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GAY93 - New detections of 6.6 GHz 5 1 -6 0 A+ methanol emission towards southern hydroxyl masers.

Short title: Gaylard & MacLeod (1993)
Authors: Gaylard, M. J.MacLeod, G. C.
Journal: Monthly Notices of the Royal Astronomical Society, Vol. 262, 43-48 (1993)
Bibcode:

Non-detection table: Show non-detection table
Detection table: Show detection table (19 detection)
Target type: OH
Transitions: CH3OH_6(II)

Abstract
Southern star-forming regions identified by the presence of 1.6-GHz hydroxyl masers have been searched for the presence of methanol using the 6.6-GHz 5(1)-6(0) A(+)-methanol transition. Eighteen masers are detected from a sample of 62 sources, and methanol is seen in absorption towards two positions. Four of the detections are located in the far side of the Carina spiral arm. The 3 sigma detection limit in the search was 1.5 Jy.

Abstract

Southern star-forming regions identified by the presence of 1.6-GHz hydroxyl masers have been searched for the presence of methanol using the 6.6-GHz 5(1)-6(0) A(+)-methanol transition. Eighteen masers are detected from a sample of 62 sources, and methanol is seen in absorption towards two positions. Four of the detections are located in the far side of the Carina spiral arm. The 3 sigma detection limit in the search was 1.5 Jy.

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Detection table from Gaylard & MacLeod (1993)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Image	Line	V_range	F_peak	∫F dv	Telescope	RMS	Beam	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(deg.)	(deg.)				CH₃OH (class II)	(km/s)	(Jy)	(Jy*km/s)		(Jy)	(arcsec)	Yes/No		(kpc)
1	05 30 50.4	+33 48 6.3	174.2027	-0.0618	G174.198-0.076	174.20-0.08	Image	6.6 GHz (II);	0;5	84.9 (1.5)	64.6 (0.5)	HartRAO	0.500	420	+H₂O +CH₃OH I +CH₃OH II	GALAXY		1992 May and June
2	10 31 28.5	-58 02 11.1	285.2598	-0.0498	G285.263-0.050	285.26-0.05	Image	6.6 GHz (II);	0;1	1.7 (0.4)	1.2 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR_MIXED		1992 May and June
3	11 15 1.8	-61 09 24.4	291.5700	-0.4299	G291.579-0.431	291.57-0.43	Image	6.6 GHz (II);	9;13	2.9 (0.5)	4.3 (0.1)	HartRAO	0.500	420	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
4	12 17 28.3	-62 29 2.1	299.0202	0.1296	G299.013+0.128	299.02+0.13	Image	6.6 GHz (II);	18;20	4.5 (0.7)	3.0 (0.1)	HartRAO	0.500	420	+H₂O -CH₃OH I +CH₃OH II +OH	SFR_MIXED		1992 May and June
5	12 30 6.6	-62 57 4.7	300.5100	-0.1799	G300.504-0.176	300.51-0.18	Image	6.6 GHz (II);	7;9	3.5 (0.7)	3.7 (0.1)	HartRAO	0.500	420	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
6	12 34 53.9	-61 39 30.9	300.9699	1.1501	G300.969+1.148	300.97+1.15	Image	6.6 GHz (II);	-38;-36	3.9 (0.7)	4.6 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
7	13 12 35	-62 37 19.9	305.3601	0.1498	G305.362+0.150	305.36+0.15	Image	6.6 GHz (II);	-37;-33	4.5 (0.6)	5.2 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
8	14 53 44.2	-59 09 13.8	318.0500	0.0802	G318.050+0.085	318.05+0.08	Image	6.6 GHz (II);	-58;-51	4.4 (0.6)	4.0 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
9	15 16 45.3	-58 10 7.7	321.1399	-0.5299	G321.148-0.529	321.14-0.53	Image	6.6 GHz (II);	-67;-61	7.4 (0.7)	5.7 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
10	15 34 54.8	-55 28 31.9	324.7001	0.3301	G324.700+0.330	324.70+0.33	Image	6.6 GHz (II);	-49;-45	7.1 (0.7)	6.2 (0.1)	HartRAO	0.500	420	+CH₃OH II	SFR		1992 May and June
11	16 09 53.9	-51 54 34.7	330.9599	-0.1802	G330.954-0.182	330.96-0.18	Image	6.6 GHz (II);	-89;-87	6.5 (0.7)	3.9 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
12	16 39 58.2	-46 12 40.5	338.4698	0.2897	G338.472+0.289	338.47+0.29	Image	6.6 GHz (II);	-46;-43	1.4 (0.4)	2.1 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
13	16 51 16	-44 13 41.7	341.2698	0.0701	G341.276+0.062	341.27+0.07	Image	6.6 GHz (II);	-74;-70	5.1 (0.6)	6.8 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
14	17 08 23.2	-40 05 32.3	346.4804	0.1299	G346.481+0.132	346.48+0.13	Image	6.6 GHz (II);	-20;-18	5.6 (0.7)	4.4 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
15	17 19 18.1	-39 03 33.5	348.5497	-0.9699	G348.550-0.979	348.55-0.97	Image	6.6 GHz (II);	-23;-9	40.5 (1.1)	88.0 (0.5)	HartRAO	0.500	420	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		1992 May and June
16	17 15 52.8	-38 10 9.1	348.8904	0.0898	G348.885+0.096	348.89+0.09	Image	6.6 GHz (II);	-77;-74	5.7 (0.7)	6.0 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
17	17 17 47.1	-37 03 3.9	350.0203	0.4299	G350.015+0.433	350.02+0.43	Image	6.6 GHz (II);	-37;-23	5.0 (0.7)	9.5 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR_MIXED		1992 May and June
18	17 27 9.1	-35 19 43.4	352.5105	-0.1503	G352.518-0.155	352.51-0.15	Image	6.6 GHz (II);	-54;-49	6.5 (0.8)	10.8 (0.1)	HartRAO	0.500	420	+H₂O +CH₃OH II +OH	SFR		1992 May and June
19	17 38 37.3	-35 54 57.7	353.2887	-2.4247	G353.289-2.425	356.66-0.27	Image	6.6 GHz (II);	-56;-45	9.6 (0.5)	13.3 (0.1)	HartRAO	0.500	420	+CH₃OH II	EVOLVED		1992 May and June

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 GAY93

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