the Extensive Database of Astrophysical Maser Sources

Abstract
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 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, 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. 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.

ID	Obs. RA	Obs. Dec	l	b	Source name	V_peak	F_peak	∫F dv	Date	RMS
	(J2000)	(J2000)	(deg.)	(deg.)		(km/s)	(Jy)	(Jy*km/s)		(Jy)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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

Group name	Line detection (H₂O, OH, SiO, CH₃OH (I), CH₃OH (II))
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)
Continuum	Continuum coordinates (RA, Dec)	Continuum parameters
Bolocam GPS	Bolocam coordinates (RA, Dec)	Bolocam parameters
Extended Green Objects	EGO coordinates (RA, Dec)	EGO parameters

DSS (optical)	2MASS (JHK)	WISE (4-22 um)	IRAC (3-8 um)	GLIMPSE 360 (3.6-4.5 um)	PACS color (70-160 um)	SPIRE color (250-500 um)
AKARI color (60-160 um)	NVSS (1.4 GHz)	SDSS (optical+NIR)	Image size: arcsec (default is 120 arcsec)
			Image size: arcsec (default is 120 arcsec)

Display data from paper

SJO02 - H2O and SiO maser emission in Galactic center OH/IR stars $O and SiO maser emission in Galactic center OH/IR stars

View paper statistics

Detection table from Sjouwerman et al. (2002)