740-0.263	G323.740-0.263			37 GHz (II);	-49.7(0.05)	1.04 (0.12)	3.7(0.4)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
6	16 38 29.7	-47 00 35	337.7055	-0.0531	G337.705-0.053	G337.705-0.053	Image	Descr	37 GHz (II);	-55.00(0.06)	0.46 (0.14)	2.4(0.6)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
7	16 52 4.8	-46 08 34	339.8843	-1.2590	G339.884-1.259	G339.884-1.259	Image		37 GHz (II);	-38.70(0.001)	0.38 (0.001)	323(0.9)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
8	16 50 14.8	-44 42 25	340.7852	-0.0956	G340.785-0.096	G340.785-0.096	Image		37 GHz (II);	-105.48 (0.01)	0.38 (0.01)	20.5(0.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	16 50 14.8	-44 42 25	340.7852	-0.0956	G340.785-0.096	G340.785-0.096			37 GHz (II);	-106.57 (0.01)	0.39 (0.03)	12.4(0.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
10	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792	Image		37 GHz (II);	-22.1	0.33(0.001)	207(1.0)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			37 GHz (II);	-21.83	0.72(0.006)	93.8(0.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			37 GHz (II);	-20.9	0.26(0.03)	11.0(1.1)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
13	17 20 4.1	-38 58 30	348.7040	-1.0436	G348.720-1.039	G348.703-1.043	Image		37 GHz (II);	-3.4	0.36(0.08)	4.4(0.9)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
14	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F	Image	Descr	37 GHz (II);	-10.91(0.01)	0.36(0.01)	70.4(1.5)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F			37 GHz (II);	-10.45(0.02)	0.4	21.9(1.2)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F			37 GHz (II);	-10.1(0.2)	2.9(0.4)	3.5(0.6)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
17	18 06 14.8	-20 31 32	9.6214	0.1953	G9.621+0.195	G9.621+0.196	Image		37 GHz (II);	-1.08(0.01)	0.59(0.01)	23.6(0.6)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	18 06 14.8	-20 31 32	9.6214	0.1953	G9.621+0.195	G9.621+0.196			37 GHz (II);	-0.28(0.02)	0.43(0.05)	8.3(0.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
19	18 34 39.2	-08 31 24	23.4402	-0.1822	G23.437-0.184	G23.440-0.182	Image		37 GHz (II);	98.03(0.04)	0.5	2.3(0.3)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
20	19 01 45.5	+01 13 29	35.1993	-1.7368	G35.200-1.737	G35.201-1.736	Image		37 GHz (II);	44.51(0.03)	0.53(0.2)	3.2(1.3)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
21	02 27 3.8	+61 52 25	133.9473	1.0643	G133.949+1.064	W3(OH)			38.2 GHz (II);	-43.09(0.008)	0.91(0.03)	10.9(0.4)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
22	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			38.2 GHz (II);	-22.30(0.02)	0.46(0.05)	9.4(0.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			38.2 GHz (II);	-21.38(0.03)	0.61(0.07)	7.6(0.6)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
24	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F		Descr	38.2 GHz (II);	-10.49(0.001)	0.34(0.02)	174(7.0)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F			38.2 GHz (II);	-11.02(0.008)	0.38(0.04)	32.9(2.7)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
26	02 27 3.8	+61 52 25	133.9473	1.0643	G133.949+1.064	W3(OH)			38.4 GHz (II);	-42.88(0.009)	0.47(0.03)	16.1(1.1)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
27	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			38.4 GHz (II);	-22.25(0.06)	1.04(0.15)	5.0(0.5)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
	16 56 47.7	-40 14 26	345.0097	1.7921	G345.010+1.792	G345.010-1.792			38.4 GHz (II);	-21.26(0.05)	0.48(0.13)	3.6(0.8)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
29	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F		Descr	38.4 GHz (II);	-10.47(0.06)	0.33(0.11)	150(20)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
	17 20 53.4	-35 47 00	351.4172	0.6454	G351.417+0.645	NGC 6334F			38.4 GHz (II);	-10.94(0.11)	0.37(0.09)	44(15)	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED

Non-detection table from Ellingsen et al. (2011)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Line	RMS	Beam	Detection	Class
	(J2000)	(J2000)	(deg.)	(deg.)			CH₃OH (class II)	(Jy)	(arcsec)	Yes/No
1	05 35 27.5	-05 09 37	208.8160	-19.2393	G208.816-19.239	OMC 2	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
2	05 35 14	-05 24 05	209.0169	-19.3985	G209.015-19.405	Orion S6	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
3	05 39 12.9	+35 45 54	173.4808	2.4461	G173.481+2.446	G173.481+2.446	37 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
4	06 12 54.5	+17 59 20	192.6020	-0.0468	G192.599-0.048	G192.600-0.048	37 GHz (II);	0.800	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
5	06 07 48	-06 22 57	213.7053	-12.5965	G213.705-12.597	G213.71-12.60	37 GHz (II);	0.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
6	07 44 51.9	-24 07 42	240.3156	0.0710	G240.316+0.071	G240.316+0.071	37 GHz (II);	1.400	73	+H₂O -CH₃OH II +OH	SFR
7	12 34 53.4	-61 39 40	300.9691	1.1476	G300.969+1.148	G300.969+1.148	37 GHz (II);	1.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
8	13 50 41.8	-61 35 10	309.9206	0.4789	G309.921+0.479	G309.921+0.479	37 GHz (II);	1.600	73	-H₂O +CH₃OH II +OH	SFR
9	13 51 58.5	-61 15 40	310.1441	0.7601	G310.144+0.760	G310.144+0.760	37 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
10	14 06 38.8	-61 58 23	311.6428	-0.3800	G311.643-0.380	G311.643-0.380	37 GHz (II);	1.400	73	+H₂O +CH₃OH II +OH	SFR_MIXED
11	15 29 19.4	-56 31 20	323.4594	-0.0783	G323.459-0.079	G323.459-0.079	37 GHz (II);	1.600	73	-H₂O +CH₃OH II +OH	SFR
12	15 47 32.8	-53 52 38	327.1198	0.5108	G327.120+0.511	G327.120+0.511	37 GHz (II);	0.400	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
13	15 57 58.3	-53 59 22	328.2367	-0.5472	G328.237-0.547	G328.237-0.547	37 GHz (II);	1.800	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
14	15 54 6.5	-53 11 40	328.3074	0.4304	G328.307+0.430	G328.307+0.430	37 GHz (II);	1.400	73	+H₂O -CH₃OH II +OH	SFR_MIXED
15	15 55 48.5	-52 43 07	328.8084	0.6329	G328.809+0.633	G328.808+0.633	37 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
16	16 09 52.8	-51 54 56	330.9538	-0.1827	G330.954-0.182	G330.953-0.182	37 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
17	16 12 9.1	-51 25 48	331.5424	-0.0667	G331.543-0.066	G331.542-0.066	37 GHz (II);	0.800	73	-H₂O +CH₃OH I +CH₃OH II +OH	SFR
18	16 35 9.3	-48 46 47	336.0181	-0.8272	G336.018-0.826	G336.018-0.827	37 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
19	16 38 50.4	-47 28 03	337.4037	-0.4022	G337.404-0.402	G337.404-0.402	37 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
20	16 39 39	-46 41 28	338.0747	0.0119	G338.075+0.012	G338.075+0.012	37 GHz (II);	0.600	73	+H₂O +CH₃OH II +OH	SFR_MIXED
21	16 48 13.9	-45 21 44	340.0543	-0.2437	G340.054-0.244	G340.054-0.244	37 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
22	17 00 10.9	-42 07 19	343.9295	0.1250	G343.929+0.125	G343.929+0.125	37 GHz (II);	0.500	73	-H₂O +CH₃OH II +OH	SFR
23	17 04 22.8	-40 44 21	345.5047	0.3487	G345.505+0.348	G345.504+0.348	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
24	17 05 10.9	-41 29 06	345.0030	-0.2235	G345.003-0.223	G345.003-0.223	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
25	17 11 50.9	-39 09 30	347.6277	0.1484	G347.628+0.148	G347.628+0.148	37 GHz (II);	0.600	73	+H₂O +CH₃OH II +OH	SFR
26	17 19 20.4	-39 03 52	348.5497	-0.9789	G348.550-0.979	G348.550-0.979	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
27	17 26 42.7	-36 09 16	351.7752	-0.5366	G351.775-0.537	G351.775-0.536	37 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
28	17 25 25.2	-36 12 46	351.5811	-0.3532	G351.581-0.353	G351.581-0.353	37 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
29	17 30 26.2	-34 41 45	353.4100	-0.3601	G353.410-0.360	G353.410-0.360	37 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
30	17 31 15.5	-33 14 05	354.7244	0.3003	G354.724+0.300	G354.724+0.300	37 GHz (II);	1.600	73	+H₂O +CH₃OH II +OH	SFR
31	17 33 29	-32 47 59	355.3436	0.1474	G355.344+0.148	G355.344+0.147	37 GHz (II);	1.300	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
32	17 54 38.8	-25 34 42	3.9112	0.0015	G3.910+0.001	G3.910+0.001	37 GHz (II);	1.100	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
33	18 00 30.4	-24 04 03	5.8848	-0.3925	G5.885-0.392	G5.885-0.392	37 GHz (II);	0.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
34	18 06 19	-21 37 32	8.6693	-0.3559	G8.669-0.357	G8.669-0.356	37 GHz (II);	1.300	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
35	18 10 28.7	-19 55 49	10.6236	-0.3837	G10.623-0.383	G10.623-0.384	37 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
36	18 12 11.5	-18 41 28	11.9043	-0.1412	G11.904-0.141	G11.904-0.141	37 GHz (II);	1.200	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR_MIXED
37	18 14 39.5	-17 52 00	12.9085	-0.2602	G12.908-0.260	G12.909-0.260	37 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
38	18 20 24.8	-16 11 34	15.0348	-0.6770	G15.033-0.674	G15.034-0.677	37 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
39	18 27 43.9	-11 15 04	20.2333	0.0666	G20.237+0.065	G20.23+0.07	37 GHz (II);	1.100	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
40	18 34 39	-08 31 36	23.4369	-0.1830	G23.437-0.184		37 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
41	18 34 40.4	-09 00 37	23.0103	-0.4109	G23.010-0.411	G23.010-0.411	37 GHz (II);	0.300	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
42	18 34 39.9	-09 00 44	23.0076	-0.4099	G23.010-0.411		37 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
43	18 34 19.7	-05 59 44	25.6469	1.0537	G25.649+1.050	G25.65+1.05	37 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
44	18 38 3.1	-06 24 15	25.7094	0.0440	G25.709+0.044	G25.709+0.044	37 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
45	18 42 58.2	-04 13 56	28.2009	-0.0495	G28.200-0.050	G28.201-0.049	37 GHz (II);	1.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
46	18 42 58	-04 14 01	28.1993	-0.0494	G28.200-0.050		37 GHz (II);	4.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
47	18 46 3.6	-02 39 24	29.9547	-0.0158	G29.956-0.016	G29.950-0.020	37 GHz (II);	0.800	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
48	18 49 38.5	-00 45 29	32.0525	0.0540	G32.045+0.059	G32.03+0.05	37 GHz (II);	2.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
49	18 53 28.7	+00 31 58	33.6387	-0.2110	G33.641-0.228	G33.640-0.210	37 GHz (II);	2.200	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
50	18 54 17.2	+04 41 09	37.4274	1.5028	G37.427+1.518	G37.43+1.50	37 GHz (II);	2.200	73	+H₂O +CH₃OH I +CH₃OH II	SFR
51	18 58 13	+01 40 33	35.1963	-0.7434	G35.197-0.743	G35.20-0.74	37 GHz (II);	0.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
52	05 35 27.5	-05 09 37	208.8160	-19.2393	G208.816-19.239	OMC 2	38.2 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
53	05 35 14	-05 24 05	209.0169	-19.3985	G209.015-19.405	Orion S6	38.2 GHz (II);	0.800	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
54	05 39 12.9	+35 45 54	173.4808	2.4461	G173.481+2.446	G173.481+2.446	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
55	06 08 53.7	+21 38 30	188.9466	0.8873	G188.946+0.887	G188.95+0.89	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
56	06 12 54.5	+17 59 20	192.6020	-0.0468	G192.599-0.048	G192.600-0.048	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
57	06 07 48	-06 22 57	213.7053	-12.5965	G213.705-12.597	G213.71-12.60	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
58	07 44 51.9	-24 07 42	240.3156	0.0710	G240.316+0.071	G240.316+0.071	38.2 GHz (II);	1.300	73	+H₂O -CH₃OH II +OH	SFR
59	12 34 53.4	-61 39 40	300.9691	1.1476	G300.969+1.148	G300.969+1.148	38.2 GHz (II);	1.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
60	13 50 41.8	-61 35 10	309.9206	0.4789	G309.921+0.479	G309.921+0.479	38.2 GHz (II);	1.500	73	-H₂O +CH₃OH II +OH	SFR
61	13 51 58.5	-61 15 40	310.1441	0.7601	G310.144+0.760	G310.144+0.760	38.2 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
62	14 06 38.8	-61 58 23	311.6428	-0.3800	G311.643-0.380	G311.643-0.380	38.2 GHz (II);	1.500	73	+H₂O +CH₃OH II +OH	SFR_MIXED
63	15 00 55.4	-58 58 53	318.9478	-0.1962	G318.948-0.196	G318.948-0.196	38.2 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
64	15 29 19.4	-56 31 20	323.4594	-0.0783	G323.459-0.079	G323.459-0.079	38.2 GHz (II);	1.500	73	-H₂O +CH₃OH II +OH	SFR
65	15 31 45.6	-56 30 50	323.7404	-0.2628	G323.740-0.263	G323.740-0.263	38.2 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
66	15 47 32.8	-53 52 38	327.1198	0.5108	G327.120+0.511	G327.120+0.511	38.2 GHz (II);	0.400	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
67	15 57 58.3	-53 59 22	328.2367	-0.5472	G328.237-0.547	G328.237-0.547	38.2 GHz (II);	1.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
68	15 54 6.5	-53 11 40	328.3074	0.4304	G328.307+0.430	G328.307+0.430	38.2 GHz (II);	1.400	73	+H₂O -CH₃OH II +OH	SFR_MIXED
69	15 55 48.5	-52 43 07	328.8084	0.6329	G328.809+0.633	G328.808+0.633	38.2 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
70	16 09 52.8	-51 54 56	330.9538	-0.1827	G330.954-0.182	G330.953-0.182	38.2 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
71	16 12 9.1	-51 25 48	331.5424	-0.0667	G331.543-0.066	G331.542-0.066	38.2 GHz (II);	0.800	73	-H₂O +CH₃OH I +CH₃OH II +OH	SFR
72	16 35 9.3	-48 46 47	336.0181	-0.8272	G336.018-0.826	G336.018-0.827	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
73	16 38 29.7	-47 00 35	337.7055	-0.0531	G337.705-0.053	G337.705-0.053	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
74	16 38 50.4	-47 28 03	337.4037	-0.4022	G337.404-0.402	G337.404-0.402	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
75	16 39 39	-46 41 28	338.0747	0.0119	G338.075+0.012	G338.075+0.012	38.2 GHz (II);	0.500	73	+H₂O +CH₃OH II +OH	SFR_MIXED
76	16 48 13.9	-45 21 44	340.0543	-0.2437	G340.054-0.244	G340.054-0.244	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
77	16 50 14.8	-44 42 25	340.7852	-0.0956	G340.785-0.096	G340.785-0.096	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
78	16 52 4.8	-46 08 34	339.8843	-1.2590	G339.884-1.259	G339.884-1.259	38.2 GHz (II);	0.800	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
79	17 00 10.9	-42 07 19	343.9295	0.1250	G343.929+0.125	G343.929+0.125	38.2 GHz (II);	0.500	73	-H₂O +CH₃OH II +OH	SFR
80	17 04 22.8	-40 44 21	345.5047	0.3487	G345.505+0.348	G345.504+0.348	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
81	17 05 10.9	-41 29 06	345.0030	-0.2235	G345.003-0.223	G345.003-0.223	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
82	17 11 50.9	-39 09 30	347.6277	0.1484	G347.628+0.148	G347.628+0.148	38.2 GHz (II);	0.500	73	+H₂O +CH₃OH II +OH	SFR
83	17 19 20.4	-39 03 52	348.5497	-0.9789	G348.550-0.979	G348.550-0.979	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
84	17 20 4.1	-38 58 30	348.7040	-1.0436	G348.720-1.039	G348.703-1.043	38.2 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
85	17 26 42.7	-36 09 16	351.7752	-0.5366	G351.775-0.537	G351.775-0.536	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
86	17 25 25.2	-36 12 46	351.5811	-0.3532	G351.581-0.353	G351.581-0.353	38.2 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
87	17 30 26.2	-34 41 45	353.4100	-0.3601	G353.410-0.360	G353.410-0.360	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
88	17 31 15.5	-33 14 05	354.7244	0.3003	G354.724+0.300	G354.724+0.300	38.2 GHz (II);	1.600	73	+H₂O +CH₃OH II +OH	SFR
89	17 33 29	-32 47 59	355.3436	0.1474	G355.344+0.148	G355.344+0.147	38.2 GHz (II);	1.400	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
90	17 54 38.8	-25 34 42	3.9112	0.0015	G3.910+0.001	G3.910+0.001	38.2 GHz (II);	0.800	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
91	18 00 30.4	-24 04 03	5.8848	-0.3925	G5.885-0.392	G5.885-0.392	38.2 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
92	18 06 19	-21 37 32	8.6693	-0.3559	G8.669-0.357	G8.669-0.356	38.2 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
93	18 06 14.8	-20 31 32	9.6214	0.1953	G9.621+0.195	G9.621+0.196	38.2 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
94	18 06 14.8	-20 31 40	9.6194	0.1942	G9.621+0.195	G9.621+0.196	38.2 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
95	18 10 28.7	-19 55 49	10.6236	-0.3837	G10.623-0.383	G10.623-0.384	38.2 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
96	18 12 11.5	-18 41 28	11.9043	-0.1412	G11.904-0.141	G11.904-0.141	38.2 GHz (II);	1.400	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR_MIXED
97	18 14 39.5	-17 52 00	12.9085	-0.2602	G12.908-0.260	G12.909-0.260	38.2 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
98	18 20 24.8	-16 11 34	15.0348	-0.6770	G15.033-0.674	G15.034-0.677	38.2 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
99	18 27 43.9	-11 15 04	20.2333	0.0666	G20.237+0.065	G20.23+0.07	38.2 GHz (II);	1.200	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
100	18 34 39.2	-08 31 24	23.4402	-0.1822	G23.437-0.184	G23.440-0.182	38.2 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
101	18 34 39	-08 31 36	23.4369	-0.1830	G23.437-0.184		38.2 GHz (II);	1.300	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
102	18 34 40.4	-09 00 37	23.0103	-0.4109	G23.010-0.411	G23.010-0.411	38.2 GHz (II);	0.300	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
103	18 34 39.9	-09 00 44	23.0076	-0.4099	G23.010-0.411		38.2 GHz (II);	0.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
104	18 34 19.7	-05 59 44	25.6469	1.0537	G25.649+1.050	G25.65+1.05	38.2 GHz (II);	1.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
105	18 38 3.1	-06 24 15	25.7094	0.0440	G25.709+0.044	G25.709+0.044	38.2 GHz (II);	1.000	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
106	18 42 58.2	-04 13 56	28.2009	-0.0495	G28.200-0.050	G28.201-0.049	38.2 GHz (II);	1.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
107	18 42 58	-04 14 01	28.1993	-0.0494	G28.200-0.050		38.2 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
108	18 46 3.6	-02 39 24	29.9547	-0.0158	G29.956-0.016	G29.950-0.020	38.2 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
109	18 49 38.5	-00 45 29	32.0525	0.0540	G32.045+0.059	G32.03+0.05	38.2 GHz (II);	1.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
110	18 53 28.7	+00 31 58	33.6387	-0.2110	G33.641-0.228	G33.640-0.210	38.2 GHz (II);		73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
111	18 54 17.2	+04 41 09	37.4274	1.5028	G37.427+1.518	G37.43+1.50	38.2 GHz (II);	1.800	73	+H₂O +CH₃OH I +CH₃OH II	SFR
112	18 58 13	+01 40 33	35.1963	-0.7434	G35.197-0.743	G35.20-0.74	38.2 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
113	05 35 27.5	-05 09 37	208.8160	-19.2393	G208.816-19.239	OMC 2	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
114	05 35 14	-05 24 05	209.0169	-19.3985	G209.015-19.405	Orion S6	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
115	05 39 12.9	+35 45 54	173.4808	2.4461	G173.481+2.446	G173.481+2.446	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
116	06 08 53.7	+21 38 30	188.9466	0.8873	G188.946+0.887	G188.95+0.89	38.4 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
117	06 12 54.5	+17 59 20	192.6020	-0.0468	G192.599-0.048	G192.600-0.048	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
118	06 07 48	-06 22 57	213.7053	-12.5965	G213.705-12.597	G213.71-12.60	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
119	07 44 51.9	-24 07 42	240.3156	0.0710	G240.316+0.071	G240.316+0.071	38.4 GHz (II);	1.300	73	+H₂O -CH₃OH II +OH	SFR
120	12 34 53.4	-61 39 40	300.9691	1.1476	G300.969+1.148	G300.969+1.148	38.4 GHz (II);	1.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
121	13 50 41.8	-61 35 10	309.9206	0.4789	G309.921+0.479	G309.921+0.479	38.4 GHz (II);	1.500	73	-H₂O +CH₃OH II +OH	SFR
122	13 51 58.5	-61 15 40	310.1441	0.7601	G310.144+0.760	G310.144+0.760	38.4 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
123	14 06 38.8	-61 58 23	311.6428	-0.3800	G311.643-0.380	G311.643-0.380	38.4 GHz (II);	1.500	73	+H₂O +CH₃OH II +OH	SFR_MIXED
124	15 00 55.4	-58 58 53	318.9478	-0.1962	G318.948-0.196	G318.948-0.196	38.4 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
125	15 29 19.4	-56 31 20	323.4594	-0.0783	G323.459-0.079	G323.459-0.079	38.4 GHz (II);	1.600	73	-H₂O +CH₃OH II +OH	SFR
126	15 31 45.6	-56 30 50	323.7404	-0.2628	G323.740-0.263	G323.740-0.263	38.4 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
127	15 47 32.8	-53 52 38	327.1198	0.5108	G327.120+0.511	G327.120+0.511	38.4 GHz (II);	0.400	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
128	15 57 58.3	-53 59 22	328.2367	-0.5472	G328.237-0.547	G328.237-0.547	38.4 GHz (II);	1.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
129	15 54 6.5	-53 11 40	328.3074	0.4304	G328.307+0.430	G328.307+0.430	38.4 GHz (II);	1.400	73	+H₂O -CH₃OH II +OH	SFR_MIXED
130	15 55 48.5	-52 43 07	328.8084	0.6329	G328.809+0.633	G328.808+0.633	38.4 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
131	16 09 52.8	-51 54 56	330.9538	-0.1827	G330.954-0.182	G330.953-0.182	38.4 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
132	16 12 9.1	-51 25 48	331.5424	-0.0667	G331.543-0.066	G331.542-0.066	38.4 GHz (II);	0.800	73	-H₂O +CH₃OH I +CH₃OH II +OH	SFR
133	16 35 9.3	-48 46 47	336.0181	-0.8272	G336.018-0.826	G336.018-0.827	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
134	16 38 29.7	-47 00 35	337.7055	-0.0531	G337.705-0.053	G337.705-0.053	38.4 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
135	16 38 50.4	-47 28 03	337.4037	-0.4022	G337.404-0.402	G337.404-0.402	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
136	16 39 39	-46 41 28	338.0747	0.0119	G338.075+0.012	G338.075+0.012	38.4 GHz (II);	0.500	73	+H₂O +CH₃OH II +OH	SFR_MIXED
137	16 48 13.9	-45 21 44	340.0543	-0.2437	G340.054-0.244	G340.054-0.244	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
138	16 50 14.8	-44 42 25	340.7852	-0.0956	G340.785-0.096	G340.785-0.096	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
139	16 52 4.8	-46 08 34	339.8843	-1.2590	G339.884-1.259	G339.884-1.259	38.4 GHz (II);	0.800	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
140	17 00 10.9	-42 07 19	343.9295	0.1250	G343.929+0.125	G343.929+0.125	38.4 GHz (II);	0.500	73	-H₂O +CH₃OH II +OH	SFR
141	17 04 22.8	-40 44 21	345.5047	0.3487	G345.505+0.348	G345.504+0.348	38.4 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
142	17 05 10.9	-41 29 06	345.0030	-0.2235	G345.003-0.223	G345.003-0.223	38.4 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
143	17 11 50.9	-39 09 30	347.6277	0.1484	G347.628+0.148	G347.628+0.148	38.4 GHz (II);	0.500	73	+H₂O +CH₃OH II +OH	SFR
144	17 19 20.4	-39 03 52	348.5497	-0.9789	G348.550-0.979	G348.550-0.979	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
145	17 20 4.1	-38 58 30	348.7040	-1.0436	G348.720-1.039	G348.703-1.043	38.4 GHz (II);	0.700	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
146	17 26 42.7	-36 09 16	351.7752	-0.5366	G351.775-0.537	G351.775-0.536	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
147	17 25 25.2	-36 12 46	351.5811	-0.3532	G351.581-0.353	G351.581-0.353	38.4 GHz (II);	0.500	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
148	17 30 26.2	-34 41 45	353.4100	-0.3601	G353.410-0.360	G353.410-0.360	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
149	17 31 15.5	-33 14 05	354.7244	0.3003	G354.724+0.300	G354.724+0.300	38.4 GHz (II);	1.500	73	+H₂O +CH₃OH II +OH	SFR
150	17 33 29	-32 47 59	355.3436	0.1474	G355.344+0.148	G355.344+0.147	38.4 GHz (II);	1.300	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
151	17 54 38.8	-25 34 42	3.9112	0.0015	G3.910+0.001	G3.910+0.001	38.4 GHz (II);	0.700	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
152	18 00 30.4	-24 04 03	5.8848	-0.3925	G5.885-0.392	G5.885-0.392	38.4 GHz (II);	0.900	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
153	18 06 19	-21 37 32	8.6693	-0.3559	G8.669-0.357	G8.669-0.356	38.4 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
154	18 06 14.8	-20 31 32	9.6214	0.1953	G9.621+0.195	G9.621+0.196	38.4 GHz (II);	0.600	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
155	18 06 14.8	-20 31 40	9.6194	0.1942	G9.621+0.195	G9.621+0.196	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
156	18 10 28.7	-19 55 49	10.6236	-0.3837	G10.623-0.383	G10.623-0.384	38.4 GHz (II);	1.100	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED
157	18 12 11.5	-18 41 28	11.9043	-0.1412	G11.904-0.141	G11.904-0.141	38.4 GHz (II);	1.200	73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR_MIXED
158	18 14 39.5	-17 52 00	12.9085	-0.2602	G12.908-0.260	G12.909-0.260	38.4 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
159	18 20 24.8	-16 11 34	15.0348	-0.6770	G15.033-0.674	G15.034-0.677	38.4 GHz (II);	1.200	73	+H₂O +CH₃OH I +CH₃OH II +OH	GALAXY
160	18 27 43.9	-11 15 04	20.2333	0.0666	G20.237+0.065	G20.23+0.07	38.4 GHz (II);		73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
161	18 34 39.2	-08 31 24	23.4402	-0.1822	G23.437-0.184	G23.440-0.182	38.4 GHz (II);	0.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
162	18 34 39	-08 31 36	23.4369	-0.1830	G23.437-0.184		38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
163	18 34 40.4	-09 00 37	23.0103	-0.4109	G23.010-0.411	G23.010-0.411	38.4 GHz (II);	0.300	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
164	18 34 39.9	-09 00 44	23.0076	-0.4099	G23.010-0.411		38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
165	18 34 19.7	-05 59 44	25.6469	1.0537	G25.649+1.050	G25.65+1.05	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
166	18 38 3.1	-06 24 15	25.7094	0.0440	G25.709+0.044	G25.709+0.044	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
167	18 42 58.2	-04 13 56	28.2009	-0.0495	G28.200-0.050	G28.201-0.049	38.4 GHz (II);	1.400	73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
168	18 42 58	-04 14 01	28.1993	-0.0494	G28.200-0.050		38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
169	18 46 3.6	-02 39 24	29.9547	-0.0158	G29.956-0.016	G29.950-0.020	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED
170	18 49 38.5	-00 45 29	32.0525	0.0540	G32.045+0.059	G32.03+0.05	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR
171	18 53 28.7	+00 31 58	33.6387	-0.2110	G33.641-0.228	G33.640-0.210	38.4 GHz (II);		73	+H₂O -CH₃OH I +CH₃OH II +OH	SFR
172	18 54 17.2	+04 41 09	37.4274	1.5028	G37.427+1.518	G37.43+1.50	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II	SFR
173	18 58 13	+01 40 33	35.1963	-0.7434	G35.197-0.743	G35.20-0.74	38.4 GHz (II);		73	+H₂O +CH₃OH I +CH₃OH II +OH	SFR

Distribution of sources in all sky (l,b)

Distribution of sources in all sky using Aladin

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Distribution of sources in IRAS color-color diagram

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Original color diagram is taken form van der Veen & Habing (1987)

Type	Description
I	Oxygen-rich non-variable stars without circumstellar shells
II	Variable stars with "young" O-rich circumstellar shells
IIIa	Variable stars with more evolved O-rich circumstellar shells
IIIb	Variable stars with thick O-rich circumstellar shells
IV	Variable stars with very thick O-rich circumstellar shells
V	Planetary nebulae and non- variable stars with very cool circumstellar shells
VIa	Variable stars with relatively cold dust at large distances; a significant part of the stars is carbon-rich
VIb	Variable stars with relatively hot dust close to the star and relatively cold dust at large distances; Some of the objects have proven to be O-rich
VII	Variable stars with more evolved C-rich circumstellar shells
VIII	Different sort of objects

Distribution of the detection velocities versus galactic longitude from ELL11B

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