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SiO
DEG02 - Observations of SiO Maser Sources within a Few Parsec from the Galactic Center
Short title
: Deguchi et al. (2002)
Authors
: Deguchi, Shuji Fujii, Takahiro Miyoshi, Makoto Nakashima, Jun-Ichi
Journal
: Publications of the Astronomical Society of Japan, Vol.54, No.1, pp.61-71
Bibcode
:
2002PASJ...54...61D
Abstract
Mapping and monitoring observations of SiO maser sources near the Galactic center were made with the Nobeyama 45-m telescope at 43GHz. Rectangular mapping an area of approximately 200'' × 100'' in a 30'' grid, and triangular mapping in a 20'' grid toward the Galactic center, resulted in 15 detections of SiO sources the positions of the sources were obtained with errors of 5-10'', except for a few weak sources. Three-year monitoring observations found that the component at V
lsr
= -27km s
-1
of IRS 10 EE flared to about 1.5Jy during 2000 March-May, which was a factor of more than 5 brighter than its normal intensity. Using the radial velocities and positions of the SiO sources, we identified 5 which are counterparts of previously observed OH 1612MHz sources. The other 10 SiO sources have no OH counterparts, but two were previously detected with VLA, and four are located close to the positions of large-amplitude variables observed at near-in frared wavelengths. A least-squares fit to a plot of velocities versus Galactic longitudes gives a rather high speed for the rotation of the star cluster around the Galactic center. The observed radial-velocity dispersion is roughly consistent with a value obtained before. It was found that all of the SiO sources with OH 1612MHz counterparts have periods of light variation longer than 450days, while SiO sources without OH masers often have periods shorter than 450days. This fact suggests that lower-mass AGB stars are more often detected in SiO masers than in the OH 1612MHz line. eprintid: arXiv:astro-ph/0201077
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Table (CSV)
View as list of objects
Detection table from Deguchi et al. (2002)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Line
V
peak
T
a
∫T
a
dv
Telescope
RMS
List
Detection
Class
Dist. (parallax)
Ref.
(J2000)
(J2000)
(deg.)
(deg.)
SiO
(km/s)
(K)
(K*km/s)
(Jy)
Yes
/
No
(kpc)
1
17 45 34.7
-29 01 48
359.9151
-0.0410
G359.9140-0.0420
SiO359.915-0.041
SiO J=1-0 v=1;
-26
0.096
0.368
NRO
0.019
NRO
+SiO
MIXED
DEG02
2
17 45 34.7
-29 01 48
359.9151
-0.0410
G359.9140-0.0420
SiO359.915-0.041
SiO J=1-0 v=2;
-27.4
0.084
0.496
NRO
0.021
NRO
+SiO
MIXED
DEG02
3
17 45 38.6
-29 02 2.7
359.9190
-0.0553
G359.9184-0.0551
SiO359.919-0.055
SiO J=1-0 v=1;
-308
0.668
2.764
NRO
0.018
NRO
+OH
+SiO
MIXED
DEG02
4
17 45 38.6
-29 02 2.7
359.9190
-0.0553
G359.9184-0.0551
SiO359.919-0.055
SiO J=1-0 v=2;
-308.3
0.403
2.173
NRO
0.021
NRO
+OH
+SiO
MIXED
DEG02
5
17 45 37
-29 01 40.8
359.9212
-0.0471
G359.9212-0.0471
SiO359.921-0.047
SiO J=1-0 v=1;
-110.2
0.172
0.7
NRO
0.019
NRO
DEG02
6
17 45 37
-29 01 40.8
359.9212
-0.0471
G359.9212-0.0471
SiO359.921-0.047
SiO J=1-0 v=2;
-110.1
0.144
0.775
NRO
0.023
NRO
DEG02
7
17 45 37.7
-29 01 9.8
359.9300
-0.0451
G359.9320-0.0447
SiO359.930-0.045
SiO J=1-0 v=1;
6.3
0.109
0.436
NRO
0.018
NRO
+SiO
MIXED
DEG02
8
17 45 37.7
-29 01 9.8
359.9300
-0.0451
G359.9320-0.0447
SiO359.930-0.045
SiO J=1-0 v=2;
7.4
0.087
0.296
NRO
0.014
NRO
+SiO
MIXED
DEG02
9
17 45 39.7
-29 00 26.6
359.9440
-0.0450
G359.9444-0.0464
SiO359.944-0.045
SiO J=1-0 v=1;
-335.8
0.031
0.123
NRO
0.009
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
10
17 45 39.7
-29 00 26.6
359.9440
-0.0450
G359.9444-0.0464
SiO359.944-0.045
SiO J=1-0 v=2;
-335.7
0.044
0.314
NRO
0.014
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
11
17 45 39.9
-29 00 23.6
359.9451
-0.0452
G359.9444-0.0464
SiO359.945-0.045
SiO J=1-0 v=1;
-60.8
0.102
0.206
NRO
0.012
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
12
17 45 39.9
-29 00 23.6
359.9451
-0.0452
G359.9444-0.0464
SiO359.945-0.045
SiO J=1-0 v=2;
-62
0.109
0.243
NRO
0.014
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
13
17 45 40.3
-29 00 27.6
359.9449
-0.0470
G359.9444-0.0464
SiO359.945-0.047
SiO J=1-0 v=1;
-27.8
0.349
1.228
NRO
0.008
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
14
17 45 40.3
-29 00 27.6
359.9449
-0.0470
G359.9444-0.0464
SiO359.945-0.047
SiO J=1-0 v=2;
-27.4
0.583
1.732
NRO
0.010
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
15
17 45 40
-29 00 20.6
359.9460
-0.0450
G359.9444-0.0464
SiO359.946-0.045
SiO J=1-0 v=1;
-12.5
0.051
0.157
NRO
0.010
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
16
17 45 40
-29 00 20.6
359.9460
-0.0450
G359.9444-0.0464
SiO359.946-0.045
SiO J=1-0 v=2;
-13.7
0.044
0.288
NRO
0.007
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
17
17 45 40.2
-29 00 22.6
359.9459
-0.0459
G359.9444-0.0464
SiO359.946-0.046
SiO J=1-0 v=1;
85.2
0.073
0.265
NRO
0.008
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
18
17 45 40.2
-29 00 22.6
359.9459
-0.0459
G359.9444-0.0464
SiO359.946-0.046
SiO J=1-0 v=2;
84.8
0.046
0.103
NRO
0.010
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
19
17 45 40.5
-29 00 24.6
359.9460
-0.0472
G359.9444-0.0464
SiO359.946-0.047
SiO J=1-0 v=2;
-117.3
0.036
0.16
NRO
0.010
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
20
17 45 39.7
-28 59 52.6
359.9520
-0.0400
G359.9540-0.0405
SiO359.952-0.040
SiO J=1-0 v=1;
71.7
0.302
1.027
NRO
0.022
NRO
DEG02
21
17 45 39.7
-28 59 52.6
359.9520
-0.0400
G359.9540-0.0405
SiO359.952-0.040
SiO J=1-0 v=2;
71.3
0.249
1.151
NRO
0.028
NRO
DEG02
22
17 45 38
-28 59 34.7
359.9530
-0.0321
G359.9548-0.0303
SiO359.953-0.032
SiO J=1-0 v=1;
37.7
0.092
0.161
NRO
0.014
NRO
+OH
DEG02
23
17 45 38
-28 59 34.7
359.9530
-0.0321
G359.9548-0.0303
SiO359.953-0.032
SiO J=1-0 v=2;
37.7
0.078
0.26
NRO
0.014
NRO
+OH
DEG02
24
17 45 43
-28 59 58.4
359.9570
-0.0511
G359.9568-0.0500
SiO359.957-0.051
SiO J=1-0 v=1;
51.1
0.202
0.951
NRO
0.022
NRO
+H
2
O
+OH
+SiO
MIXED
DEG02
25
17 45 43
-28 59 58.4
359.9570
-0.0511
G359.9568-0.0500
SiO359.957-0.051
SiO J=1-0 v=2;
54.4
0.16
0.852
NRO
0.025
NRO
+H
2
O
+OH
+SiO
MIXED
DEG02
26
17 45 43
-28 59 3.4
359.9700
-0.0431
G359.9700-0.0430
SiO359.970-0.043
SiO J=1-0 v=1;
23.3
0.311
1.037
NRO
0.021
NRO
+SiO
MIXED
DEG02
27
17 45 43
-28 59 3.4
359.9700
-0.0431
G359.9700-0.0430
SiO359.970-0.043
SiO J=1-0 v=2;
23.2
0.416
1.69
NRO
0.026
NRO
+SiO
MIXED
DEG02
28
17 45 44.6
-28 59 3.3
359.9730
-0.0481
G359.9703-0.0482
SiO359.973-0.048
SiO J=1-0 v=1;
86.9
0.161
0.686
NRO
0.021
NRO
+H
2
O
+OH
+SiO
MIXED
DEG02
29
17 45 44.6
-28 59 3.3
359.9730
-0.0481
G359.9703-0.0482
SiO359.973-0.048
SiO J=1-0 v=2;
86.5
0.152
0.915
NRO
0.026
NRO
+H
2
O
+OH
+SiO
MIXED
DEG02
Non-detection table from Deguchi et al. (2002)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Line
Date
Telescope
RMS
List
Detection
Class
Ref.
(J2000)
(J2000)
(deg.)
(deg.)
SiO
(Jy)
Yes
/
No
1
17 45 40.5
-29 00 24.6
359.9460
-0.0472
G359.9444-0.0464
SiO359.946-0.047
SiO J=1-0 v=1;
2000-05-26
NRO
0.009
NRO
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
MIXED
DEG02
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X
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
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select MAX(sio_data_all.ra_hms) as ra_hms,MAX(sio_data_all.dec_dms) as dec_dms,MAX(sio_data_all.source_name) as source_name,MAX(sio_data_all.ra) as ra,MAX(sio_data_all.dec) as dec,MAX(sio_data_all.l) as l,MAX(sio_data_all.b) as b,MAX(sio_data_all.grp) as grp,MAX(sio_data_all.other_name) as other_name,MAX(sio_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(sio_data_all.line) as line,MAX(sio_data_all.vrange) as vrange,MAX(sio_data_all.vpeak) as vpeak,MAX(sio_data_all.peak) as peak,MAX(sio_data_all.fwhm) as fwhm,MAX(sio_data_all.int) as int,MAX(sio_data_all.rms) as rms,MAX(sio_data_all.units) as units,MAX(sio_data_all.units_rms) as units_rms,MAX(sio_data_all.date_txt) as date_txt,MAX(sio_data_all.telescope_ref) as telescope_ref,MAX(sio_data_all.telescope_conf) as telescope_conf,MAX(sio_data_all.v_step) as v_step,MAX(sio_data_all.beam) as beam,MAX(sio_data_all.beam_maj) as beam_maj,MAX(sio_data_all.beam_min) as beam_min,MAX(sio_data_all.beam_pa) as beam_pa,MAX(sio_data_all.ref) as ref,MAX(sio_data_all.list_ref) as list_ref,MAX(sio_data_all.ascii) as ascii,MAX(sio_data_all.url) as url,MAX(sio_data_all.image) as image,MAX(sio_data_all.image2) as image2,MAX(sio_data_all.image3) as image3,MAX(sio_data_all.descr) as descr,MAX(sio_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(sio_data_all.dist) as dist,1 as dist_parallax,MAX(sio_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 sio_data_all LEFT JOIN all_objects_withmet ON sio_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' WHERE ref ilike 'DEG02' AND detected=true AND hide=false GROUP BY ref
select sio_data_all.ra_hms,sio_data_all.dec_dms,sio_data_all.source_name,sio_data_all.ra,sio_data_all.dec,sio_data_all.l,sio_data_all.b,sio_data_all.grp,sio_data_all.other_name,sio_data_all.other_desc,sio_data_all.thermal,sio_data_all.line,sio_data_all.vrange,sio_data_all.vpeak,sio_data_all.peak,sio_data_all.fwhm,sio_data_all.int,sio_data_all.rms,sio_data_all.units,sio_data_all.units_rms,sio_data_all.date_txt,sio_data_all.telescope_ref,sio_data_all.telescope_conf,sio_data_all.v_step,sio_data_all.beam,sio_data_all.beam_maj,sio_data_all.beam_min,sio_data_all.beam_pa,sio_data_all.ref,sio_data_all.list_ref,sio_data_all.ascii,sio_data_all.url,sio_data_all.image,sio_data_all.image2,sio_data_all.image3,sio_data_all.descr,sio_data_all.id,sio_data_all.mjy_flag,sio_data_all.rms_mjy_flag,sio_data_all.dist,sio_data_all.dist_parallax,sio_data_all.date_txt,line_det,type,simbad_types_cat FROM sio_data_all LEFT JOIN all_objects_withmet ON sio_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' WHERE ref ilike 'DEG02' AND detected=true AND hide=false ORDER BY detected DESC,id
