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H
2
O
SJO02 - H2O and SiO maser emission in Galactic center OH/IR stars $O and SiO maser emission in Galactic center OH/IR stars
Short title
: Sjouwerman et al. (2002)
Authors
: Sjouwerman, L. O. Lindqvist, M. van Langevelde, H. J. Diamond, P. J.
Journal
: Astronomy and Astrophysics, v.391, p.967-978 (2002)
Bibcode
:
2002A&A...391..967S
Abstract
We have performed targeted surveys for 22 GHz H
2
O and 43 GHz SiO maser emission in Galactic center OH/IR stars using the Very Large Array. Some of the detections have been used in a previous paper to investigate the possibility of measuring milli-arcsecond accurate positions (to obtain stellar proper motions) in the Galactic center. Here we report on the detection of at least 25 H
2
O masers and 18 SiO masers associated with stars within 2 degr and 15 arcmin of Sgr A*, respectively. This survey has more than doubled the total number of proper motion candidates to at least about 50 stellar objects. The stellar SiO masers are best suited for proper motion studies, although the initial OH, H
2
O or SiO maser positions may not be well enough determined to use for a-priori VLBI positions. Serendipitously we also found 8 H
2
O masers in the molecular cloud M-0.13-0.08. Figures 1 to 4 are only available in electronic form at
http://www.edpsciences.org.
Tables \ref{tab2}-\ref{tab4} are also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/391/967
Comments:
Sources associated with star-forming regions (SFR) were omitted
Peak flux densities Speak were assigned to velocities (vblue or vred) using the spectra.
Coordinates for sources from Table 5 taken from OH-Maser-Database.
Input tables
: J/A+A/391/967/table2.dat and Table 5
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:
Table (CSV)
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Detection table from Sjouwerman et al. (2002)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
V
peak
F
peak
∫F dv
RMS
Detection
(J2000)
(J2000)
(deg.)
(deg.)
(km/s)
(Jy)
(Jy*km/s)
(Jy)
Yes
/
No
1
17 43 45.6
-29 15 34.9
359.5119
0.1772
G359.513+0.176
OH359.508+0.179
-134.5
0.25
31.2
0.015
+H
2
O
+OH
2
17 43 46.8
-29 15 37.8
359.5134
0.1732
G359.513+0.176
OH359.513+0.174
114.2
0.23
51.9
0.015
+H
2
O
+OH
3
17 44 4.1
-29 19 54.9
359.4855
0.0822
G359.482+0.080
OH359.487+0.081
-74.2
0.3
32.6
0.015
+H
2
O
+CH
3
OH I
+OH
+SiO
4
17 44 7.4
-29 24 7.6
359.4320
0.0353
G359.429+0.036
OH359.429+0.035
-0.6
0.5
40.8
0.015
+H
2
O
-CH
3
OH II
+OH
5
17 44 27.7
-29 20 48.6
359.5176
0.0015
G359.518+0.001
OH359.517+0.001
-146.9
0.22
24.5
0.015
+H
2
O
+OH
6
17 44 28
-28 50 49.1
359.9444
0.2618
G359.944+0.262
OH359.943+0.260
-202.4
0.1
24.5
0.015
+H
2
O
7
17 44 44.5
-29 05 40.2
359.7648
0.0811
G359.985-0.050
OH359.765+0.082
93.1
0.17
92.7
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
8
17 44 45.8
-29 00 42.6
359.8378
0.1202
G359.837+0.120
OH359.837+0.120
-341.8
0.09
21.5
0.015
+H
2
O
+OH
9
17 44 46
-29 06 13.9
359.7596
0.0717
G359.985-0.050
OH359.760+0.072
-73.3
0.14
41.5
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
10
17 45 13.9
-28 47 42.1
0.0761
0.1462
G0.076+0.146
OH000.076+0.146
5.8
0.09
34.9
0.015
+H
2
O
+OH
-SiO
11
17 45 17.6
-28 48 36.5
0.0703
0.1266
G0.070+0.127
OH000.071+0.127
-52.8
0.2
20
0.015
+H
2
O
+OH
-SiO
12
17 45 19
-28 58 56.9
359.9258
0.0326
G359.985-0.050
OH359.924+0.034
-92.5
0.17
28.9
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
13
17 45 33.5
-29 02 16.2
359.9062
-0.0416
G359.985-0.050
OH359.906-0.041
-156.0
0.63
107.5
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
14
17 45 34.7
-29 06 2.7
359.8548
-0.0781
G359.985-0.050
OH359.855-0.078
21.8
0.16
112
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
15
17 45 38.4
-29 03 35.8
359.8966
-0.0682
G359.985-0.050
OH359.897-0.065
-132.1
0.08
8.2
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
16
17 45 40.7
-29 00 23.5
359.9465
-0.0475
G359.985-0.050
OH359.946-0.047
-44.3
0.46
51.2
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
17
17 45 42.7
-28 59 56.8
359.9568
-0.0501
G359.985-0.050
OH359.956-0.050
44.8
0.35
79.4
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
18
17 45 44.4
-28 59 13
359.9703
-0.0487
G359.985-0.050
OH359.970-0.049
92.2
0.07
17.1
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
19
17 45 49.2
-28 53 29.4
0.0610
-0.0142
G359.985-0.050
OH000.060-0.018
15.7
0.06
6.7
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
20
17 45 52.3
-28 48 14.1
0.1415
0.0220
G359.985-0.050
OH000.142+0.026
25.2
0.12
17.8
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
21
17 45 52.7
-29 14 33.3
359.7678
-0.2077
G359.768-0.208
OH359.768-0.207
-169.1
0.08
15.6
0.015
+H
2
O
22
17 45 54.1
-28 31 45.2
0.3795
0.1593
G0.379+0.159
OH000.379+0.159
139.3
0.12
13.4
0.015
+H
2
O
+OH
23
17 45 55.3
-28 45 27.2
0.1869
0.0366
G359.985-0.050
OH000.190+0.036
143.4
0.11
10.4
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
24
17 45 56.1
-28 55 51.7
0.0403
-0.0562
G359.985-0.050
OH000.040-0.056
56.9
0.24
42.3
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
25
17 45 57.6
-29 19 9.8
359.7114
-0.2628
G359.711-0.263
OH359.712-0.263
-17.0
0.35
59.3
0.015
+H
2
O
26
17 46 01
-29 01 23
359.9710
-0.1193
G359.985-0.050
OH359.971-0.119
-23.0
0.09
19.3
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
27
17 46 1.4
-28 50 6.6
0.1322
-0.0228
G359.985-0.050
OH000.134-0.023
-40.2
0.18
32.6
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
28
17 46 15
-28 36 46.9
0.3477
0.0504
G0.348+0.050
OH000.349+0.053
39.7
0.29
26
0.015
+H
2
O
+OH
29
17 46 15.8
-28 48 35.6
0.1812
-0.0546
G359.985-0.050
OH000.178-0.055
-23.7
0.11
25.2
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
+SiO
30
17 46 35.6
-29 21 49.7
359.7454
-0.4040
G359.745-0.404
OH359.745-0.404
173.3
0.18
31.2
0.015
+H
2
O
+OH
31
17 46 35.7
-28 58 58.4
0.0711
-0.2065
G0.060-0.207
OH000.071-0.205
110.1
0.1
5.2
0.015
+H
2
O
-SiO
32
17 46 38.3
-29 19 24.7
359.7849
-0.3915
G359.785-0.392
OH359.783-0.392
209.0
0.1
6.7
0.015
+H
2
O
33
17 47 4.9
-28 29 39.8
0.5440
-0.0442
G0.549-0.057
OH000.543-0.043
-16.6
1.2
297.4
0.015
+H
2
O
+OH
+SiO
34
17 47 9.1
-28 29 51.7
0.5491
-0.0590
G0.549-0.057
OH000.548-0.059
-16.5
0.4
34.9
0.015
+H
2
O
+OH
+SiO
35
17 47 25.6
-28 29 20.7
0.5879
-0.1064
G0.588-0.106
OH000.589-0.108
-189.5
0.32
48.2
0.015
+H
2
O
+OH
Get selected data
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
2MASS K
select MAX(h2o_data_all.ra_hms) as ra_hms,MAX(h2o_data_all.dec_dms) as dec_dms,MAX(h2o_data_all.source_name) as source_name,MAX(h2o_data_all.ra) as ra,MAX(h2o_data_all.dec) as dec,MAX(h2o_data_all.l) as l,MAX(h2o_data_all.b) as b,MAX(h2o_data_all.grp) as grp,MAX(h2o_data_all.other_name) as other_name,MAX(h2o_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(h2o_data_all.vrange) as vrange,MAX(h2o_data_all.vpeak) as vpeak,MAX(h2o_data_all.peak) as peak,MAX(h2o_data_all.fwhm) as fwhm,MAX(h2o_data_all.int) as int,MAX(h2o_data_all.rms) as rms,MAX(h2o_data_all.units) as units,MAX(h2o_data_all.units_rms) as units_rms,MAX(h2o_data_all.date_txt) as date_txt,MAX(h2o_data_all.telescope_ref) as telescope_ref,MAX(h2o_data_all.beam) as beam,MAX(h2o_data_all.beam_maj) as beam_maj,MAX(h2o_data_all.beam_min) as beam_min,MAX(h2o_data_all.beam_pa) as beam_pa,MAX(h2o_data_all.ref) as ref,MAX(h2o_data_all.list_ref) as list_ref,MAX(h2o_data_all.ascii) as ascii,MAX(h2o_data_all.image) as image,MAX(h2o_data_all.descr) as descr,MAX(h2o_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(h2o_data_all.dist) as dist,MAX(h2o_data_all.date_txt) as date_txt,MAX(line_det) as line_det FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_data_all.grp=all_objects_withmet.group_name WHERE ref ilike 'SJO02' AND detected=true AND hide=false GROUP BY ref
select h2o_data_all.ra_hms,h2o_data_all.dec_dms,h2o_data_all.source_name,h2o_data_all.ra,h2o_data_all.dec,h2o_data_all.l,h2o_data_all.b,h2o_data_all.grp,h2o_data_all.other_name,h2o_data_all.other_desc,h2o_data_all.thermal,h2o_data_all.vrange,h2o_data_all.vpeak,h2o_data_all.peak,h2o_data_all.fwhm,h2o_data_all.int,h2o_data_all.rms,h2o_data_all.units,h2o_data_all.units_rms,h2o_data_all.date_txt,h2o_data_all.telescope_ref,h2o_data_all.beam,h2o_data_all.beam_maj,h2o_data_all.beam_min,h2o_data_all.beam_pa,h2o_data_all.ref,h2o_data_all.list_ref,h2o_data_all.ascii,h2o_data_all.image,h2o_data_all.descr,h2o_data_all.id,h2o_data_all.mjy_flag,h2o_data_all.rms_mjy_flag,h2o_data_all.dist,h2o_data_all.date_txt,line_det FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_data_all.grp=all_objects_withmet.group_name WHERE ref ilike 'SJO02' AND detected=true AND hide=false ORDER BY detected DESC,id
