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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
Target type
: star
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
Download as
:
Table (CSV)
View as list of objects
Detection table from Sjouwerman et al. (2002)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Line
V
peak
F
peak
∫F dv
Telescope
RMS
Detection
Class
Dist. (parallax)
(J2000)
(J2000)
(deg.)
(deg.)
H
2
O
(km/s)
(Jy)
(Jy*km/s)
(Jy)
Yes
/
No
(kpc)
1
17 43 45.6
-29 15 34.9
359.5119
0.1772
G359.5119+0.1772
OH359.508+0.179
22 GHz
;
-134.5
0.25
31.2
NRAOVLA
0.015
+H
2
O
EVOLVED
2
17 43 46.8
-29 15 37.8
359.5134
0.1732
G359.5134+0.1732
OH359.513+0.174
22 GHz
;
114.2
0.23
51.9
NRAOVLA
0.015
+H
2
O
+OH
EVOLVED
3
17 44 4.1
-29 19 54.9
359.4855
0.0822
G359.4869+0.0808
OH359.487+0.081
22 GHz
;
-74.2
0.3
32.6
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
4
17 44 7.4
-29 24 7.6
359.4320
0.0353
G359.4292+0.0355
OH359.429+0.035
22 GHz
;
-0.6
0.5
40.8
NRAOVLA
0.015
+H
2
O
SFR_MIXED
5
17 44 27.7
-29 20 48.6
359.5176
0.0015
G359.5176+0.0015
OH359.517+0.001
22 GHz
;
-146.9
0.22
24.5
NRAOVLA
0.015
+H
2
O
+OH
SFR_MIXED
6
17 44 28
-28 50 49.1
359.9444
0.2618
G359.9444+0.2618
OH359.943+0.260
22 GHz
;
-202.4
0.1
24.5
NRAOVLA
0.015
+H
2
O
EVOLVED
7
17 44 44.5
-29 05 40.2
359.7648
0.0811
G359.7651+0.0817
OH359.765+0.082
22 GHz
;
93.1
0.17
92.7
NRAOVLA
0.015
+H
2
O
+OH
+SiO
EVOLVED
8
17 44 45.8
-29 00 42.6
359.8378
0.1202
G359.8374+0.1202
OH359.837+0.120
22 GHz
;
-341.8
0.09
21.5
NRAOVLA
0.015
+H
2
O
+OH
SFR_MIXED
9
17 44 46
-29 06 13.9
359.7596
0.0717
G359.7596+0.0717
OH359.760+0.072
22 GHz
;
-73.3
0.14
41.5
NRAOVLA
0.015
+H
2
O
+OH
SFR_MIXED
10
17 45 13.9
-28 47 42.1
0.0761
0.1462
G0.0760+0.1461
OH000.076+0.146
22 GHz
;
5.8
0.09
34.9
NRAOVLA
0.015
+H
2
O
+OH
-SiO
SFR_MIXED
11
17 45 17.6
-28 48 36.5
0.0703
0.1266
G0.0703+0.1268
OH000.071+0.127
22 GHz
;
-52.8
0.2
20
NRAOVLA
0.015
+H
2
O
+OH
SFR_MIXED
12
17 45 19
-28 58 56.9
359.9258
0.0326
G359.9256+0.0326
OH359.924+0.034
22 GHz
;
-92.5
0.17
28.9
NRAOVLA
0.015
+H
2
O
+OH
-SiO
SFR_MIXED
13
17 45 33.5
-29 02 16.2
359.9062
-0.0416
G359.9061-0.0412
OH359.906-0.041
22 GHz
;
-156.0
0.63
107.5
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
14
17 45 34.7
-29 06 2.7
359.8548
-0.0781
G359.8548-0.0780
OH359.855-0.078
22 GHz
;
21.8
0.16
112
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
15
17 45 38.4
-29 03 35.8
359.8966
-0.0682
G359.8928-0.0671
OH359.897-0.065
22 GHz
;
-132.1
0.08
8.2
NRAOVLA
0.015
+H
2
O
+CH
3
OH I
+CH
3
OH II
+SiO
SFR_MIXED
16
17 45 40.7
-29 00 23.5
359.9465
-0.0475
G359.9444-0.0464
OH359.946-0.047
22 GHz
;
-44.3
0.46
51.2
NRAOVLA
0.015
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR_MIXED
17
17 45 42.7
-28 59 56.8
359.9568
-0.0501
G359.9568-0.0500
OH359.956-0.050
22 GHz
;
44.8
0.35
79.4
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
18
17 45 44.4
-28 59 13
359.9703
-0.0487
G359.9703-0.0482
OH359.970-0.049
22 GHz
;
92.2
0.07
17.1
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
19
17 45 49.2
-28 53 29.4
0.0610
-0.0142
G0.0600-0.0178
OH000.060-0.018
22 GHz
;
15.7
0.06
6.7
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
20
17 45 52.3
-28 48 14.1
0.1415
0.0220
G0.1415+0.0220
OH000.142+0.026
22 GHz
;
25.2
0.12
17.8
NRAOVLA
0.015
+H
2
O
SFR_MIXED
21
17 45 52.7
-29 14 33.3
359.7678
-0.2077
G359.7678-0.2077
OH359.768-0.207
22 GHz
;
-169.1
0.08
15.6
NRAOVLA
0.015
+H
2
O
SFR_MIXED
22
17 45 54.1
-28 31 45.2
0.3795
0.1593
G0.3794+0.1590
OH000.379+0.159
22 GHz
;
139.3
0.12
13.4
NRAOVLA
0.015
+H
2
O
+OH
EVOLVED
23
17 45 55.3
-28 45 27.2
0.1869
0.0366
G0.1899+0.0363
OH000.190+0.036
22 GHz
;
143.4
0.11
10.4
NRAOVLA
0.015
+H
2
O
+OH
-SiO
SFR_MIXED
24
17 45 56.1
-28 55 51.7
0.0403
-0.0562
G0.0401-0.0560
OH000.040-0.056
22 GHz
;
56.9
0.24
42.3
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
25
17 45 57.6
-29 19 9.8
359.7114
-0.2628
G359.7114-0.2628
OH359.712-0.263
22 GHz
;
-17.0
0.35
59.3
NRAOVLA
0.015
+H
2
O
SFR
26
17 46 01
-29 01 23
359.9710
-0.1193
G359.9708-0.1190
OH359.971-0.119
22 GHz
;
-23.0
0.09
19.3
NRAOVLA
0.015
+H
2
O
+OH
-SiO
SFR_MIXED
27
17 46 1.4
-28 50 6.6
0.1322
-0.0228
G0.1340-0.0226
OH000.134-0.023
22 GHz
;
-40.2
0.18
32.6
NRAOVLA
0.015
+H
2
O
+OH
-SiO
SFR_MIXED
28
17 46 15
-28 36 46.9
0.3477
0.0504
G0.3477+0.0504
OH000.349+0.053
22 GHz
;
39.7
0.29
26
NRAOVLA
0.015
+H
2
O
SFR_MIXED
29
17 46 15.8
-28 48 35.6
0.1812
-0.0546
G0.1812-0.0546
OH000.178-0.055
22 GHz
;
-23.7
0.11
25.2
NRAOVLA
0.015
+H
2
O
SFR_MIXED
30
17 46 35.6
-29 21 49.7
359.7454
-0.4040
G359.7454-0.4040
OH359.745-0.404
22 GHz
;
173.3
0.18
31.2
NRAOVLA
0.015
+H
2
O
SFR_MIXED
31
17 46 35.7
-28 58 58.4
0.0711
-0.2065
G0.0711-0.2065
OH000.071-0.205
22 GHz
;
110.1
0.1
5.2
NRAOVLA
0.015
+H
2
O
SFR_MIXED
32
17 46 38.3
-29 19 24.7
359.7849
-0.3915
G359.7849-0.3915
OH359.783-0.392
22 GHz
;
209.0
0.1
6.7
NRAOVLA
0.015
+H
2
O
EVOLVED
33
17 47 4.9
-28 29 39.8
0.5440
-0.0442
G0.5440-0.0442
OH000.543-0.043
22 GHz
;
-16.6
1.2
297.4
NRAOVLA
0.015
+H
2
O
+OH
SFR
34
17 47 9.1
-28 29 51.7
0.5491
-0.0590
G0.5488-0.0566
OH000.548-0.059
22 GHz
;
-16.5
0.4
34.9
NRAOVLA
0.015
+H
2
O
+OH
+SiO
SFR_MIXED
35
17 47 25.6
-28 29 20.7
0.5879
-0.1064
G0.5879-0.1064
OH000.589-0.108
22 GHz
;
-189.5
0.32
48.2
NRAOVLA
0.015
+H
2
O
+OH
SFR_MIXED
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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.line) as line,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.telescope_conf) as telescope_conf,MAX(h2o_data_all.v_step) as v_step,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.url) as url,MAX(h2o_data_all.image) as image,MAX(h2o_data_all.image2) as image2,MAX(h2o_data_all.image3) as image3,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,1 as dist_parallax,MAX(h2o_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 h2o_data_all LEFT JOIN all_objects_withmet ON h2o_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 h2o_data_all.line=transitions."Line" 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.line,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.telescope_conf,h2o_data_all.v_step,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.url,h2o_data_all.image,h2o_data_all.image2,h2o_data_all.image3,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.dist_parallax,h2o_data_all.date_txt,line_det,type,simbad_types_cat FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_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 h2o_data_all.line=transitions."Line" WHERE ref ilike 'SJO02' AND detected=true AND hide=false ORDER BY detected DESC,id
