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KAL94B - Observations of methanol masers at 95 GHz

Short title: Kalenskii et al. (1994B)
Authors: Kalenskii, S. V. Liljestroem, T. Val'tts, I. E. Vasil'kov, V. I. Slysh, V. I. Urpo, S.
Journal: Astronomy and Astrophysics Suppl., Vol. 103, p.129-134 (1994)
Bibcode:

Target type: High_mass_SFR
Transitions: OH_1665,CH3OH_9(I),CH3OH_36(I),CH3OH_44(I),CH3OH_95(I),CH3OH_107(I),CH3OH_6(II),CH3OH_12(II),CH3OH_108(II),CH3OH_157(II)

Abstract
The Metsaehovi 13.7-m radio telescope was used to search for emission in the 95 GHz 8_0_-7_1_ A^+^ transition of methanol towards a number of star-forming regions. Eleven known 44 GHz (7_0_-6_1_ A^+^ transition) methanol masers were observed 95 GHz emission was found towards nine sources, five of which are new detections. For two sources, S 140 and R 146, only upper limits were obtained. Most likely the 95 GHz line is masing in all cases with detected emission, except for W51 e1/e2 toward which a broad thermal emission line is observed. The integrated flux density is higher at 95 GHz than at 44 GHz. It is suggested that the 95 GHz methanol masers are as widespread as the 44 GHz masers.

Abstract

The Metsaehovi 13.7-m radio telescope was used to search for emission in the 95 GHz 8_0_-7_1_ A^+^ transition of methanol towards a number of star-forming regions. Eleven known 44 GHz (7_0_-6_1_ A^+^ transition) methanol masers were observed 95 GHz emission was found towards nine sources, five of which are new detections. For two sources, S 140 and R 146, only upper limits were obtained. Most likely the 95 GHz line is masing in all cases with detected emission, except for W51 e1/e2 toward which a broad thermal emission line is observed. The integrated flux density is higher at 95 GHz than at 44 GHz. It is suggested that the 95 GHz methanol masers are as widespread as the 44 GHz masers.

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Detection table from Kalenskii et al. (1994B)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Other name	Line	V_peak	FWHM	∫F dv	List	Beam	Detection	Class	Dist. (parallax)	Ref.
	(J2000)	(J2000)	(deg.)	(deg.)		Comp	CH₃OH (class I)	(km/s)	(km/s)	(Jy*km/s)		(arcsec)	Yes/No		(kpc)
1	06 12 56.4	+17 59 53.8	192.5974	-0.0355	G192.599-0.048		95 GHz (I);	10.75	2.12	97.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED		KAL94B
2	19 23 43.9	+14 30 36.4	49.4901	-0.3871	G49.488-0.387		95 GHz (I);	55.67	5.58	300.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		KAL94B
3	06 41 9.7	+09 29 34.9	203.3155	2.0549	G203.316+2.055		95 GHz (I);	7.24	0.83	130.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II	SFR_MIXED		KAL94B
4	20 38 36.8	+42 37 59.5	81.8775	0.7838	G81.876+0.782	(N)	95 GHz (I);	9.05	1.98	90.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH	SFR_MIXED		KAL94B
5	05 39 12.9	+35 45 54	173.4808	2.4461	G173.481+2.446		95 GHz (I);	-17	1.57	110.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		KAL94B
6	20 38 54.6	+42 19 23.5	81.6644	0.5521	G81.711+0.563		95 GHz (I);	-2.54	1.06	290.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH -SiO	SFR		KAL94B
7	20 39 3.5	+42 25 53	81.7670	0.5961	G81.767+0.596	S(3)	95 GHz (I);	-4.47	2.38	90.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		KAL94B
8	23 13 46.4	+61 27 32.7	111.5403	0.7664	G111.542+0.769		95 GHz (I);	-57.55	1.31	220.00	AVE02	60	+H₂O +CH₃OH I +CH₃OH II +OH	SFR		KAL94B

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

select MAX(met1_data_all.ra_hms) as ra_hms,MAX(met1_data_all.dec_dms) as dec_dms,MAX(met1_data_all.source_name) as source_name,MAX(met1_data_all.ra) as ra,MAX(met1_data_all.dec) as dec,MAX(met1_data_all.l) as l,MAX(met1_data_all.b) as b,MAX(met1_data_all.grp) as grp,MAX(met1_data_all.other_name) as other_name,MAX(met1_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(met1_data_all.line) as line,MAX(met1_data_all.vrange) as vrange,MAX(met1_data_all.vpeak) as vpeak,MAX(met1_data_all.peak) as peak,MAX(met1_data_all.fwhm) as fwhm,MAX(met1_data_all.int) as int,MAX(met1_data_all.rms) as rms,MAX(met1_data_all.units) as units,MAX(met1_data_all.units_rms) as units_rms,MAX(met1_data_all.date_txt) as date_txt,MAX(met1_data_all.telescope_ref) as telescope_ref,MAX(met1_data_all.telescope_conf) as telescope_conf,MAX(met1_data_all.v_step) as v_step,MAX(met1_data_all.beam) as beam,MAX(met1_data_all.beam_maj) as beam_maj,MAX(met1_data_all.beam_min) as beam_min,MAX(met1_data_all.beam_pa) as beam_pa,MAX(met1_data_all.ref) as ref,MAX(met1_data_all.list_ref) as list_ref,MAX(met1_data_all.ascii) as ascii,MAX(met1_data_all.url) as url,MAX(met1_data_all.image) as image,MAX(met1_data_all.image2) as image2,MAX(met1_data_all.image3) as image3,MAX(met1_data_all.descr) as descr,MAX(met1_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(met1_data_all.dist) as dist,1 as dist_parallax,MAX(met1_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 met1_data_all  LEFT JOIN all_objects_withmet ON met1_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 met1_data_all.line=transitions."Line"  WHERE ref ilike 'KAL94B' AND detected=true AND hide=false GROUP BY ref

select met1_data_all.ra_hms,met1_data_all.dec_dms,met1_data_all.source_name,met1_data_all.ra,met1_data_all.dec,met1_data_all.l,met1_data_all.b,met1_data_all.grp,met1_data_all.other_name,met1_data_all.other_desc,met1_data_all.thermal,met1_data_all.line,met1_data_all.vrange,met1_data_all.vpeak,met1_data_all.peak,met1_data_all.fwhm,met1_data_all.int,met1_data_all.rms,met1_data_all.units,met1_data_all.units_rms,met1_data_all.date_txt,met1_data_all.telescope_ref,met1_data_all.telescope_conf,met1_data_all.v_step,met1_data_all.beam,met1_data_all.beam_maj,met1_data_all.beam_min,met1_data_all.beam_pa,met1_data_all.ref,met1_data_all.list_ref,met1_data_all.ascii,met1_data_all.url,met1_data_all.image,met1_data_all.image2,met1_data_all.image3,met1_data_all.descr,met1_data_all.id,met1_data_all.mjy_flag,met1_data_all.rms_mjy_flag,met1_data_all.dist,met1_data_all.dist_parallax,met1_data_all.date_txt,line_det,type,simbad_types_cat FROM met1_data_all   LEFT JOIN all_objects_withmet ON met1_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 met1_data_all.line=transitions."Line"  WHERE ref ilike 'KAL94B' AND detected=true AND hide=false ORDER BY detected DESC,id

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KAL94B - Observations of methanol masers at 95 GHz

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Detection table from Kalenskii et al. (1994B)