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CH3OH_I
SLY02 - Methanol Radio Emission at Millimeter Wavelengths: New Masers at 1.3 and 2.8 Millimeters
Short title
: Slysh et al. (2002)
Authors
: Slysh, V. I. Kalenskii, S. V. Val'tts, I. E.
Journal
: Astronomy Reports, Volume 46, Issue 1, January 2002, pp.49-56
Bibcode
:
2002ARep...46...49S
Target type
: High_mass_SFR
Transitions
: CH3OH_9(I),CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_84(I),CH3OH_95(I),CH3OH_104(I),CH3OH_132(I),CH3OH_6(II),CH3OH_107(II),CH3OH_157(II)
Abstract
The results of a search for maser emission in the methanol lines 8-1-70 E at 229.8 GHz, 3-2-4-1 E at 230.0 GHz, 00-1-1 E at 108.9 GHz, and in the J 1-J 0 E series near 165 GHz in star-forming regions are reported. At least two masers and two candidates have been detected at 229.8 GHz. Thus, methanol masers have been detected in the 1-mm band for the first time. At 108.9 GHz, masers have been detected toward G345.01+1.79 and possibly toward M8E as well. Thermal emission was found toward 28 objects. The 229.8-GHz sources are class I masers, whereas the 108.9-GHz sources are class II masers. An analysis using a large velocity-gradient method shows that the 229.8-GHz masers can appear at densities of about 3 cm-3. The ratios of the flux densities in different class I lines toward DR 21(OH) and DR 21 West can be approximated in models with gas kinetic temperatures of about 50 K. Detection of the 108.9 GHz masers toward G345.01+1.79 and M8E may provide information about the geometry of these objects.
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Table (CSV)
View as list of objects
Detection table from Slysh et al. (2002)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Line
Thermal
V
peak
FWHM
∫T
a
dv
Telescope
Beam
Detection
Class
Dist. (parallax)
Date
(J2000)
(J2000)
(deg.)
(deg.)
CH
3
OH (class I)
line mark
(km/s)
(km/s)
(K*km/s)
(arcsec)
Yes
/
No
(kpc)
1
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
229 GHz (I)
;
-13.71(0.47)
4.91(0.83)
5.9(1.0)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
2
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
165 GHz
;
*
-13.95(0.32)
6.01(0.00)
7.2(1.7); 13.7(1.7); 7.8(1.7); 8.7(1.7);3.3(1.6)*
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
3
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
108 GHz (II)
;
-22.55(0.11)
1.03(0.25)
0.7(0.2)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
108 GHz (II)
;
-21.90(0.01)
0.49(0.04)
0.8(0.1)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
108 GHz (II)
;
-13.60(0.09)
4.00(0.22)
2.2(0.1)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
6
17 20 56.5
-35 45 20.2
351.4459
0.6526
G351.446+0.660
NGC6334I(N)
229 GHz (I)
;
-4.88(0.20)
5.09(0.47)
10.4(0.8)*
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
7
17 20 56.5
-35 45 20.2
351.4459
0.6526
G351.446+0.660
NGC6334I(N)
165 GHz
;
*
-4.27(0.16)
5.34(0.22)
7.3(0.9); 8.7(0.9); 9.3(0.9); 7.0(0.8); 8.1( 1.4)
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
8
17 20 56.5
-35 45 20.2
351.4459
0.6526
G351.446+0.660
NGC6334I(N)
108 GHz (II)
;
-4.64(0.04)
5.42(0.10)
11.2(0.2)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
9
18 04 53.9
-24 26 41.3
6.0499
-1.4493
G6.050-1.449
M8E
108 GHz (II)
;
10.66(0.04)
0.83(0.13)
0.4(0.05)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
10
18 29 24.8
-15 15 17.9
16.8760
-2.1541
G16.868-2.158
L379 IRS3
229 GHz (I)
;
20.45(0.22)
4.72(1.07)
5.4(0.5)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
11
18 29 24.8
-15 15 17.9
16.8760
-2.1541
G16.868-2.158
L379 IRS3
165 GHz
;
*
19.78(0.34)
4.56(0.74)
1.9(0.7); 3.2(0.7); 1.9(0.7); 3.1(0.7)
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
12
18 29 24.8
-15 15 17.9
16.8760
-2.1541
G16.868-2.158
L379 IRS3
108 GHz (II)
;
19.32(0.13)
5.56(0.43)
3.5(0.2)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
13
20 38 54.8
+42 19 22.5
81.6645
0.5515
G81.711+0.563
DR 21 West
229 GHz (I)
;
-2.55(0.02)
0.34(0.04)
1.1(0.2)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
20 38 54.8
+42 19 22.5
81.6645
0.5515
G81.711+0.563
DR 21 West
229 GHz (I)
;
-2.16(0.12)
1.70(0.25)
2.7(0.3)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
15
20 38 59.2
+42 22 48.8
81.7183
0.5755
G81.711+0.563
DR 21(OH)
229 GHz (I)
;
-1.64(0.14)
4.18(0.28)
3.1(0.2)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
20 38 59.2
+42 22 48.8
81.7183
0.5755
G81.711+0.563
DR 21(OH)
229 GHz (I)
;
0.29(0.01)
0.65(0.03)
2.0(0.1)
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
17
20 38 59.2
+42 22 48.8
81.7183
0.5755
G81.711+0.563
DR 21(OH)
165 GHz
;
*
-2.65(0.20)
5.76(0.31)
1.7(0.3); 2.3(0.3); 2.2(0.3); 2.5(0.3)
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
18
20 38 59.2
+42 22 48.8
81.7183
0.5755
G81.711+0.563
DR 21(OH)
108 GHz (II)
;
-2.75(0.08)
4.71(0.17)
2.1(0.1)
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
Non-detection table from Slysh et al. (2002)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Line
Telescope
Beam
Detection
Class
Date
(J2000)
(J2000)
(deg.)
(deg.)
CH
3
OH (class I)
(arcsec)
Yes
/
No
1
16 56 47.6
-40 14 26.3
345.0094
1.7923
G345.010+1.792
G345.01+1.79
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
2
17 20 56.5
-35 45 20.2
351.4459
0.6526
G351.446+0.660
NGC6334I(N)
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
3
18 04 53.9
-24 26 41.3
6.0499
-1.4493
G6.050-1.449
M8E
229 GHz (I)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
4
18 04 53.9
-24 26 41.3
6.0499
-1.4493
G6.050-1.449
M8E
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
5
18 04 53.9
-24 26 41.3
6.0499
-1.4493
G6.050-1.449
M8E
165 GHz
;
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
August 29-31, 1995
6
18 29 24.8
-15 15 17.9
16.8760
-2.1541
G16.868-2.158
L379 IRS3
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
SFR
August 29-31, 1995
7
20 38 54.8
+42 19 22.5
81.6645
0.5515
G81.711+0.563
DR 21 West
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
8
20 38 54.8
+42 19 22.5
81.6645
0.5515
G81.711+0.563
DR 21 West
165 GHz
;
IRAM
15
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
9
20 38 54.8
+42 19 22.5
81.6645
0.5515
G81.711+0.563
DR 21 West
108 GHz (II)
;
IRAM
22
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
10
20 38 59.2
+42 22 48.8
81.7183
0.5755
G81.711+0.563
DR 21(OH)
230 GHz (II)
;
IRAM
10.4
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
-SiO
SFR
August 29-31, 1995
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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 'SLY02' 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 'SLY02' AND detected=true AND hide=false ORDER BY detected DESC,id
