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CAS03 - Spectra of OH masers at 6035 and 6030 MHz

Short title: Caswell (2003)
Authors: Caswell, J. L.
Journal: Monthly Notice of the Royal Astronomical Society, Volume 341, Issue 2, pp. 551-568.
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Target type: High_mass_SFR
Observations category: SF.general
Facility type: single-dish
Transitions: OH_6030,OH_6035

Abstract
The Parkes radio telescope has been used to study circular polarization in the spectra of masers at the 6035- and 6030-MHz transitions of excited OH. The targets were 91 previously catalogued sites of 6035-MHz maser emission. A few were not detected, primarily because of variability. However, the 6035-MHz intensity variations seldom exceed a factor of 2 over several years, with a handful of dramatic exceptions. Towards many targets, the present observations have provided the first high-sensitivity search for the 6030-MHz transition and yielded 33 detections. All of the 6030-MHz maser features have 6035-MHz counterparts closely matching in velocity. For matching features, the 6030-MHz emission is most commonly weaker than the 6035-MHz emission by an order of magnitude but, in a few cases, is several times stronger. The detection statistics are well accounted for by very recent developments in maser modelling. However, the occasional occurrence of 6030-MHz maser emission stronger than at 6035-MHz poses a new challenge for the theory. Spectra with good frequency resolution at 6030 and 6035 MHz yield many valuable measurements of magnetic fields. At each transition, the field can be inferred from a small frequency separation between the right-hand and left-hand circularly polarized features, attributed to the Zeeman effect in a magnetic field of a few mG. In the many instances where a `Zeeman pair' on the 6035-MHz spectrum has features matched by the 6030-MHz spectrum, this provides convincing corroboration of the magnetic field, in both direction and magnitude. Several prominent absorption features occur at 6035 MHz, and usually have matching absorption at 6030 MHz of similar, or slightly smaller, depth.

Abstract

The Parkes radio telescope has been used to study circular polarization in the spectra of masers at the 6035- and 6030-MHz transitions of excited OH. The targets were 91 previously catalogued sites of 6035-MHz maser emission. A few were not detected, primarily because of variability. However, the 6035-MHz intensity variations seldom exceed a factor of 2 over several years, with a handful of dramatic exceptions.

Towards many targets, the present observations have provided the first high-sensitivity search for the 6030-MHz transition and yielded 33 detections. All of the 6030-MHz maser features have 6035-MHz counterparts closely matching in velocity. For matching features, the 6030-MHz emission is most commonly weaker than the 6035-MHz emission by an order of magnitude but, in a few cases, is several times stronger. The detection statistics are well accounted for by very recent developments in maser modelling. However, the occasional occurrence of 6030-MHz maser emission stronger than at 6035-MHz poses a new challenge for the theory.

Spectra with good frequency resolution at 6030 and 6035 MHz yield many valuable measurements of magnetic fields. At each transition, the field can be inferred from a small frequency separation between the right-hand and left-hand circularly polarized features, attributed to the Zeeman effect in a magnetic field of a few mG. In the many instances where a `Zeeman pair' on the 6035-MHz spectrum has features matched by the 6030-MHz spectrum, this provides convincing corroboration of the magnetic field, in both direction and magnitude.

Several prominent absorption features occur at 6035 MHz, and usually have matching absorption at 6030 MHz of similar, or slightly smaller, depth.

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Detection table from Caswell (2003)

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ID	Obs. RA	Obs. Dec	l	b	Group id	grpv	Source name	Image	Descr.	Line	Frequency	V_peak	F_peak	Telescope	V_step	RMS	Beam	Detection	Class	Distance	Dist. (parallax)	Date
	(J2000)	(J2000)	(deg.)	(deg.)						OH	(MHz)	(km/s)	(Jy)		(km/s)	(Jy)	(arcsec)	Yes/No		(kpc)	(kpc)
1	07 44 52	-24 07 42.3	240.3158	0.0712	G240.316+0.071	G240.3158+0.0712	240.316+0.071		Descr	6035 MHz;	6035	63.6	2.2	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR_MIXED	6.200		2001 May 1-3, Sep 1-2
	07 44 52	-24 07 42.3	240.3158	0.0712	G240.316+0.071	G240.3158+0.0712	240.316+0.071		Descr	6035 MHz;	6035	63.6	2.2	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR_MIXED	6.200		2001 May 1-3, Sep 1-2
3	10 24 10.7	-57 52 34	284.3505	-0.4182	G284.351-0.418	G284.3505-0.4182	284.351-0.418	Image	Descr	6035 MHz;	6035	4.7	2.7	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	5.800		2001 May 1-3, Sep 1-2
	10 24 10.7	-57 52 34	284.3505	-0.4182	G284.351-0.418	G284.3505-0.4182	284.351-0.418	Image	Descr	6035 MHz;	6035	4.7	2.7	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	5.800		2001 May 1-3, Sep 1-2
5	11 35 32.2	-63 14 43	294.5114	-1.6212	G294.511-1.621	G294.5114-1.6212	294.511-1.621		Descr	6035 MHz;	6035	-12	7.6	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	2.000		2001 May 1-3, Sep 1-2
	11 35 32.2	-63 14 43	294.5114	-1.6212	G294.511-1.621	G294.5114-1.6212	294.511-1.621		Descr	6035 MHz;	6035	-12	7.6	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	2.000		2001 May 1-3, Sep 1-2
7	12 34 53.3	-61 39 39.9	300.9688	1.1476	G300.969+1.148	G300.9688+1.1476	300.969+1.148	Image	Descr	6035 MHz;	6035	-37.8	4.7	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	5.100		2001 May 1-3, Sep 1-2
	12 34 53.3	-61 39 39.9	300.9688	1.1476	G300.969+1.148	G300.9688+1.1476	300.969+1.148	Image	Descr	6035 MHz;	6035	-37.8	4.7	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	5.100		2001 May 1-3, Sep 1-2
9	13 21 23	-63 00 29.3	306.3221	-0.3337	G306.322-0.334	G306.3221-0.3337	306.322-0.334		Descr	6035 MHz;	6035	-23.5	0.14	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	1.700		2001 May 1-3, Sep 1-2
	13 21 23	-63 00 29.3	306.3221	-0.3337	G306.322-0.334	G306.3221-0.3337	306.322-0.334		Descr	6035 MHz;	6035	-23.5	0.14	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	1.700		2001 May 1-3, Sep 1-2
11	13 50 41.8	-61 35 10.1	309.9205	0.4789	G309.921+0.479	G309.9205+0.4789	309.921+0.479	Image	Descr	6035 MHz;	6035	-59.7	11.8	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	6.400		2001 May 1-3, Sep 1-2
	13 50 41.8	-61 35 10.1	309.9205	0.4789	G309.921+0.479	G309.9205+0.4789	309.921+0.479	Image	Descr	6035 MHz;	6035	-59.7	11.8	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	6.400		2001 May 1-3, Sep 1-2
13	14 44 56.2	-59 48 0.7	316.7624	-0.0115	G316.763-0.012	G316.7627-0.0117	316.762-0.012		Descr	6035 MHz;	6035	-37.5	0.19	PRS	0.07	0.050	216	+H₂O +CH₃OH I +OH	SFR	2.500		2001 May 1-3, Sep 1-2
	14 44 56.2	-59 48 0.7	316.7624	-0.0115	G316.763-0.012	G316.7627-0.0117	316.762-0.012		Descr	6035 MHz;	6035	-37.5	0.19	PRS	0.07	0.050	216	+H₂O +CH₃OH I +OH	SFR	2.500		2001 May 1-3, Sep 1-2
15	15 03 17.4	-58 36 13.3	319.3982	-0.0123	G319.398-0.012	G319.3983-0.0120	319.398-0.012		Descr	6035 MHz;	6035	-12.7	0.15	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR	0.900		2001 May 1-3, Sep 1-2
	15 03 17.4	-58 36 13.3	319.3982	-0.0123	G319.398-0.012	G319.3983-0.0120	319.398-0.012		Descr	6035 MHz;	6035	-12.7	0.15	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR	0.900		2001 May 1-3, Sep 1-2
17	15 29 19.3	-56 31 21.3	323.4591	-0.0785	G323.459-0.079	G323.4591-0.0786	323.459-0.279	Image	Descr	6035 MHz;	6035	-70.2	23.6	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	4.800		2001 May 1-3, Sep 1-2
	15 29 19.3	-56 31 21.3	323.4591	-0.0785	G323.459-0.079	G323.4591-0.0786	323.459-0.279	Image	Descr	6035 MHz;	6035	-70.2	23.6	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	4.800		2001 May 1-3, Sep 1-2
19	15 57 58.3	-53 59 23.2	328.2365	-0.5474	G328.237-0.547	G328.2366-0.5475	328.237-0.547		Descr	6035 MHz;	6035	-41	0.24	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	2.900		2001 May 1-3, Sep 1-2
	15 57 58.3	-53 59 23.2	328.2365	-0.5474	G328.237-0.547	G328.2366-0.5475	328.237-0.547		Descr	6035 MHz;	6035	-41	0.24	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	2.900		2001 May 1-3, Sep 1-2
21	15 54 6.4	-53 11 41.1	328.3070	0.4303	G328.307+0.430	G328.3070+0.4304	328.307+0.430	Image	Descr	6035 MHz;	6035	-90.4	2.4	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR	6.900		2001 May 1-3, Sep 1-2
	15 54 6.4	-53 11 41.1	328.3070	0.4303	G328.307+0.430	G328.3070+0.4304	328.307+0.430	Image	Descr	6035 MHz;	6035	-90.4	2.4	PRS	0.07	0.050	216	+H₂O -CH₃OH II +OH	SFR	6.900		2001 May 1-3, Sep 1-2
23	15 55 48.4	-52 43 6.7	328.8082	0.6331	G328.809+0.633	G328.8087+0.6330	328.808+0.633	Image	Descr	6035 MHz;	6035	-45.7	8.9	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
	15 55 48.4	-52 43 6.7	328.8082	0.6331	G328.809+0.633	G328.8087+0.6330	328.808+0.633	Image	Descr	6035 MHz;	6035	-45.7	8.9	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
25	15 55 48.7	-52 43 5.5	328.8091	0.6328	G328.809+0.633	G328.8087+0.6330	328.809+0.633		Descr	6035 MHz;	6035	-45	1.3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
	15 55 48.7	-52 43 5.5	328.8091	0.6328	G328.809+0.633	G328.8087+0.6330	328.809+0.633		Descr	6035 MHz;	6035	-45	1.3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
27	16 00 33.2	-52 44 39.8	329.3390	0.1481	G329.339+0.148	G329.3389+0.1481	329.339+0.148	Image	Descr	6035 MHz;	6035	-104.2	0.4	PRS	0.07	0.050	216	-H₂O -CH₃OH I +CH₃OH II +OH	SFR	8.600		2001 May 1-3, Sep 1-2
	16 00 33.2	-52 44 39.8	329.3390	0.1481	G329.339+0.148	G329.3389+0.1481	329.339+0.148	Image	Descr	6035 MHz;	6035	-104.2	0.4	PRS	0.07	0.050	216	-H₂O -CH₃OH I +CH₃OH II +OH	SFR	8.600		2001 May 1-3, Sep 1-2
29	16 03 32.1	-53 09 29.9	329.4052	-0.4592	G329.405-0.459	G329.4051-0.4593	329.405-0.459		Descr	6035 MHz;	6035	-68.5	0.15	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	5.000		2001 May 1-3, Sep 1-2
	16 03 32.1	-53 09 29.9	329.4052	-0.4592	G329.405-0.459	G329.4051-0.4593	329.405-0.459		Descr	6035 MHz;	6035	-68.5	0.15	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	5.000		2001 May 1-3, Sep 1-2
31	16 12 9.8	-51 28 37.8	331.5114	-0.1023	G331.512-0.102	G331.5118-0.1025	331.511-0.102	Image	Descr	6035 MHz;	6035	-90	3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	6.800		2001 May 1-3, Sep 1-2
	16 12 9.8	-51 28 37.8	331.5114	-0.1023	G331.512-0.102	G331.5118-0.1025	331.511-0.102	Image	Descr	6035 MHz;	6035	-90	3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	6.800		2001 May 1-3, Sep 1-2
33	16 12 9.9	-51 28 37.1	331.5118	-0.1025	G331.512-0.102	G331.5118-0.1025	331.512-0.103		Descr	6035 MHz;	6035	-86.9	1.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	6.800		2001 May 1-3, Sep 1-2
	16 12 9.9	-51 28 37.1	331.5118	-0.1025	G331.512-0.102	G331.5118-0.1025	331.512-0.103		Descr	6035 MHz;	6035	-86.9	1.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	6.800		2001 May 1-3, Sep 1-2
35	16 12 09	-51 25 47.7	331.5423	-0.0665	G331.542-0.066	G331.5424-0.0665	331.542-0.066	Image	Descr	6035 MHz;	6035	-86	5.1	PRS	0.07	0.050	216	-H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	6.800		2001 May 1-3, Sep 1-2
	16 12 09	-51 25 47.7	331.5423	-0.0665	G331.542-0.066	G331.5424-0.0665	331.542-0.066	Image	Descr	6035 MHz;	6035	-86	5.1	PRS	0.07	0.050	216	-H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	6.800		2001 May 1-3, Sep 1-2
37	16 21 2.9	-50 35 10	333.1353	-0.4315	G333.128-0.432	G333.1352-0.4317	333.135-0.431	Image	Descr	6035 MHz;	6035	-51.4	7.3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
	16 21 2.9	-50 35 10	333.1353	-0.4315	G333.128-0.432	G333.1352-0.4317	333.135-0.431	Image	Descr	6035 MHz;	6035	-51.4	7.3	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
39	16 21 2.8	-50 35 12	333.1347	-0.4317	G333.128-0.432	G333.1352-0.4317	333.135-0.431s		Descr	6035 MHz;	6035	-50	1.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
	16 21 2.8	-50 35 12	333.1347	-0.4317	G333.128-0.432	G333.1352-0.4317	333.135-0.431s		Descr	6035 MHz;	6035	-50	1.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
41	16 22 11	-50 05 56.5	333.6076	-0.2147	G333.608-0.215	G333.6077-0.2147	333.608-0.215		Descr	6035 MHz;	6035	-51.6	3.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
	16 22 11	-50 05 56.5	333.6076	-0.2147	G333.608-0.215	G333.6077-0.2147	333.608-0.215		Descr	6035 MHz;	6035	-51.6	3.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +OH	SFR_MIXED	3.800		2001 May 1-3, Sep 1-2
43	16 33 29.2	-48 03 43.7	336.3583	-0.1374	G336.358-0.137	G336.3583-0.1374	336.358-0.137		Descr	6035 MHz;	6035	-75.1	0.3	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	6.300		2001 May 1-3, Sep 1-2
	16 33 29.2	-48 03 43.7	336.3583	-0.1374	G336.358-0.137	G336.3583-0.1374	336.358-0.137		Descr	6035 MHz;	6035	-75.1	0.3	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	6.300		2001 May 1-3, Sep 1-2
45	16 34 38.3	-47 36 32.9	336.8223	0.0278	G336.822+0.028	G336.8223+0.0279	336.822+0.028		Descr	6035 MHz;	6035	-77.4	0.55	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	6.300		2001 May 1-3, Sep 1-2
	16 34 38.3	-47 36 32.9	336.8223	0.0278	G336.822+0.028	G336.8223+0.0279	336.822+0.028		Descr	6035 MHz;	6035	-77.4	0.55	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	6.300		2001 May 1-3, Sep 1-2
47	16 35 55.2	-47 38 45.4	336.9410	-0.1563	G336.941-0.156	G336.9410-0.1563	336.941-0.156	Image	Descr	6035 MHz;	6035	-65.7	1.27	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	UNK	5.200		2001 May 1-3, Sep 1-2
	16 35 55.2	-47 38 45.4	336.9410	-0.1563	G336.941-0.156	G336.9410-0.1563	336.941-0.156	Image	Descr	6035 MHz;	6035	-65.7	1.27	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	UNK	5.200		2001 May 1-3, Sep 1-2
49	16 36 12.4	-47 37 57.8	336.9833	-0.1831	G336.983-0.183	G336.9833-0.1830	336.983-0.183		Descr	6035 MHz;	6035	-76.2	0.23	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	5.400		2001 May 1-3, Sep 1-2
	16 36 12.4	-47 37 57.8	336.9833	-0.1831	G336.983-0.183	G336.9833-0.1830	336.983-0.183		Descr	6035 MHz;	6035	-76.2	0.23	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	5.400		2001 May 1-3, Sep 1-2
51	16 38 9.5	-47 04 59.9	337.6125	-0.0597	G337.613-0.060	G337.6125-0.0597	337.613-0.060		Descr	6035 MHz;	6035	-42	2.4	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	3.500		2001 May 1-3, Sep 1-2
	16 38 9.5	-47 04 59.9	337.6125	-0.0597	G337.613-0.060	G337.6125-0.0597	337.613-0.060		Descr	6035 MHz;	6035	-42	2.4	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	3.500		2001 May 1-3, Sep 1-2
53	16 38 29.7	-47 00 35.8	337.7053	-0.0532	G337.705-0.053	G337.7053-0.0532	337.705-0.053		Descr	6035 MHz;	6035	-50.6	1.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	4.200		2001 May 1-3, Sep 1-2
	16 38 29.7	-47 00 35.8	337.7053	-0.0532	G337.705-0.053	G337.7053-0.0532	337.705-0.053		Descr	6035 MHz;	6035	-50.6	1.1	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	4.200		2001 May 1-3, Sep 1-2
55	16 39 39	-46 41 28.3	338.0747	0.0118	G338.075+0.012	G338.0748+0.0118	338.075+0.012		Descr	6035 MHz;	6035	-48.7	0.35	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	4.400		2001 May 1-3, Sep 1-2
	16 39 39	-46 41 28.3	338.0747	0.0118	G338.075+0.012	G338.0748+0.0118	338.075+0.012		Descr	6035 MHz;	6035	-48.7	0.35	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	4.400		2001 May 1-3, Sep 1-2
57	16 38 9.1	-46 11 3.1	338.2803	0.5424	G338.280+0.542	G338.2803+0.5424	338.280+0.542		Descr	6035 MHz;	6035	-56.8	2.3	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	5.000		2001 May 1-3, Sep 1-2
	16 38 9.1	-46 11 3.1	338.2803	0.5424	G338.280+0.542	G338.2803+0.5424	338.280+0.542		Descr	6035 MHz;	6035	-56.8	2.3	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	5.000		2001 May 1-3, Sep 1-2
59	16 40 33.5	-45 41 37.2	338.9250	0.5565	G338.925+0.556	G338.9251+0.5565	338.925+0.557		Descr	6035 MHz;	6035	-63	0.32	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	5.000		2001 May 1-3, Sep 1-2
	16 40 33.5	-45 41 37.2	338.9250	0.5565	G338.925+0.556	G338.9251+0.5565	338.925+0.557		Descr	6035 MHz;	6035	-63	0.32	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED	5.000		2001 May 1-3, Sep 1-2
61	16 44 49	-46 10 13.1	339.0530	-0.3146	G339.053-0.315	G339.0530-0.3146	339.053-0.315	Image	Descr	6035 MHz;	6035	-111.3	0.42	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	9.300		2001 May 1-3, Sep 1-2
	16 44 49	-46 10 13.1	339.0530	-0.3146	G339.053-0.315	G339.0530-0.3146	339.053-0.315	Image	Descr	6035 MHz;	6035	-111.3	0.42	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	9.300		2001 May 1-3, Sep 1-2
63	16 43 43.1	-45 42 08	339.2822	0.1359	G339.282+0.136	G339.2822+0.1359	339.282+0.136		Descr	6035 MHz;	6035	-70.8	0.52	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	5.700		2001 May 1-3, Sep 1-2
	16 43 43.1	-45 42 08	339.2822	0.1359	G339.282+0.136	G339.2822+0.1359	339.282+0.136		Descr	6035 MHz;	6035	-70.8	0.52	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	5.700		2001 May 1-3, Sep 1-2
65	16 46 06	-45 36 44.1	339.6219	-0.1206	G339.622-0.121	G339.6220-0.1206	339.622-0.121		Descr	6035 MHz;	6035	-30.6	0.64	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	3.300		2001 May 1-3, Sep 1-2
	16 46 06	-45 36 44.1	339.6219	-0.1206	G339.622-0.121	G339.6220-0.1206	339.622-0.121		Descr	6035 MHz;	6035	-30.6	0.64	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	3.300		2001 May 1-3, Sep 1-2
67	16 52 4.6	-46 08 34	339.8839	-1.2586	G339.884-1.259	G339.8840-1.2589	339.884-1.259	Image	Descr	6035 MHz;	6035	-37.4	25.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
	16 52 4.6	-46 08 34	339.8839	-1.2586	G339.884-1.259	G339.8840-1.2589	339.884-1.259	Image	Descr	6035 MHz;	6035	-37.4	25.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.100		2001 May 1-3, Sep 1-2
69	16 50 14.8	-44 42 26.7	340.7849	-0.0960	G340.785-0.096	G340.7850-0.0960	340.785-0.096		Descr	6035 MHz;	6035	-102	7.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	9.400		2001 May 1-3, Sep 1-2
	16 50 14.8	-44 42 26.7	340.7849	-0.0960	G340.785-0.096	G340.7850-0.0960	340.785-0.096		Descr	6035 MHz;	6035	-102	7.5	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	9.400		2001 May 1-3, Sep 1-2
71	17 00 10.9	-42 07 19.3	343.9295	0.1249	G343.929+0.125	G343.9294+0.1249	343.929+0.125		Descr	6035 MHz;	6035	13.6	4.2	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	2.000		2001 May 1-3, Sep 1-2
	17 00 10.9	-42 07 19.3	343.9295	0.1249	G343.929+0.125	G343.9294+0.1249	343.929+0.125		Descr	6035 MHz;	6035	13.6	4.2	PRS	0.07	0.050	216	-H₂O +CH₃OH II +OH	SFR	2.000		2001 May 1-3, Sep 1-2
73	17 02 8.6	-41 47 10.2	344.4185	0.0436	G344.419+0.045	G344.4200+0.0444	344.419+0.044		Descr	6035 MHz;	6035	-72.2	0.2	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	3.400		2001 May 1-3, Sep 1-2
	17 02 8.6	-41 47 10.2	344.4185	0.0436	G344.419+0.045	G344.4200+0.0444	344.419+0.044		Descr	6035 MHz;	6035	-72.2	0.2	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	3.400		2001 May 1-3, Sep 1-2
75	17 05 11.2	-41 29 07	345.0034	-0.2244	G345.003-0.224	G345.0033-0.2243	345.003-0.224	Image	Descr	6035 MHz;	6035	-26.2	3.2	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.200		2001 May 1-3, Sep 1-2
	17 05 11.2	-41 29 07	345.0034	-0.2244	G345.003-0.224	G345.0033-0.2243	345.003-0.224	Image	Descr	6035 MHz;	6035	-26.2	3.2	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.200		2001 May 1-3, Sep 1-2
77	16 56 47.6	-40 14 25.7	345.0095	1.7924	G345.010+1.792	G345.0097+1.7924	345.010+1.792	Image	Descr	6035 MHz;	6035	-21.5	11	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.000		2001 May 1-3, Sep 1-2
	16 56 47.6	-40 14 25.7	345.0095	1.7924	G345.010+1.792	G345.0097+1.7924	345.010+1.792	Image	Descr	6035 MHz;	6035	-21.5	11	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	3.000		2001 May 1-3, Sep 1-2
79	17 09 35.4	-41 35 57.1	345.4068	-0.9519	G345.407-0.952	G345.4070-0.9519	345.407-0.952		Descr	6035 MHz;	6035	-16.1	0.29	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH		2.300		2001 May 1-3, Sep 1-2
	17 09 35.4	-41 35 57.1	345.4068	-0.9519	G345.407-0.952	G345.4070-0.9519	345.407-0.952		Descr	6035 MHz;	6035	-16.1	0.29	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH		2.300		2001 May 1-3, Sep 1-2
81	17 09 35.4	-41 35 55	345.4072	-0.9515	G345.407-0.952	G345.4070-0.9519	345.407-0.951		Descr	6035 MHz;	6035	-26.4	0.26	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH		2.300		2001 May 1-3, Sep 1-2
	17 09 35.4	-41 35 55	345.4072	-0.9515	G345.407-0.952	G345.4070-0.9519	345.407-0.951		Descr	6035 MHz;	6035	-26.4	0.26	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH		2.300		2001 May 1-3, Sep 1-2
83	17 04 28.1	-40 46 25.3	345.4874	0.3144	G345.487+0.314	G345.4874+0.3144	345.487+0.314	Image	Descr	6035 MHz;	6035	-22.1	3.9	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	2.100		2001 May 1-3, Sep 1-2
	17 04 28.1	-40 46 25.3	345.4874	0.3144	G345.487+0.314	G345.4874+0.3144	345.487+0.314	Image	Descr	6035 MHz;	6035	-22.1	3.9	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR	2.100		2001 May 1-3, Sep 1-2
85	17 06 50.6	-40 50 59.6	345.6982	-0.0897	G345.698-0.090	G345.6982-0.0898	345.698-0.090	Image	Descr	6035 MHz;	6035	-4.8	3.8	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	1.000		2001 May 1-3, Sep 1-2
	17 06 50.6	-40 50 59.6	345.6982	-0.0897	G345.698-0.090	G345.6982-0.0898	345.698-0.090	Image	Descr	6035 MHz;	6035	-4.8	3.8	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH	SFR	1.000		2001 May 1-3, Sep 1-2
87	17 11 50.9	-39 09 29	347.6279	0.1486	G347.628+0.148	G347.6281+0.1483	347.628+0.149	Image	Descr	6035 MHz;	6035	-96.7	5	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	9.700		2001 May 1-3, Sep 1-2
	17 11 50.9	-39 09 29	347.6279	0.1486	G347.628+0.148	G347.6281+0.1483	347.628+0.149	Image	Descr	6035 MHz;	6035	-96.7	5	PRS	0.07	0.050	216	+H₂O +CH₃OH II +OH	SFR_MIXED	9.700		2001 May 1-3, Sep 1-2
89	17 19 20.4	-39 03 51.6	348.5498	-0.9788	G348.550-0.979	G348.5498-0.9788	348.550-0.979		Descr	6035 MHz;	6035	-13.1	1.4	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	2.500		2001 May 1-3, Sep 1-2
	17 19 20.4	-39 03 51.6	348.5498	-0.9788	G348.550-0.979	G348.5498-0.9788	348.550-0.979		Descr	6035 MHz;	6035	-13.1	1.4	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	2.500		2001 May 1-3, Sep 1-2
91	17 19 25.6	-37 10 4.4	350.1131	0.0949	G350.110+0.085	G350.1131+0.0949	350.113+0.095		Descr	6035 MHz;	6035	-72.1	0.26	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH		9.800		2001 May 1-3, Sep 1-2
	17 19 25.6	-37 10 4.4	350.1131	0.0949	G350.110+0.085	G350.1131+0.0949	350.113+0.095		Descr	6035 MHz;	6035	-72.1	0.26	PRS	0.07	0.050	216	+H₂O -CH₃OH I +CH₃OH II +OH		9.800		2001 May 1-3, Sep 1-2
93	17 20 53.4	-35 47 1.2	351.4169	0.6452	G351.417+0.645	G351.4169+0.6451	351.417+0.645	Image	Descr	6035 MHz;	6035	-10.4	135	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	1.900		2001 May 1-3, Sep 1-2
	17 20 53.4	-35 47 1.2	351.4169	0.6452	G351.417+0.645	G351.4169+0.6451	351.417+0.645	Image	Descr	6035 MHz;	6035	-10.4	135	PRS	0.07	0.050	216	+H₂O +CH₃OH I +CH₃OH II +OH	SFR	1.900		2001 May 1-3, Sep 1-2
95	17 25 25.1	-36 12 46.1	351.5809	-0.3528

Display data from paper

CAS03 - Spectra of OH masers at 6035 and 6030 MHz

View as list of objects

Detection table from Caswell (2003)