2007A&A...465..865E

Query : 2007A&A...465..865E

2007A&A...465..865E - Astronomy and Astrophysics, volume 465, 865-877 (2007/4-3)

A survey of OH masers towards high mass protostellar objects.

EDRIS K.A., FULLER G.A. and COHEN R.J.

Abstract (from CDS):

Masers are important tracers of the early evolution of young high mass stars, but the relationship between different types of maser and the evolutionary state of the exciting source remains unclear. To determine whether OH masers are common towards candidate high mass protostellar objects.We present a survey of OH maser emission towards a sample of high mass protostellar objects made using the Nancay and GBT telescopes.OH maser emission was detected towards 63 objects with 36 new detections. There are 56 star-forming regions and 7 OH/IR candidates. Nearly half of the detected sources have OH flux densities ≲1Jy. There is no evidence that sources with OH masers have a different range of luminosities from the non-maser sources. The results of this survey are compared with previous H₂O and class II CH₃OH maser observations of the same objects. Some of the detected sources are only associated with OH masers and some sources are only associated with the 1720 MHz OH maser line. The velocity range of the maser emission suggests that the water maser sources may be divided into two groups. The detection rates and velocity range of the OH and Class II CH₃OH masers support the idea that there is a spatial association of the OH and Class II CH₃OH masers. The sources span a wide range in R, the ratio of the methanol maser peak flux to OH 1665 MHz maser peak flux, however there are only a few sources with intermediate values of R, 8<R<32, which has characterised previous samples. The majority of the sources are either methanol-favoured or OH-favoured. Sources which have masers of any species, OH, water or methanol, have redder [100µm-12µm] IRAS colours than those without masers. However, there is no evidence for different maser species tracing different stages in the evolution of these young high mass sources.The detection of OH masers towards 26% of a sample of 217 sources should remove any doubt about the existence of OH maser emission towards these objects or this early evolutionary stage. Previous observations which have shown that the OH maser emission from similar sources traces the circumstellar disks around the objects. This combined with the sensitivity of the OH emission to the magnetic field, make the newly detected sources interesting candidates for future follow-up at high angular resolution.

Abstract Copyright: ∼

Journal keyword(s): masers - stars: formation - ISM: molecules - ISM: HII regions

VizieR on-line data: <Data which should be available at CDS were never supplied by the authors>

Simbad objects: 230

Full paper

View the references in ADS

Number of rows : 230

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	IRAS 00070+6503	*	00 09 40.9442347800	+65 19 54.290610516						~	17	0
2	IRAS 00117+6412	HII	00 14 26.61	+64 28 30.3						~	38	0
3	IRAS 00420+5530	Y*?	00 44 57.31	+55 47 18.1						~	58	0
4	IRAS 01420+6401	HII	01 45 40.16013	+64 16 09.0770						~	27	1
5	IRAS 03211+5446	HII	03 24 59.1	+54 57 25						~	27	0
6	IRAS 04034+5116	Y*O	04 07 10.99176	+51 24 41.1012						~	18	1
7	IRAS 04579+4703	Y*O	05 01 39.661	+47 07 21.92						~	49	0
8	IRAS 05137+3919	Cld	05 17 13.3	+39 22 14						~	61	0
9	IRAS 05168+3634	mul	05 20 16.2	+36 37 21						~	46	0
10	GAL 174.20-00.08	Cld	05 30 45.9	+33 47 56						~	201	2
11	NGC 1985	RNe	05 37 47.8	+31 59 24						~	134	2
12	IRAS 05358+3543	HII	05 39 09.8	+35 45 17						~	161	0
13	SH 2-231	Y*O	05 39 13.2	+35 45 48						~	131	0
14	IRAS 05373+2349	Y*O	05 40 24.2280641304	+23 50 54.705306336						~	58	1
15	Mol 12	Rad	05 40 24.4	+23 50 54						~	49	0
16	RAFGL 5165	IR	05 41 37.4	+35 48 49						~	19	0
17	IRAS 05490+2658	Y*O	05 52 12.9	+26 59 33						~	49	0
18	GAL 192.16-03.82	HII	05 58 13.4	+16 32 00						~	140	1
19	RAFGL 6366S	HII	06 08 41.0	+21 31 01						~	87	0
20	IRAS 06061+2151	SFR	06 09 07.8	+21 50 39						~	83	0
21	IRAS 06063+2040	HII	06 09 21	+20 39.4						~	41	0
22	RAFGL 5184	IR	06 09 51.7	+20 30 04						~	38	0
23	RAFGL 5186	HII	06 13 16.34	+15 22 42.2						~	26	1
24	IRAS 06104+1524A	HII	06 13 21.40	+15 23 57.2						~	20	0
25	IRAS 06105+1756	HII	06 13 28.33753	+17 55 33.0170						~	29	0
26	IRAS 06155+2319A	HII	06 18 35.2	+23 18 11						~	27	0
27	IRAS 06291+0421	IR	06 31 48.48	+04 19 30.7						~	27	1
28	NGC 2245	RNe	06 32 41.3	+10 09 34		11				A0	57	0
29	NGC 2247	RNe	06 33 04.4	+10 19 21		8.5				~	66	0
30	IRAS 06308+0402	Y*O	06 33 31.1	+04 00 07						~	47	1
31	IRAS 06382+0939	Y*O	06 41 02.81160	+09 36 16.1712					19.89	~	87	0
32	IRAS 06584-0852	Y*O	07 00 50.94192	-08 56 30.1812						~	36	0
33	GAL 359.977+00.168	Y*O	17 44 53.4	-28 52 20						~	23	0
34	IRAS 17450-2742	IR	17 48 10	-27 43.2						~	16	0
35	IRAS 17495-2624	IR	17 52 41.9	-26 25 32						~	9	0
36	IRAS 17504-2519	Y*O	17 53 33.7425042749	-25 19 50.366208103						~	12	0
37	IRAS 17527-2439	HII	17 55 49.1	-24 40 20						~	17	0
38	IRAS 17571-2328	MIR	18 00 15.76368	-23 28 53.5476						~	9	0
39	IRAS 17582-2234	Y*O	18 01 18.52464	-22 34 57.5364						~	15	0
40	IRAS 18014-2428	IR	18 04 29.6	-24 28 47						~	14	0
41	RAFGL 2059	Y*O	18 04 53.1586569336	-24 26 41.642012796	19.905	21.910	18.914		14.078	~	143	0
42	IRAS 18024-2119	IR	18 05 25.4	-21 19 41						~	16	0
43	IRAS 18024-2231	IR	18 05 30.6	-22 31 36						~	9	0
44	ISOGAL-P J180658.0-205150	AB*	18 06 57.95832	-20 51 49.9608						O-rich	10	0
45	IRAS 18048-2019	HII	18 07 51.6	-20 18 36						~	19	1
46	[WBH98] 18048-2019	HII	18 07 51.7	-20 18 35						~	17	0
47	GAL 012.89+00.49	HII	18 11 51.3	-17 31 29						~	175	0
48	OH 012.03-00.04	Y*O	18 12 01.8400	-18 31 55.800						~	78	0
49	IRAS 18102-1800	HII	18 13 12.2	-17 59 35						~	23	0
50	IRAS 18123-1203	HII	18 15 07.3	-12 02 42						~	14	0
51	IRAS 18134-1942	HII	18 16 22.1327	-19 41 27.219						~	56	0
52	IRAS 18144-1723	IR	18 17 24.4	-17 22 13						~	34	0
53	IRAS 18151-1208	Y*O	18 17 58.1254	-12 07 24.893						~	104	0
54	IRAS 18156-1343	IR	18 18 28.6	-13 42 22						~	8	0
55	IRAS 18159-1550	HII	18 18 47.30	-15 48 57.9						~	26	0
56	GAL 014.33-00.64	HII	18 18 53.5	-16 47 39						~	64	0
57	AGAL G014.891-00.404	Y*O	18 19 07.4495	-16 11 34.047						~	38	0
58	IRAS 18167-1614	LP?	18 19 43.1791079424	-16 13 10.344984960						~	8	0
59	IRAS 18172-1548	IR	18 20.1	-15 47						~	4	0
60	EGO G016.59-0.05	HII	18 21 07.9	-14 31 53						~	115	0
61	OH 016.59-00.05	Mas	18 21 09.0840	-14 31 48.556						~	79	0
62	IRAS 18197-1351	IR	18 22 36.8	-13 50 11						~	10	0
63	IRAS 18212-1320	IR	18 24 04.7	-13 19 16						~	11	0
64	IRAS 18223-1243	Y*O	18 25 10.9307288448	-12 42 15.754722912						~	60	1
65	GAL 019.36-00.02	HII	18 26 24.3	-12 03 47						~	31	0
66	MMB G019.755-00.128	Y*O	18 27 31.66	-11 45 55.0						~	49	0
67	IRAS 18256-0742	IR	18 28 20.5	-07 40 22						~	13	0
68	IRAS 18258-0737	HII	18 28 34.1	-07 35 31						~	16	0
69	MMB G019.884-00.534	cor	18 29 14.37	-11 50 23.0						~	102	1
70	[BNM96] 019.605-0.902	HII	18 30 02.7	-12 15 27						~	16	0
71	IRAS 18272-1217	Y*O	18 30 02.77248	-12 15 22.4172						~	18	0
72	JCMTSF J183035.5-100709	Rad	18 30 36	-10 07.2						~	22	0
73	IRAS 18288-0158	IR	18 31 26.7	-01 56 35						~	7	1
74	GAL 022.357+00.066	HII	18 31 44.9	-09 22 09						~	44	0
75	AGAL G023.264+00.077	cor	18 33 24.00	-08 33 31.0						~	40	0
76	IRAS 18308-0841	HII	18 33 32.89	-08 39 18.5						~	32	0
77	IRAS 18310-0825	HII	18 33 47.9	-08 23 52						~	31	0
78	V* V481 Sct	s*b	18 33 55.2781965336	-06 58 38.631350604						LBV_B[e]:	48	0
79	RAFGL 7009S	HII	18 34 20.911	-05 59 42.23						~	209	0
80	IRAS 18317-0513	HII	18 34 25.62000	-05 10 50.3400						~	28	0
81	RAFGL 5515	HII	18 36 29.0	-07 40 33						~	30	0
82	IRAS 18345-0641	cor	18 37 17.4520	-06 38 30.992						~	46	0
83	IRAS 18348-0616	Y*O	18 37 30.420	-06 14 14.49		17.34	16.14	14.80		~	35	0
84	IRAS 18355-0550	IR	18 38 13.6	-05 48 17						~	5	0
85	IRAS 18360-0537	HII	18 38 40.3	-05 35 06						~	22	0
86	IRAS 18363-0554	Rad	18 39 03.7	-05 52 15						~	9	0
87	[AAJ2015] G026.594-00.026	HII	18 39 55.9	-05 38 45						~	31	1
88	AGAL G027.184-00.081	cor	18 41 13.26	-05 08 57.9						~	56	0
89	IRAS 18396-0431	Rad	18 42 18.8	-04 28 37						~	13	0
90	IRAS 18408-0348	HII	18 43 31.1	-03 44 57						~	16	0
91	IRAS 18424-0329	Rad	18 45 03.3	-03 26 49						~	11	0
92	AGAL G030.423+00.466	cor	18 45 12.8	-02 01 12						~	30	0
93	IRAS 18431-0312	HII	18 45 45.5	-03 09 21						~	20	0
94	IRAS 18437-0216	HII	18 46 22.7	-02 13 24						~	19	0
95	IRAS 18440-0148	cor	18 46 36.56	-01 45 21.2						~	58	0
96	IRAS 18445-0222	HII	18 47 10.6	-02 19 08						~	28	0
97	IRAS 18447-0229	HII	18 47 23.7	-02 25 55						~	22	0
98	IRAS 18454-0158	HII	18 48 01.3	-01 54 49						~	15	0
99	AGAL G031.158+00.047	cor	18 48 02.46	-01 33 26.5						~	39	0
100	AGAL G029.886-00.781	Y*O	18 48 40	-03 03.9						~	30	0
101	IRAS 18463+0053	OH*	18 48 51.07320	+00 57 28.2996						O-rich	2	0
102	IRAS 18470-0044	cor	18 49 37.81	-00 41 01.1						~	30	0
103	IRAS 18472-0022	HII	18 49 50.7	-00 19 09						~	17	0
104	IRAS 18488+0000	IR	18 51 24.8	+00 04 19						~	31	0
105	GAL 034.4+00.23	HII	18 53 17.4	+01 24 55						~	82	1
106	AGAL G034.411+00.234	Y*O	18 53 18.0319	+01 25 25.500						~	88	0
107	MSXDC G034.43+0.24	MoC	18 53 18.9	+01 26 39						~	98	0
108	RAFGL 5542	Y*O	18 53 37.88832	+01 50 30.5844						~	67	0
109	IRAS 18517+0437	SFR	18 54 13.8	+04 41 32						~	70	0
110	AGAL G034.757+00.024	cor	18 54 40.76	+01 38 05.0						~	35	0
111	[ERG2015] 6375	smm	18 55 16.5	+03 05 07						~	25	0
112	IRAS 18530+0215	cor	18 55 33.7	+02 19 09						~	39	0
113	IRAS 18532+0047	Rad	18 55 50.6	+00 51 22						~	17	0
114	IRAS 18537+0145	IR	18 56 15.0	+01 49 03						~	8	0
115	IRAS 18540+0220	HII	18 56 35.6	+02 24 54						~	15	0
116	IRAS 18544+0112	HII	18 56 59.8	+01 16 20						~	10	0
117	IRAS 18551+0302	bub	18 57 42.1	+03 06 04						~	20	1
118	IRAS 18553+0414	cor	18 57 53.37	+04 18 15.7						~	31	0
119	IRAS 18565+0349	Rad	18 59 03.4	+03 53 22						~	15	0
120	IRAS 18566+0408	Y*O	18 59 09.95520	+04 12 15.6240						~	130	0
121	AGAL G040.121+01.500	HII	18 59 14	+07 04.9		13.60	12.74			~	32	0
122	IRAS 18571+0349	Rad	18 59 40.0	+03 53 35						~	14	0
123	IRAS 18571+0326	IR	18 59 40.2	+03 30 29						~	7	0
124	IRAS 18586+0106	Rad	19 01 10.6	+01 11 16						~	18	0
125	IRAS 18596+0536	HII	19 02 06.5	+05 40 33						~	9	0
126	IRAS 19001+0402	HII	19 02 36.2	+04 06 58						~	9	0
127	HRDS G038.643-00.227	bub	19 02 40.4	+04 58 13						~	17	0
128	IRAS 19012+0505	mul	19 03 43.5	+05 09 49						~	30	0
129	AGAL G039.388-00.141	cor	19 03 45	+05 40.7						~	53	1
130	[CPA2006] N75	bub	19 03 47.1	+05 09 27						~	40	0
131	IRAS 19023+0538	IR	19 04 49.0	+05 42 40						~	6	0
132	IRAS 19035+0641	Y*O	19 06 01.6288	+06 46 36.140						~	70	0
133	IRAS 19043+0726	Rad	19 06 47.7	+07 31 38						~	15	0
134	IRAS 19045+0518	Y*O	19 06 59.71488	+05 22 55.3152						~	15	0
135	[BNM96] 042.096+0.354	Y*O	19 07 00.527	+08 18 44.48						~	16	0
136	IRAS 19074+0752	cor	19 09 53.55	+07 57 14.8						~	37	0
137	IRAS 19077+0839	Cld	19 10 09.6	+08 44 11						~	10	0
138	IRAS 19088+0902	Rad	19 11 15.9	+09 07 27						~	21	0
139	IRAS 19092+0841	Rad	19 11 37.4	+08 46 30						~	28	0
140	IRAS 19094+0944	mul	19 11 52.0	+09 49 46						~	17	0
141	IRAS 19118+0945	MIR	19 14 14.90664	+09 50 43.5156						~	17	0
142	IRAS 19175+1357	cor	19 19 49.22	+14 02 46.8						~	27	0
143	IRAS 19183+1556	IR	19 20 38.60	+16 02 32.0						~	7	1
144	IRAS 19198+1423	HII	19 22 07.844	+14 29 19.72						~	12	0
145	2MASS J19233684+1728589	Y*O	19 23 36.8145280608	+17 28 58.953209844						~	48	0
146	W 51	SNR	19 23 50	+14 06.0						~	1260	1
147	IRAS 19217+1651	cor	19 23 58.77	+16 57 44.8						~	33	0
148	AGAL G049.669-00.457	Y*O	19 24 20	+14 38.0						~	37	0
149	AGAL G053.037+00.112	cor	19 28 55.5	+17 52 00						~	46	0
150	IRAS 19282+1814	HII	19 30 28.1	+18 20 53						~	37	0
151	IRAS 19295+1637	Cld	19 31 50.9	+16 43 29						~	8	0
152	IRAS 19332+2028	HII	19 35 26.4	+20 35 01						~	14	1
153	IRAS 19343+2026	MIR	19 36 31.05216	+20 33 09.2196						~	18	1
154	IRAS 19368+2239	HII	19 38 57.0	+22 46 27						~	19	0
155	MSX6C G059.6032+00.9116	HII	19 39 34.8	+23 59 51						~	21	0
156	IRAS 19388+2357	Y*O	19 40 59.1	+24 04 46						~	28	0
157	NGC 6820	GNe	19 42 27.930	+23 05 14.75				14.56		~	49	0
158	MSX6C G059.7831+00.0648	Y*O	19 43 11.2464	+23 44 03.270						~	136	0
159	IRAS 19410+2336	SFR	19 43 11.5	+23 44 06						~	152	0
160	IRAS 19411+2306	cor	19 43 17.9613824400	+23 14 01.619818008						~	44	0
161	MSX6C G059.7654-00.0269	HII	19 43 29.8	+23 40 25						~	25	0
162	IRAS 19458+2442	IR	19 48 00.10	+24 50 18.6						~	11	1
163	[BNM96] 063.125+0.443	HII	19 49 09.3798758496	+26 49 08.186732688						~	22	0
164	IRAS 19542+3004	IR	19 56 13.2	+30 12 56						~	6	0
165	IRAS 20028+2903	HII	20 04 52.77168	+29 11 40.1028						~	20	0
166	IRAS 20051+3435	*	20 07 04.5	+34 44 45						~	30	0
167	IRAS 20050+2720	Y*O	20 07 06.549	+27 28 49.10						~	105	0
168	NAME IRAS 20050+2720 Cluster	Cl*	20 07 06.7	+27 28 53						~	83	0
169	IRAS 20056+3350	Mas	20 07 31.5	+33 59 39						~	28	0
170	IRAS 20062+3550	HII	20 08 09.8	+35 59 20						~	20	0
171	IRAS 20081+2720	HII	20 10 11.5	+27 29 06						~	40	0
172	IRAS 20099+3640	IR	20 11 46.3969271064	+36 49 35.253504336						~	16	0
173	IRAS 20106+3545	IR	20 12 31.3	+35 54 46						~	16	0
174	IRAS 20126+4104	Y*O	20 14 25.8816769656	+41 13 36.879427236						B2.5-B0.5	431	0
175	IRAS 20180+3558	IR	20 19 58.0	+36 07 37						~	10	0
176	LBN 077.61+01.59	HII	20 20 39.3	+39 37 52						~	76	0
177	IRAS 20205+3948	Y*O	20 22 21.9	+39 58 05						~	28	0
178	CPM 35	cor	20 23 23.855	+41 17 40.49						~	56	0
179	IRAS 20217+3947	*	20 23 32.2802944368	+39 57 24.820192908						~	11	0
180	IRAS 20220+3728	Y*O	20 23 55.2	+37 38 12						~	48	3
181	IRAS 20227+4154	HII	20 24 31.4	+42 04 17						~	30	0
182	IRAS 20278+3521	IR	20 29 46.8321719328	+35 31 42.045300408						~	17	0
183	MITG J203029+4115	mul	20 30 29.9	+41 15 51						~	51	1
184	IRAS 20293+4007	Cld	20 31 07.9	+40 17 23						~	9	0
185	IRAS 20293+3952	HII	20 31 11.040	+40 03 10.69						~	73	0
186	IRAS 20319+3958	HII	20 33 49.24632	+40 08 44.1924						~	43	1
187	ECX6-27	HII	20 33 55.7	+41 22 46						~	25	1
188	IRAS 20332+4124	HII	20 35 00.5	+41 34 48						~	37	0
189	IRAS 20333+4102	Cld	20 35 09.5	+41 13 18						~	29	0
190	IRAS 20343+4129	HII	20 36 07.1	+41 40 01						~	54	0
191	IRAS 20406+4555	IR	20 42 21.77	+46 05 53.3						~	15	0
192	IRAS 20444+4629	MoC	20 45 59.64	+46 40 06.2						~	23	0
193	IRAS 21046+5110	IR	21 06 16.3	+51 22 13						~	15	0
194	IRAS 21078+5211	HII	21 09 31.03	+52 24 16.1						~	50	0
195	IRAS 21080+4758	Y*O	21 09 45.87672	+48 10 58.9116						~	14	0
196	IRAS 21202+5157	HII	21 21 53.577	+52 10 47.30						~	24	0
197	IRAS 21307+5049	Y*O	21 32 30.59280	+51 02 16.0368						~	43	0
198	PN K 4-45	Y*O	21 35 21.061	+53 47 11.21						~	55	2
199	[BGE2002] BIMA 2	Y*O	21 40 42.36	+58 16 09.7						~	118	0
200	NAME IC 1396 North	CGb	21 40 42.6537	+58 16 01.882						~	189	1
201	IRAS 21519+5613	HII	21 53 38.8	+56 27 53						~	37	0
202	IRAS 21526+5728	HII	21 54 18.4	+57 42 51						~	17	0
203	IRAS 21548+5747	IR	21 56 29.7	+58 01 35						~	13	0
204	IRAS 22134+5834	Y*O	22 15 09.02616	+58 49 08.8608						~	71	0
205	IRAS 22147+5948	MIR	22 16 29.32512	+60 03 31.0824						~	19	0
206	LBN 102.79-00.92	HII	22 19 09.0	+56 04 45						~	103	0
207	IRAS 22172+5549	Y*O	22 19 09.14787	+56 05 00.0380						~	104	0
208	IRAS 22187+5559	IR	22 20 34.9	+56 14 39						~	15	0
209	LDN 1204A	HII	22 21 26.68	+63 51 38.2						~	107	0
210	IRAS 22267+6244	HII	22 28 29.3	+62 59 44						~	28	0
211	IRAS 22272+6358A	Cld	22 28 52.2	+64 13 43						~	51	0
212	IRAS 22305+5803	Y*O	22 32 23.972	+58 18 57.91						~	37	0
213	IRAS 22344+5909	MIR	22 36 20.53128	+59 24 54.7992						~	10	0
214	BD+57 2615	Be*	22 47 49.5706150416	+58 08 49.516370232		10.44	10.14			B1-3Ve	69	0
215	IRAS 22506+5944	Y*O	22 52 38.09760	+60 01 01.1928						~	57	0
216	IRAS 22551+6221	HII	22 57 05.2	+62 37 44						~	39	0
217	[BNM96] 109.098-0.346	HII	22 59 05.5344256224	+59 28 23.280817692						~	44	0
218	IRAS 23026+5948	IR	23 04 45.4557529824	+60 04 37.582742172						~	21	0
219	IRAS 23033+5951	Y*O	23 05 25.1762883456	+60 08 15.374293800						~	91	0
220	IRAS 23139+5939	Y*O	23 16 10.3420	+59 55 28.596						~	94	0
221	IRAS 23140+6121	IR	23 16 11.7	+61 37 45						~	33	0
222	IRAS 23146+5954	IR	23 16 48.9	+60 10 46						~	18	0
223	IRAS 23151+5912	HII	23 17 21.0	+59 28 49						~	96	0
224	EM* MWC 1080	Ae*	23 17 25.5895018656	+60 50 43.444557384		13.24	11.542			B0eq	320	0
225	IRAS 23314+6033	HII	23 33 43.8650890512	+60 50 26.959478136						~	28	0
226	IRAS 23330+6437	IR	23 35 23.4690987192	+64 54 29.223307296						~	10	0
227	Mol 160	Rad	23 40 54.5	+61 10 28						~	97	0
228	IRAS 23448+6010	SFR	23 47 19.8	+60 27 23						~	17	0
229	IRAS 23507+6230	IR	23 53 12.9	+62 47 00						~	17	0
230	IRAS 23545+6508	*	23 57 05.2	+65 25 11						B	50	0

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