2002A&A...391..967S

Query : 2002A&A...391..967S

2002A&A...391..967S - Astronomy and Astrophysics, volume 391967-978 (2002/9-1)

H2O and SiO maser emission in Galactic center OH/IR stars.

SJOUWERMAN L.O., LINDQVIST M., VAN LANGEVELDE H.J. and DIAMOND P.J.

Abstract (from CDS):

We have performed targeted surveys for 22 GHz H2O 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 H2O masers and 18 SiO masers associated with stars within 2° and 15' 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, H2O or SiO maser positions may not be well enough determined to use for a-priori VLBI positions. Serendipitously we also found 8 H2O masers in the molecular cloud M-0.13-0.08.

Abstract Copyright: ∼

Journal keyword(s): masers - surveys - astrometry - stars: AGB and post-AGB - galaxy: center

VizieR on-line data: <Available at CDS (J/A+A/391/967): table2.dat table3.dat table4.dat>

Nomenclature: Tables 2, 3: [SLV2002] H2O LLL.lll+B.bbb N=37+7. Table 4: [SLV2002] SiO LLL.lll+B.bbb N=18.

Simbad objects: 85

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Number of rows : 85
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 G 165-7 WD* 13 30 59.4185829051 +30 29 53.651822645   16.73 16.04 15.74 15.60 DZ7 84 0
2 QSO B1730-130 Bla 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1198 1
3 OH 359.508+00.179 OH* 17 43 44.73864 -29 15 44.6328           O-rich 9 0
4 [SLV2002] H2O 359.508+0.179 Mas 17 43 45.624 -29 15 34.86           ~ 1 0
5 OH 359.513+00.174 OH* 17 43 46.72704 -29 15 38.4444           O-rich 10 0
6 [SLV2002] H2O 359.487+0.081 Mas 17 44 04.098 -29 19 54.90           ~ 1 0
7 OH 359.487+00.081 OH* 17 44 04.69392 -29 19 53.8428           O-rich 6 0
8 OH 359.4+00.0 OH* 17 44 06.89688 -29 24 16.7796           O-rich 18 1
9 QSO J1744-3116 Bla 17 44 23.57824 -31 16 36.2943           ~ 168 1
10 OH 359.517+00.001 OH* 17 44 27.78672 -29 20 50.0028           O-rich 8 0
11 OH 359.943+00.260 OH* 17 44 28.16184 -28 50 55.9032           O-rich 12 0
12 OH 359.675+00.069 OH* 17 44 34.32672 -29 10 38.5932           O-rich 24 0
13 OH 359.76+00.12 OH* 17 44 34.96176 -29 04 35.6736           O-rich 33 0
14 OH 359.765+00.082 OH* 17 44 44.43144 -29 05 37.9176           O-rich 13 0
15 [SLV2002] H2O 359.837+0.120 Mas 17 44 45.842 -29 00 42.59           ~ 1 0
16 OH 359.760+00.072 OH* 17 44 45.96000 -29 06 13.6296           O-rich 10 0
17 OH 359.836+00.119 OH* 17 44 45.96648 -29 00 50.8536           O-rich 9 0
18 OH 359.974+00.162 OH* 17 44 55.61736 -28 52 27.0336           O-rich 15 0
19 OH 359.678-00.024 OH* 17 44 56.83272 -29 13 25.5108           O-rich 20 0
20 OH 359.778+00.010 OH* 17 45 03.20016 -29 07 12.6408           O-rich 15 0
21 OH 359.902+00.061 OH* 17 45 08.83752 -28 59 16.6812           O-rich 11 0
22 OH 359.763-00.042 OH* 17 45 13.06800 -29 09 36.3276           O-rich 13 0
23 OH 359.803-00.021 OH* 17 45 13.87752 -29 06 55.4040           O-rich 9 0
24 OH 000.076+00.146 OH* 17 45 13.90608 -28 47 43.2024           O-rich 20 0
25 OH 000.071+00.127 OH* 17 45 17.55768 -28 48 36.1512           O-rich 6 0
26 OH 359.825-00.024 OH* 17 45 17.82792 -29 05 53.3400           O-rich 22 0
27 OH 359.924+00.034 OH* 17 45 18.93840 -28 58 57.5436           O-rich 12 0
28 GCM -0.13 -0.08 MoC 17 45 25.2 -29 05 30           ~ 141 1
29 OH 359.810-00.070 OH* 17 45 26.35344 -29 08 03.9336           O-rich 20 0
30 OH 359.906-00.041 OH* 17 45 33.46368 -29 02 16.4616           O-rich 25 0
31 OH 000.083+00.064 OH* 17 45 34.25280 -28 49 55.9992           O-rich 10 0
32 OH 359.855-00.078 OH* 17 45 34.78560 -29 06 02.6784           O-rich 18 0
33 [SLV2002] H2O 359.859-0.079 Mas 17 45 35.461 -29 05 47.86           ~ 1 0
34 [SLV2002] H2O 359.861-0.082 Mas 17 45 36.297 -29 05 49.63           ~ 1 0
35 [SLV2002] H2O 359.864-0.083 Mas 17 45 37.214 -29 05 41.48           ~ 1 0
36 [SLV2002] H2O 359.864-0.084 Mas 17 45 37.458 -29 05 44.28           ~ 1 0
37 [SLV2002] H2O 359.864-0.085 Mas 17 45 37.676 -29 05 43.80           ~ 1 0
38 [SLV2002] H2O 359.874-0.079 Mas 17 45 37.754 -29 05 02.99           ~ 1 0
39 JCMTSF J174537.6-290538 Mas 17 45 37.832 -29 05 42.88           ~ 2 0
40 OH 359.955-00.031 OH* 17 45 37.90920 -28 59 26.4516           O-rich 13 0
41 OH 359.90-00.07 OH* 17 45 38.396 -29 03 35.83           ~ 4 0
42 OH 359.952-00.036 OH* 17 45 38.58672 -28 59 45.6180           O-rich 13 0
43 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
44 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
45 OH 359.954-00.041 OH* 17 45 40.13280 -28 59 47.7636           O-rich 23 0
46 OH 359.94-00.05 OH* 17 45 40.61208 -29 00 55.5084           O-rich 23 0
47 OH 359.946-00.047 OH* 17 45 40.63 -29 00 23.5           O-rich 65 0
48 OH 359.88-00.09 OH* 17 45 40.73880 -29 05 02.6196           O-rich 26 1
49 GCIRS 23 OH* 17 45 42.70512 -28 59 57.6708           M7+III 27 0
50 OH 359.970-00.049 OH* 17 45 44.31912 -28 59 13.2720           O-rich 15 0
51 [SLV2002] H2O 000.060-0.018 Mas 17 45 49.244 -28 53 29.43           ~ 1 0
52 OH 359.986-00.061 OH* 17 45 49.40544 -28 58 49.4400           O-rich 28 0
53 OH 000.06-00.02 OH* 17 45 49.90032 -28 53 39.2424           O-rich 18 0
54 OH 000.142+00.026 OH* 17 45 51.32568 -28 48 06.7536           O-rich 18 0
55 OH 000.189+00.052 OH* 17 45 51.90744 -28 44 51.4680           O-rich 17 0
56 OH 359.768-00.207 OH* 17 45 52.62048 -29 14 30.4188           O-rich 8 0
57 OH 000.38+00.13 OH* 17 45 54.18120 -28 31 45.9984           O-rich 17 0
58 OH 359.977-00.087 OH* 17 45 54.31368 -29 00 02.7576           O-rich 16 0
59 OH 000.2+00.0 OH* 17 45 55.83024 -28 45 18.9648           O-rich 44 0
60 OH 000.040-00.056 OH* 17 45 56.08032 -28 55 52.0464           O-rich 19 0
61 OH 359.712-00.263 Mas 17 45 57.490 -29 19 09.58           ~ 4 0
62 OH 000.007-00.088 OH* 17 45 58.90128 -28 58 35.0220           O-rich 11 0
63 OH 000.053-00.062 OH* 17 45 59.47152 -28 55 23.6316           M5-M9III-V 18 0
64 OH 000.129-00.020 OH* 17 46 00.25392 -28 50 11.7780           O-rich 14 0
65 OH 359.97-00.12 OH* 17 46 00.92304 -29 01 23.2428           O-rich 22 0
66 OH 000.134-00.023 OH* 17 46 01.60032 -28 50 00.6072           O-rich 13 0
67 OH 359.936-00.144 OH* 17 46 01.94184 -29 03 58.9716           O-rich 12 0
68 OH 000.113-00.060 OH* 17 46 07.42968 -28 52 16.8384           O-rich 12 0
69 OH 359.873-00.209 OH* 17 46 08.09184 -29 09 14.5836           O-rich 10 0
70 OH 359.996-00.144 OH* 17 46 10.31472 -29 00 51.4440           O-rich 7 0
71 [SLV2002] SiO 359.996-0.144 Mas 17 46 10.413 -29 00 51.17           ~ 1 0
72 OH 000.349+00.053 OH* 17 46 14.47536 -28 36 39.5388           O-rich 12 0
73 [SLV2002] H2O 000.349+0.053 Mas 17 46 14.959 -28 36 46.92           ~ 1 0
74 OH 000.079-00.114 OH* 17 46 15.25008 -28 55 42.3588           O-rich 15 0
75 OH 000.178-00.055 OH* 17 46 15.34560 -28 48 47.7252           O-rich 15 0
76 JCMTSE J174616.0-284842 Mas 17 46 15.825 -28 48 35.62           ~ 3 0
77 OH 359.751-00.371 Mas 17 46 28.600 -29 20 30.26           ~ 2 0
78 OH 000.03-00.13 OH* 17 46 35.34168 -28 58 57.3168           O-rich 20 1
79 OH 359.7-00.4 OH* 17 46 35.60496 -29 21 51.4188           O-rich 13 1
80 OH 359.8-00.4 OH* 17 46 38.12064 -29 19 30.6768           O-rich 15 1
81 [SLV2002] H2O 359.783-0.392 Mas 17 46 38.348 -29 19 24.66           ~ 1 0
82 OH 000.543-00.043 OH? 17 47 04.897 -28 29 39.78           O-rich 3 0
83 OH 000.548-00.059 OH* 17 47 08.98176 -28 29 56.1264           O-rich 28 0
84 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
85 OH 000.589-00.108 OH* 17 47 26.29680 -28 29 20.5188           O-rich 4 0

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