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CAS04C - Molecular masers of OH, methanol and water in NGC 3576, NGC 3603 and RCW 79

Short title: Caswell (2004)
Authors: Caswell, J. L.
Journal: Monthly Notices of the Royal Astronomical Society, Volume 351, Issue 1, pp. 279-284.
Bibcode:
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Target type: High_mass_SFR
Observations category: SF.general
Facility type: interferometer
Transitions: H2O_22,OH_1665,CH3OH_6(II)

Abstract
New observations yielding precise position measurements of masers in NGC 3576, NGC 3603 and RCW 79 have been made with the Australia Telescope Compact Array. Two water masers and one OH maser are new discoveries, and the remaining 15 measurements refine positions of previously known masers of OH, methanol and water. The total of 18 maser detections are confined to nine distinct locations, all containing water. Three locations host all three species; two have water with methanol and one has water with OH. The specific combination of masers at any one site is believed to provide clues to the evolutionary stage of the very young massive star responsible for exciting the masers; the various combinations of masers are considered in this context.

Abstract

New observations yielding precise position measurements of masers in NGC 3576, NGC 3603 and RCW 79 have been made with the Australia Telescope Compact Array. Two water masers and one OH maser are new discoveries, and the remaining 15 measurements refine positions of previously known masers of OH, methanol and water. The total of 18 maser detections are confined to nine distinct locations, all containing water. Three locations host all three species; two have water with methanol and one has water with OH. The specific combination of masers at any one site is believed to provide clues to the evolutionary stage of the very young massive star responsible for exciting the masers; the various combinations of masers are considered in this context.

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Detection table from Caswell (2004)

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ID	Obs. RA	Obs. Dec	l	b	Group id	grpv	Source name	Descr.	Line	Frequency	V_range	V_peak	F_peak	Telescope	V_step	RMS	Beam	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(deg.)	(deg.)					OH	(MHz)	(km/s)	(km/s)	(Jy)		(km/s)	(mJy)	(arcsec)	Yes/No		(kpc)
1	11 11 53.4	-61 18 23.4	291.2742	-0.7084	G291.274-0.709	G291.2741-0.7086	291.274-0.709	Descr	1665 MHz;	1665	-25;-24	-24.5	0.6	ATCA	0.36	46.000	7	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
2	11 11 53.4	-61 18 23.7	291.2741	-0.7086	G291.274-0.709	G291.2741-0.7086	291.274-0.709		6668;	6668	-31;-28	-29.6	100	ATCA	0.36	120.000	2	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
3	11 11 53.3	-61 18 24.1	291.2740	-0.7087	G291.274-0.709	G291.2741-0.7086	291.274-0.709		22235;	22235	-51;14	-30	60	ATCA	0.84	150.000	9	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Oct
4	11 11 49.4	-61 18 51.9	291.2697	-0.7187	G291.274-0.709	G291.2699-0.7188	291.270-0.719	Descr	6668;	6668	-32;-26	-26.5	4	ATCA	0.36	46.000	7	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
5	11 11 49.7	-61 18 53.8	291.2704	-0.7191	G291.274-0.709	G291.2699-0.7188	291.270-0.719		22235;	22235	-109;-21	-102	68	ATCA	0.36	120.000	2	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
6	11 11 56.6	-61 19 1.1	291.2839	-0.7158	G291.274-0.709	G291.2840-0.7158	291.284-0.716	Descr	22235;	22235	-142;-121	-133	945	ATCA	0.84	150.000	9	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Oct
7	11 15 5.8	-61 09 41	291.5792	-0.4313	G291.579-0.431	G291.5791-0.4313	291.579-0.431	Descr	1665 MHz;	1665	7;20	12	0.8	ATCA	0.36	46.000	7	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
8	11 15 5.7	-61 09 41	291.5791	-0.4313	G291.579-0.431	G291.5791-0.4313	291.579-0.431		6668;	6668	13;16	14.5	0.7	ATCA	0.36	120.000	2	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
9	11 15 5.7	-61 09 41	291.5789	-0.4313	G291.579-0.431	G291.5791-0.4313	291.579-0.431		22235;	22235	-8;41	12	230	ATCA	0.84	150.000	9	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Oct
10	11 15 6.6	-61 09 58.3	291.5825	-0.4351	G291.579-0.431	G291.5791-0.4313	291.582-0.435	Descr	6668;	6668	8;11	10.5	1.8	ATCA	0.36	46.000	7	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
11	11 15 6.2	-61 09 56.1	291.5814	-0.4349	G291.579-0.431	G291.5791-0.4313	291.582-0.435		22235;	22235	25;27	26	5	ATCA	0.36	120.000	2	+H₂O -CH₃OH I +CH₃OH II +OH	SFR		2003 Dec 11
12	11 15 2.8	-61 15 48.9	291.6106	-0.5287	G291.627-0.529	G291.6104-0.5290	291.610-0.529	Descr	1665 MHz;	1665	15;22	18	7	ATCA	0.84	150.000	9	+H₂O +CH₃OH II +OH	SFR		2003 Oct
13	11 15 2.6	-61 15 48.8	291.6103	-0.5288	G291.627-0.529	G291.6104-0.5290	291.610-0.529		22235;	22235	-70;20	13	19	ATCA	0.36	46.000	7	+H₂O +CH₃OH II +OH	SFR		2003 Dec 11
14	11 15 10.2	-61 16 12.7	291.6269	-0.5294	G291.627-0.529	G291.6269-0.5294	291.627-0.529	Descr	22235;	22235	20;24	22	13	ATCA	0.36	120.000	2	+H₂O +CH₃OH II +OH	SFR		2003 Dec 11
15	11 15 8.9	-61 16 54.8	291.6287	-0.5413	G291.627-0.529	G291.6287-0.5413	291.629-0.541	Descr	22235;	22235	7;12	10.8	25	ATCA	0.84	150.000	9	+H₂O +CH₃OH II +OH	SFR		2003 Oct
16	13 40 57.6	-61 45 42.9	308.7543	0.5487	G308.754+0.549	G308.7543+0.5486	308.754+0.549	Descr	1665 MHz;	1665	-44;-43	-43.5	0.5	ATCA	0.36	46.000	7	+H₂O +CH₃OH II +OH	SFR		2003 Dec 11
17	13 40 57.6	-61 45 43.4	308.7544	0.5486	G308.754+0.549	G308.7543+0.5486	308.754+0.549		6668;	6668	-52;-39	-51	5	ATCA	0.36	120.000	2	+H₂O +CH₃OH II +OH	SFR		2003 Dec 11
18	13 40 57.4	-61 45 43.2	308.7540	0.5487	G308.754+0.549	G308.7543+0.5486	308.754+0.549		22235;	22235	-50;-48	-49	3	ATCA	0.84	150.000	9	+H₂O +CH₃OH II +OH	SFR		2003 Oct

DSS colored	2MASS colored	WISE colored
PACS color (70-160 um)	SPIRE color (250-500 um)	GLIMPSE 360
SDSS color	IRAC color I1,I2,I4	NVSS (1.4GHz)
ATLASGAL 870 um	ATLASGAL 870 um + Planck	Bolocam 1.1 mm

select MAX(oh_data_all.ra_hms) as ra_hms,MAX(oh_data_all.dec_dms) as dec_dms,MAX(oh_data_all.source_name) as source_name,MAX(oh_data_all.ra) as ra,MAX(oh_data_all.dec) as dec,MAX(oh_data_all.l) as l,MAX(oh_data_all.b) as b,MAX(oh_data_all.grp) as grp,MAX(oh_data_all.grpv) as grpv,MAX(oh_data_all.other_name) as other_name,MAX(oh_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(oh_data_all.line) as line,MAX(oh_data_all.freq) as freq,MAX(oh_data_all.pol) as pol,MAX(oh_data_all.vrange) as vrange,MAX(oh_data_all.vpeak) as vpeak,MAX(oh_data_all.peak) as peak,MAX(oh_data_all.fwhm) as fwhm,MAX(oh_data_all.int) as int,MAX(oh_data_all.rms) as rms,MAX(oh_data_all.units) as units,MAX(oh_data_all.units_rms) as units_rms,MAX(oh_data_all.date_txt) as date_txt,MAX(oh_data_all.telescope_ref) as telescope_ref,MAX(oh_data_all.telescope_conf) as telescope_conf,MAX(oh_data_all.v_step) as v_step,MAX(oh_data_all.beam) as beam,MAX(oh_data_all.beam_maj) as beam_maj,MAX(oh_data_all.beam_min) as beam_min,MAX(oh_data_all.beam_pa) as beam_pa,MAX(oh_data_all.ref) as ref,MAX(oh_data_all.list_ref) as list_ref,MAX(oh_data_all.ascii) as ascii,MAX(oh_data_all.url) as url,MAX(oh_data_all.image) as image,MAX(oh_data_all.image2) as image2,MAX(oh_data_all.image3) as image3,MAX(oh_data_all.descr) as descr,MAX(oh_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(oh_data_all.dist) as dist,1 as dist_parallax,MAX(oh_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM oh_data_all  LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'CAS04C' AND detected=true AND hide=false GROUP BY ref

select oh_data_all.ra_hms,oh_data_all.dec_dms,oh_data_all.source_name,oh_data_all.ra,oh_data_all.dec,oh_data_all.l,oh_data_all.b,oh_data_all.grp,oh_data_all.grpv,oh_data_all.other_name,oh_data_all.other_desc,oh_data_all.thermal,oh_data_all.line,oh_data_all.freq,oh_data_all.pol,oh_data_all.vrange,oh_data_all.vpeak,oh_data_all.peak,oh_data_all.fwhm,oh_data_all.int,oh_data_all.rms,oh_data_all.units,oh_data_all.units_rms,oh_data_all.date_txt,oh_data_all.telescope_ref,oh_data_all.telescope_conf,oh_data_all.v_step,oh_data_all.beam,oh_data_all.beam_maj,oh_data_all.beam_min,oh_data_all.beam_pa,oh_data_all.ref,oh_data_all.list_ref,oh_data_all.ascii,oh_data_all.url,oh_data_all.image,oh_data_all.image2,oh_data_all.image3,oh_data_all.descr,oh_data_all.id,oh_data_all.mjy_flag,oh_data_all.rms_mjy_flag,oh_data_all.dist,oh_data_all.dist_parallax,oh_data_all.date_txt,line_det,type,simbad_types_cat FROM oh_data_all   LEFT JOIN all_objects_withmet ON oh_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON oh_data_all.line=transitions."Line"  WHERE ref ilike 'CAS04C' AND detected=true AND hide=false ORDER BY detected DESC,id

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CAS04C - Molecular masers of OH, methanol and water in NGC 3576, NGC 3603 and RCW 79

View as list of objects

Detection table from Caswell (2004)