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Data:
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
PDF
:
SJO02.pdf
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 paper statistics
Detection table from Sjouwerman et al. (2002)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
V
peak
F
peak
∫F dv
Date
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
OH359.508+0.179
-134.5
0.25
31.2
1993-07-08
0.015
+H
2
O
+OH
2
17 43 46.8
-29 15 37.8
359.5134
0.1732
OH359.513+0.174
114.2
0.23
51.9
1993-07-10
0.015
+OH
3
17 44 4.1
-29 19 54.9
359.4855
0.0822
OH359.487+0.081
-74.2
0.3
32.6
1993-07-06
0.015
+H
2
O
+CH
3
OH I
+OH
+SiO
4
17 44 7.4
-29 24 7.6
359.4320
0.0353
OH359.429+0.035
-0.6
0.5
40.8
1993-07-06
0.015
+H
2
O
+OH
5
17 44 27.7
-29 20 48.6
359.5176
0.0015
OH359.517+0.001
-146.9
0.22
24.5
1993-07-06
0.015
+H
2
O
+CH
3
OH I
+OH
6
17 44 28
-28 50 49.1
359.9444
0.2618
OH359.943+0.260
-202.4
0.1
24.5
1993-07-06
0.015
+H
2
O
+OH
7
17 44 44.5
-29 05 40.2
359.7648
0.0811
OH359.765+0.082
93.1
0.17
92.7
1993-07-10
0.015
+H
2
O
+CH
3
OH I
+OH
-SiO
+SiO
8
17 44 45.8
-29 00 42.6
359.8378
0.1202
OH359.837+0.120
-341.8
0.09
21.5
1993-07-06
0.015
+H
2
O
+OH
+SiO
9
17 44 46
-29 06 13.9
359.7596
0.0717
OH359.760+0.072
-73.3
0.14
41.5
1993-07-10
0.015
+H
2
O
+OH
-SiO
10
17 45 13.9
-28 47 42.1
0.0761
0.1462
OH000.076+0.146
5.8
0.09
34.9
1993-07-08
0.015
+H
2
O
+OH
-SiO
11
17 45 17.6
-28 48 36.5
0.0703
0.1266
OH000.071+0.127
-52.8
0.2
20
1993-07-10
0.015
+H
2
O
+OH
12
17 45 19
-28 58 56.9
359.9258
0.0326
OH359.924+0.034
-92.5
0.17
28.9
1993-07-10
0.015
+H
2
O
+CH
3
OH I
+OH
-SiO
+SiO
13
17 45 33.5
-29 02 16.2
359.9062
-0.0416
OH359.906-0.041
-156.0
0.63
107.5
1994-05-20
0.015
+H
2
O
+CH
3
OH I
+OH
+SiO
14
17 45 34.7
-29 06 2.7
359.8548
-0.0781
OH359.855-0.078
21.8
0.16
112
1993-07-06
0.015
+H
2
O
+OH
+SiO
15
17 45 38.4
-29 03 35.8
359.8966
-0.0682
OH359.897-0.065
-132.1
0.08
8.2
1994-05-20
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
OH359.946-0.047
-44.3
0.46
51.2
1994-05-20
0.015
+H
2
O
-CH
3
OH I
+CH
3
OH I
-OH
+OH
-SiO
+SiO
17
17 45 42.7
-28 59 56.8
359.9568
-0.0501
OH359.956-0.050
44.8
0.35
79.4
1993-07-10
0.015
+H
2
O
-CH
3
OH I
+OH
+SiO
18
17 45 44.4
-28 59 13
359.9703
-0.0487
OH359.970-0.049
92.2
0.07
17.1
1994-05-20
0.015
+H
2
O
-CH
3
OH I
+OH
+SiO
19
17 45 49.2
-28 53 29.4
0.0610
-0.0142
OH000.060-0.018
15.7
0.06
6.7
1994-05-20
0.015
+H
2
O
+CH
3
OH I
+OH
-SiO
+SiO
20
17 45 52.3
-28 48 14.1
0.1415
0.0220
OH000.142+0.026
25.2
0.12
17.8
1993-07-08
0.015
+H
2
O
+OH
-SiO
+SiO
21
17 45 52.7
-29 14 33.3
359.7678
-0.2077
OH359.768-0.207
-169.1
0.08
15.6
1993-07-06
0.015
+H
2
O
+OH
+SiO
22
17 45 54.1
-28 31 45.2
0.3795
0.1593
OH000.379+0.159
139.3
0.12
13.4
1993-07-06
0.015
+H
2
O
+OH
23
17 45 55.3
-28 45 27.2
0.1869
0.0366
OH000.190+0.036
143.4
0.11
10.4
1993-07-06
0.015
+H
2
O
+OH
-SiO
24
17 45 56.1
-28 55 51.7
0.0403
-0.0562
OH000.040-0.056
56.9
0.24
42.3
1994-05-20
0.015
+H
2
O
+OH
-SiO
+SiO
25
17 45 57.6
-29 19 9.8
359.7114
-0.2628
OH359.712-0.263
-17.0
0.35
59.3
1993-07-10
0.015
+H
2
O
+OH
26
17 46 01
-29 01 23
359.9710
-0.1193
OH359.971-0.119
-23.0
0.09
19.3
1994-05-20
0.015
+H
2
O
+OH
-SiO
+SiO
27
17 46 1.4
-28 50 6.6
0.1322
-0.0228
OH000.134-0.023
-40.2
0.18
32.6
1993-07-10
0.015
+H
2
O
+OH
-SiO
+SiO
28
17 46 15
-28 36 46.9
0.3477
0.0504
OH000.349+0.053
39.7
0.29
26
1993-07-10
0.015
+H
2
O
+OH
29
17 46 15.8
-28 48 35.6
0.1812
-0.0546
OH000.178-0.055
-23.7
0.11
25.2
1993-07-06
0.015
+H
2
O
+CH
3
OH I
+SiO
30
17 46 35.6
-29 21 49.7
359.7454
-0.4040
OH359.745-0.404
173.3
0.18
31.2
1993-07-08
0.015
+H
2
O
+OH
31
17 46 35.7
-28 58 58.4
0.0711
-0.2065
OH000.071-0.205
110.1
0.1
5.2
1993-07-06
0.015
+H
2
O
+SiO
32
17 46 38.3
-29 19 24.7
359.7849
-0.3915
OH359.783-0.392
209.0
0.1
6.7
1993-07-06
0.015
+H
2
O
+OH
33
17 47 4.9
-28 29 39.8
0.5440
-0.0442
OH000.543-0.043
-16.6
1.2
297.4
1993-07-08
0.015
+H
2
O
+OH
34
17 47 9.1
-28 29 51.7
0.5491
-0.0590
OH000.548-0.059
-16.5
0.4
34.9
1993-07-10
0.015
+H
2
O
+OH
+SiO
35
17 47 25.6
-28 29 20.7
0.5879
-0.1064
OH000.589-0.108
-189.5
0.32
48.2
1993-07-10
0.015
+H
2
O
+OH
Display associated data
IRAS source
IRAS coordinates (RA, Dec)
IRAS flux density (F12,F25,F60,F100)
2MASS source
2MASS coordinates (RA, Dec)
2MASS magnituted (J,H,K)
Variable star
Variable star parameters
Star Formation Region name
Star Formation Region parameters
WISE source
WISE coordinates (RA, Dec)
WISE magnitudes (w1, w2, w3, w4)
Akari IRC source
Akari IRC coordinates (RA, Dec)
Akari IRC fluxes (S09, S18)
Akari FIS source
Akari FIS coordinates (RA, Dec)
Akari FIS fluxes (S65, S90, S140, S160)
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2
O maser detection
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SJO02.pdf
