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IZU94 - SiO maser survey of the Galactic bulge IRAS sources. 1: The 7 deg less than absolute value of B less than 8 deg strips

Short title: Izumiura et al. (1994)
Authors: Izumiura, H. Deguchi, S. Hashimoto, O. Nakada, Y. Onaka, T. Ono, T. Ukita, N. Yamamura, I.
Journal: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 437, no. 1, p. 419-435
Bibcode:

Non-detection table: Show non-detection table
Detection table: Show detection table (105 detection) Non-detection table: Show non-detection table (77 non-detection)

Abstract
We have surveyed Galactic bulge IRAS sources in the strips between -15 deg less than l less than 15 deg and 7 deg less than absolute value of b less than 8 deg in the SiO J = 1-0 v = 1 and 2 transitions. The sources were selected from the IRAS Point Source Catalogue based on the IRAS 12 and 25 micron flux densities, extractive dust-enshrouded objects at a distance of 8 kpc. SiO masers were detected in 53 of the 91 sources surveyed in these strips. Because distances to the IRAS sources in these strips have been known from the period-luminosity relation and periods of intensity variation at infrared wavelengths measured by others, the contamination by foreground sources in the sample can be checked relatively easily and the uncertainty in deriving physical parameters of the bulge is minimized. The detection rate of SiO masers does not depend much on the infrared colors in the selected color range (logarithm of the IRAS 25 to 12 micron flux density ratio between -0.15 and 0.3) and the detection rate increases with the 12 micron flux density of the IRAS sources. It has been found that the intrinsic SiO maser intensity depends weakly on the mass-loss rate for the bulge and disk SiO maser sources. No systematic difference of the SiO maser properties is found between bulge and disk sources. The radial velocities in the northern strip are shifted systematically from those in the southern strip by about 50 km/s. If this velocity shift is interpreted as due to a tilt of the bulge rotation axis to the galactic longitude circle, the tilt angle of the rotation of the bulge would be 18 deg ^{-18 deg_-14 deg}. The angular rotation velocity of the bulge stellar system is 7.3 x 10⁸ rad/yr (implying the rotation period of 8.6 x 10⁷ yr). A Galactic top view of the distribution and the velocity vectors of the bulge SiO masers is given.

Abstract

We have surveyed Galactic bulge IRAS sources in the strips between -15 deg less than l less than 15 deg and 7 deg less than absolute value of b less than 8 deg in the SiO J = 1-0 v = 1 and 2 transitions. The sources were selected from the IRAS Point Source Catalogue based on the IRAS 12 and 25 micron flux densities, extractive dust-enshrouded objects at a distance of 8 kpc. SiO masers were detected in 53 of the 91 sources surveyed in these strips. Because distances to the IRAS sources in these strips have been known from the period-luminosity relation and periods of intensity variation at infrared wavelengths measured by others, the contamination by foreground sources in the sample can be checked relatively easily and the uncertainty in deriving physical parameters of the bulge is minimized. The detection rate of SiO masers does not depend much on the infrared colors in the selected color range (logarithm of the IRAS 25 to 12 micron flux density ratio between -0.15 and 0.3) and the detection rate increases with the 12 micron flux density of the IRAS sources. It has been found that the intrinsic SiO maser intensity depends weakly on the mass-loss rate for the bulge and disk SiO maser sources. No systematic difference of the SiO maser properties is found between bulge and disk sources. The radial velocities in the northern strip are shifted systematically from those in the southern strip by about 50 km/s. If this velocity shift is interpreted as due to a tilt of the bulge rotation axis to the galactic longitude circle, the tilt angle of the rotation of the bulge would be 18 deg ^{-18 deg_-14 deg}. The angular rotation velocity of the bulge stellar system is 7.3 x 10⁸ rad/yr (implying the rotation period of 8.6 x 10⁷ yr). A Galactic top view of the distribution and the velocity vectors of the bulge SiO masers is given.

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Detection table from Izumiura et al. (1994)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Line	V_peak	T_a	Telescope	RMS	List	Detection	Class	Dist. (parallax)	Ref.
	(J2000)	(J2000)	(deg.)	(deg.)			SiO	(km/s)	(K)		(Jy)		Yes/No		(kpc)
1	16 54 4.4	-31 25 44.1	351.5770	7.7212	G351.577+7.721	IRAS16508-3120	SiO J=1-0 v=1;	-95.59	0.9	NRO	0.130	NRO	+OH +SiO	EVOLVED		IZU94
2	16 54 4.4	-31 25 44.1	351.5770	7.7212	G351.577+7.721	IRAS16508-3120	SiO J=1-0 v=2;	-95.71	0.67	NRO	0.080	NRO	+OH +SiO	EVOLVED		IZU94
3	16 56 57.5	-31 16 40	352.0814	7.3310	G352.081+7.331	IRAS16537-3112	SiO J=1-0 v=1;	-114.92	0.08	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
4	16 56 57.5	-31 16 40	352.0814	7.3310	G352.081+7.331	IRAS16537-3112	SiO J=1-0 v=2;	-114.89	0.05	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
5	17 03 26.7	-28 34 34.5	355.1073	7.8567	G355.107+7.857	IRAS17002-2830	SiO J=1-0 v=1;	-135.5	0.14	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
6	17 03 26.7	-28 34 34.5	355.1073	7.8567	G355.107+7.857	IRAS17002-2830	SiO J=1-0 v=2;	-135.61	0.12	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
7	17 03 46.4	-29 50 35.2	354.1284	7.0394	G354.128+7.039	IRAS17005-2946	SiO J=1-0 v=1;	60.24	0.14	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
8	17 03 46.4	-29 50 35.2	354.1284	7.0394	G354.128+7.039	IRAS17005-2946	SiO J=1-0 v=2;	60.65	0.14	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
9	17 06 10.6	-28 05 22.9	355.8632	7.6643	G355.863+7.664	IRAS17030-2801	SiO J=1-0 v=1;	-49.01	0.36	NRO	0.100	NRO	+OH +SiO	EVOLVED		IZU94
10	17 06 10.6	-28 05 22.9	355.8632	7.6643	G355.863+7.664	IRAS17030-2801	SiO J=1-0 v=2;	-49.08	0.45	NRO	0.060	NRO	+OH +SiO	EVOLVED		IZU94
11	17 07 24.7	-28 37 48.7	355.5866	7.1251	G355.587+7.125	IRAS17042-2833	SiO J=1-0 v=2;	20.54	0.16	NRO	0.040	NRO	-OH +SiO	EVOLVED		IZU94
12	17 07 47.3	-28 02 8.1	356.1196	7.4095	G356.120+7.410	IRAS17046-2758	SiO J=1-0 v=1;	-93.51	0.1	NRO	0.080	NRO	+SiO	EVOLVED		IZU94
13	17 07 47.3	-28 02 8.1	356.1196	7.4095	G356.120+7.410	IRAS17046-2758	SiO J=1-0 v=2;	-93.61	0.16	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
14	17 09 24.8	-28 02 22.2	356.3292	7.1175	G356.329+7.117	IRAS17062-2758	SiO J=1-0 v=1;	-22.87	0.19	NRO	0.070	NRO	+OH +SiO	EVOLVED		IZU94
15	17 09 24.8	-28 02 22.2	356.3292	7.1175	G356.329+7.117	IRAS17062-2758	SiO J=1-0 v=2;	-22.89	0.08	NRO	0.040	NRO	+OH +SiO	EVOLVED		IZU94
16	17 10 8.1	-27 15 19	357.0642	7.4474	G357.064+7.448	IRAS17070-2711	SiO J=1-0 v=2;	22.99	0.2	NRO	0.060	NRO	-H₂O -CH₃OH I +SiO	EVOLVED		IZU94
17	17 11 59.4	-27 04 8.1	357.4593	7.2208	G357.459+7.221	IRAS17088-2700	SiO J=1-0 v=2;	8.47	0.4	NRO	0.080	NRO	-CH₃OH II +OH +SiO	EVOLVED		IZU94
18	17 13 50.9	-25 10 36.1	359.2605	7.9737	G359.261+7.974	IRAS17107-2507	SiO J=1-0 v=2;	-54.26	0.16	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
19	17 16 29.4	-25 20 5.8	359.4746	7.3933	G359.475+7.393	IRAS17134-2516	SiO J=1-0 v=1;	-164.84	0.09	NRO	0.020	NRO	+SiO	EVOLVED		IZU94
20	17 19 48.4	-23 35 0.4	1.3624	7.7620	G1.362+7.762	IRAS17167-2331	SiO J=1-0 v=1;	-110.19	0.26	NRO	0.110	NRO	-OH +SiO	EVOLVED		IZU94
21	17 19 48.4	-23 35 0.4	1.3624	7.7620	G1.362+7.762	IRAS17167-2331	SiO J=1-0 v=2;	-110.27	0.31	NRO	0.060	NRO	-OH +SiO	EVOLVED		IZU94
22	17 20 19.6	-24 38 44.3	0.5436	7.0670	G0.544+7.067	IRAS17172-2435	SiO J=1-0 v=1;	-75.71	0.27	NRO	0.150	NRO	+SiO	EVOLVED		IZU94
23	17 20 19.6	-24 38 44.3	0.5436	7.0670	G0.544+7.067	IRAS17172-2435	SiO J=1-0 v=2;	-75.68	0.18	NRO	0.080	NRO	+SiO	EVOLVED		IZU94
24	17 23 13.9	-22 47 39.6	2.4663	7.5494	G2.466+7.549	IRAS17202-2244	SiO J=1-0 v=1;	-38.17	0.23	NRO	0.090	NRO	+SiO	EVOLVED		IZU94
25	17 23 13.9	-22 47 39.6	2.4663	7.5494	G2.466+7.549	IRAS17202-2244	SiO J=1-0 v=2;	-38.16	0.09	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
26	17 25 58.3	-21 01 50.7	4.3050	7.9907	G4.305+7.991	IRAS17229-2059	SiO J=1-0 v=1;	15.11	0.3	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
27	17 25 58.3	-21 01 50.7	4.3050	7.9907	G4.305+7.991	IRAS17229-2059	SiO J=1-0 v=2;	15.71	0.35	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
28	17 27 09	-22 05 24.7	3.5616	7.1819	G3.562+7.182	IRAS17241-2202	SiO J=1-0 v=1;	-59.44	0.24	NRO	0.080	NRO	-OH +SiO	EVOLVED		IZU94
29	17 27 09	-22 05 24.7	3.5616	7.1819	G3.562+7.182	IRAS17241-2202	SiO J=1-0 v=2;	-59.44	0.12	NRO	0.060	NRO	-OH +SiO	EVOLVED		IZU94
30	17 27 26.6	-21 33 37.4	4.0464	7.4144	G4.046+7.414	IRAS17244-2131	SiO J=1-0 v=1;	-118.81	0.12	NRO	0.040	NRO	-OH +SiO	EVOLVED		IZU94
31	17 27 26.6	-21 33 37.4	4.0464	7.4144	G4.046+7.414	IRAS17244-2131	SiO J=1-0 v=2;	-118.81	0.09	NRO	0.040	NRO	-OH +SiO	EVOLVED		IZU94
32	17 29 25.6	-20 39 34.8	5.0626	7.5156	G5.063+7.516	IRAS17264-2037	SiO J=1-0 v=1;	2.57	0.66	NRO	0.140	NRO	-OH +SiO	EVOLVED		IZU94
33	17 29 25.6	-20 39 34.8	5.0626	7.5156	G5.063+7.516	IRAS17264-2037	SiO J=1-0 v=2;	2.59	0.63	NRO	0.120	NRO	-OH +SiO	EVOLVED		IZU94
34	17 29 46.1	-21 25 6.3	4.4631	7.0376	G4.463+7.038	IRAS17267-2122	SiO J=1-0 v=1;	-23.98	0.21	NRO	0.090	NRO	+OH +SiO	EVOLVED		IZU94
35	17 29 46.1	-21 25 6.3	4.4631	7.0376	G4.463+7.038	IRAS17267-2122	SiO J=1-0 v=2;	-24.01	0.26	NRO	0.060	NRO	+OH +SiO	EVOLVED		IZU94
36	17 31 41.1	-19 58 7.9	5.9373	7.4419	G5.937+7.442	IRAS17287-1955	SiO J=1-0 v=1;	19.26	0.21	NRO	0.050	NRO	-CH₃OH II -OH +SiO	EVOLVED		IZU94
37	17 31 41.1	-19 58 7.9	5.9373	7.4419	G5.937+7.442	IRAS17287-1955	SiO J=1-0 v=2;	19.07	0.17	NRO	0.050	NRO	-CH₃OH II -OH +SiO	EVOLVED		IZU94
38	17 31 45.2	-20 36 16.7	5.4053	7.0871	G5.405+7.087	IRAS17287-2034	SiO J=1-0 v=1;	3.68	0.17	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
39	17 31 45.2	-20 36 16.7	5.4053	7.0871	G5.405+7.087	IRAS17287-2034	SiO J=1-0 v=2;	3.71	0.1	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
40	17 32 14.8	-19 33 9.5	6.3631	7.5536	G6.363+7.554	IRAS17292-1931	SiO J=1-0 v=1;	76.09	0.14	NRO	0.040	NRO	-OH +SiO	EVOLVED		IZU94
41	17 32 14.8	-19 33 9.5	6.3631	7.5536	G6.363+7.554	IRAS17292-1931	SiO J=1-0 v=2;	76.4	0.15	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
42	17 33 22.5	-19 35 52.6	6.4677	7.3048	G6.468+7.305	IRAS17304-1933	SiO J=1-0 v=1;	99.16	0.05	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
43	17 33 22.5	-19 35 52.6	6.4677	7.3048	G6.468+7.305	IRAS17304-1933	SiO J=1-0 v=2;	99.12	0.11	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
44	17 35 16.5	-18 35 36.3	7.5663	7.4583	G7.566+7.458	IRAS17323-1833	SiO J=1-0 v=1;	-16.89	0.17	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
45	17 35 16.5	-18 35 36.3	7.5663	7.4583	G7.566+7.458	IRAS17323-1833	SiO J=1-0 v=2;	-16.87	0.06	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
46	17 35 23.8	-19 20 46.8	6.9379	7.0351	G6.938+7.035	IRAS17324-1918	SiO J=1-0 v=1;	-84.05	0.57	NRO	0.140	NRO	-OH +SiO	EVOLVED		IZU94
47	17 35 23.8	-19 20 46.8	6.9379	7.0351	G6.938+7.035	IRAS17324-1918	SiO J=1-0 v=2;	-84.08	0.46	NRO	0.100	NRO	-OH +SiO	EVOLVED		IZU94
48	17 38 41.3	-17 06 16.4	9.2745	7.5498	G9.275+7.550	IRAS17357-1704	SiO J=1-0 v=1;	-73.9	0.08	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
49	17 38 41.3	-17 06 16.4	9.2745	7.5498	G9.275+7.550	IRAS17357-1704	SiO J=1-0 v=2;	-73.86	0.09	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
50	17 39 25.8	-16 42 38.1	9.7070	7.6037	G9.707+7.604	IRAS17365-1641	SiO J=1-0 v=1;	-57.36	0.19	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
51	17 39 25.8	-16 42 38.1	9.7070	7.6037	G9.707+7.604	IRAS17365-1641	SiO J=1-0 v=2;	-57.34	0.09	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
52	17 39 38.3	-16 58 14.2	9.5090	7.4260	G9.509+7.426	IRAS17367-1656	SiO J=1-0 v=1;	-22.46	0.71	NRO	0.090	NRO	+SiO	EVOLVED		IZU94
53	17 39 38.3	-16 58 14.2	9.5090	7.4260	G9.509+7.426	IRAS17367-1656	SiO J=1-0 v=2;	-22.47	0.35	NRO	0.070	NRO	+SiO	EVOLVED		IZU94
54	17 41 8.4	-17 06 1.7	9.5854	7.0516	G9.585+7.052	IRAS17382-1704	SiO J=1-0 v=1;	-42.9	0.19	NRO	0.060	NRO	+OH +SiO	EVOLVED		IZU94
55	17 41 8.4	-17 06 1.7	9.5854	7.0516	G9.585+7.052	IRAS17382-1704	SiO J=1-0 v=2;	-42.92	0.37	NRO	0.070	NRO	+OH +SiO	EVOLVED		IZU94
56	17 46 52.3	-14 05 26.6	12.9033	7.4100	G12.903+7.410	IRAS17440-1404	SiO J=1-0 v=1;	213.66	0.26	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
57	17 46 52.3	-14 05 26.6	12.9033	7.4100	G12.903+7.410	IRAS17440-1404	SiO J=1-0 v=2;	214.49	0.26	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
58	17 48 35.1	-13 02 30	14.0287	7.5802	G14.029+7.580	IRAS17457-1301	SiO J=1-0 v=1;	-3.13	0.31	NRO	0.140	NRO	+SiO	EVOLVED		IZU94
59	17 48 35.1	-13 02 30	14.0287	7.5802	G14.029+7.580	IRAS17457-1301	SiO J=1-0 v=2;	-3.15	0.23	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
60	17 48 34.3	-13 48 6.1	13.3648	7.2004	G13.365+7.200	IRAS17457-1347	SiO J=1-0 v=1;	-50.82	0.15	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
61	17 48 34.3	-13 48 6.1	13.3648	7.2004	G13.365+7.200	IRAS17457-1347	SiO J=1-0 v=2;	-50.76	0.16	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
62	17 59 3.2	-38 47 40.7	352.8810	-7.3838	G352.881-7.384	IRAS17555-3847	SiO J=1-0 v=1;	-51.1	0.11	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
63	17 59 3.2	-38 47 40.7	352.8810	-7.3838	G352.881-7.384	IRAS17555-3847	SiO J=1-0 v=2;	-51.04	0.07	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
64	18 03 25	-37 46 20.6	354.2006	-7.6414	G354.201-7.641	IRAS17599-3746	SiO J=1-0 v=1;	5.94	0.06	NRO	0.030	NRO	+SiO	GALAXY		IZU94
65	18 03 25	-37 46 20.6	354.2006	-7.6414	G354.201-7.641	IRAS17599-3746	SiO J=1-0 v=2;	2.24	0.1	NRO	0.030	NRO	+SiO	GALAXY		IZU94
66	18 05 46.5	-35 43 7.1	356.2477	-7.0763	G356.248-7.076	IRAS18024-3543	SiO J=1-0 v=1;	-99.9	0.13	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
67	18 05 46.5	-35 43 7.1	356.2477	-7.0763	G356.248-7.076	IRAS18024-3543	SiO J=1-0 v=2;	-99.91	0.1	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
68	18 09 22	-34 50 53.3	357.3703	-7.3093	G357.370-7.309	IRAS18060-3451	SiO J=1-0 v=1;	2.99	0.51	NRO	0.100	NRO	+OH +SiO	EVOLVED		IZU94
69	18 09 22	-34 50 53.3	357.3703	-7.3093	G357.370-7.309	IRAS18060-3451	SiO J=1-0 v=2;	3.01	0.28	NRO	0.070	NRO	+OH +SiO	EVOLVED		IZU94
70	18 14 50.3	-32 36 12.3	359.9069	-7.2656	G359.907-7.266	IRAS18115-3237	SiO J=1-0 v=1;	21.63	0.21	NRO	0.060	NRO	-OH +SiO	EVOLVED		IZU94
71	18 14 50.3	-32 36 12.3	359.9069	-7.2656	G359.907-7.266	IRAS18115-3237	SiO J=1-0 v=2;	22.03	0.27	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
72	18 19 35.9	-31 04 42.4	1.7413	-7.4596	G1.741-7.460	IRAS18163-3106	SiO J=1-0 v=1;	-6.05	0.21	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
73	18 19 35.9	-31 04 42.4	1.7413	-7.4596	G1.741-7.460	IRAS18163-3106	SiO J=1-0 v=2;	-6.09	0.12	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
74	18 24 56.3	-29 04 48.1	4.0665	-7.5787	G4.066-7.579	IRAS18217-2906	SiO J=1-0 v=1;	98.36	0.36	NRO	0.070	NRO	+SiO	EVOLVED		IZU94
75	18 24 56.3	-29 04 48.1	4.0665	-7.5787	G4.066-7.579	IRAS18217-2906	SiO J=1-0 v=2;	98.24	0.28	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
76	18 25 11.2	-29 18 46	3.8818	-7.7324	G3.882-7.732	IRAS18220-2920	SiO J=1-0 v=1;	151.34	0.13	NRO	0.060	NRO	+SiO	EVOLVED		IZU94
77	18 25 11.2	-29 18 46	3.8818	-7.7324	G3.882-7.732	IRAS18220-2920	SiO J=1-0 v=2;	150.73	0.24	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
78	18 25 33.3	-27 54 39.3	5.1794	-7.1701	G5.179-7.170	IRAS18224-2756	SiO J=1-0 v=1;	-13.83	0.2	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
79	18 25 33.3	-27 54 39.3	5.1794	-7.1701	G5.179-7.170	IRAS18224-2756	SiO J=1-0 v=2;	-13.79	0.14	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
80	18 27 13.4	-28 30 29.1	4.8094	-7.7675	G4.809-7.768	IRAS18240-2832	SiO J=1-0 v=1;	143.06	0.1	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
81	18 27 13.4	-28 30 29.1	4.8094	-7.7675	G4.809-7.768	IRAS18240-2832	SiO J=1-0 v=2;	142.6	0.09	NRO	0.020	NRO	+SiO	EVOLVED		IZU94
82	18 29 10.3	-26 17 5.5	7.0079	-7.1530	G7.008-7.153	IRAS18260-2619	SiO J=1-0 v=1;	19.26	0.12	NRO	0.070	NRO	-OH +SiO	EVOLVED		IZU94
83	18 29 10.3	-26 17 5.5	7.0079	-7.1530	G7.008-7.153	IRAS18260-2619	SiO J=1-0 v=2;	20.26	0.19	NRO	0.070	NRO	-OH +SiO	EVOLVED		IZU94
84	18 29 35.6	-27 18 1.7	6.1357	-7.6936	G6.136-7.694	IRAS18264-2720	SiO J=1-0 v=1;	83.75	0.11	NRO	0.040	NRO	-OH +SiO	EVOLVED		IZU94
85	18 29 35.6	-27 18 1.7	6.1357	-7.6936	G6.136-7.694	IRAS18264-2720	SiO J=1-0 v=2;	83.08	0.12	NRO	0.050	NRO	-OH +SiO	EVOLVED		IZU94
86	18 29 48.4	-26 01 6.7	7.3123	-7.1603	G7.312-7.160	IRAS18267-2603	SiO J=1-0 v=1;	94.01	0.14	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
87	18 29 48.4	-26 01 6.7	7.3123	-7.1603	G7.312-7.160	IRAS18267-2603	SiO J=1-0 v=2;	94.88	0.13	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
88	18 30 36.5	-26 55 14.3	6.5804	-7.7253	G6.580-7.725	IRAS18274-2657	SiO J=1-0 v=1;	69.34	0.54	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
89	18 30 36.5	-26 55 14.3	6.5804	-7.7253	G6.580-7.725	IRAS18274-2657	SiO J=1-0 v=2;	69.4	0.41	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
90	18 31 4.2	-27 05 40.3	6.4698	-7.8952	G6.470-7.895	IRAS18279-2707	SiO J=1-0 v=1;	-42.06	0.16	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
91	18 31 4.2	-27 05 40.3	6.4698	-7.8952	G6.470-7.895	IRAS18279-2707	SiO J=1-0 v=2;	-42.08	0.06	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
92	18 31 18.6	-25 34 6.2	7.8709	-7.2605	G7.871-7.260	IRAS18282-2536	SiO J=1-0 v=1;	115.81	0.26	NRO	0.080	NRO	-OH +SiO	EVOLVED		IZU94
93	18 31 18.6	-25 34 6.2	7.8709	-7.2605	G7.871-7.260	IRAS18282-2536	SiO J=1-0 v=2;	116.82	0.17	NRO	0.060	NRO	-OH +SiO	EVOLVED		IZU94
94	18 31 49	-26 08 56	7.3989	-7.6223	G7.399-7.622	IRAS18287-2611	SiO J=1-0 v=1;	24.42	0.2	NRO	0.080	NRO	-OH +SiO	EVOLVED		IZU94
95	18 31 49	-26 08 56	7.3989	-7.6223	G7.399-7.622	IRAS18287-2611	SiO J=1-0 v=2;	24.04	0.26	NRO	0.060	NRO	-OH +SiO	EVOLVED		IZU94
96	18 32 08	-24 57 22.6	8.5066	-7.1523	G8.506-7.152	IRAS18290-2459	SiO J=1-0 v=1;	61.41	2.42	NRO	0.210	NRO	+OH +SiO	EVOLVED		IZU94
97	18 32 08	-24 57 22.6	8.5066	-7.1523	G8.506-7.152	IRAS18290-2459	SiO J=1-0 v=2;	61.56	2.22	NRO	0.170	NRO	+OH +SiO	EVOLVED		IZU94
98	18 32 12.7	-26 39 58.3	6.9714	-7.9320	G6.971-7.932	IRAS18290-2642	SiO J=1-0 v=1;	74.73	0.27	NRO	0.080	NRO	+SiO	EVOLVED		IZU94
99	18 32 12.7	-26 39 58.3	6.9714	-7.9320	G6.971-7.932	IRAS18290-2642	SiO J=1-0 v=2;	75.04	0.23	NRO	0.050	NRO	+SiO	EVOLVED		IZU94
100	18 33 53.4	-26 02 01	7.7124	-7.9878	G7.712-7.988	IRAS18307-2604	SiO J=1-0 v=1;	-64.86	0.08	NRO	0.030	NRO	+SiO	EVOLVED		IZU94
101	18 33 53.4	-26 02 01	7.7124	-7.9878	G7.712-7.988	IRAS18307-2604	SiO J=1-0 v=2;	-64.9	0.1	NRO	0.040	NRO	+SiO	EVOLVED		IZU94
102	18 37 12.8	-23 55 17.5	9.9604	-7.7259	G9.960-7.726	IRAS18341-2357	SiO J=1-0 v=1;	-60.14	0.2	NRO	0.110	NRO	-OH +SiO	EVOLVED		IZU94
103	18 37 12.8	-23 55 17.5	9.9604	-7.7259	G9.960-7.726	IRAS18341-2357	SiO J=1-0 v=2;	-60.14	0.13	NRO	0.070	NRO	-OH +SiO	EVOLVED		IZU94
104	18 37 48	-23 48 42	10.1198	-7.7976	G10.120-7.798	IRAS18347-2351	SiO J=1-0 v=1;	-49.85	0.44	NRO	0.070	NRO	+SiO	EVOLVED		IZU94
105	18 37 48	-23 48 42	10.1198	-7.7976	G10.120-7.798	IRAS18347-2351	SiO J=1-0 v=2;	-49.92	0.53	NRO	0.070	NRO	+SiO	EVOLVED		IZU94

Non-detection table from Izumiura et al. (1994)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Line	Date	Telescope	RMS	List	Detection	Class	Ref.
	(J2000)	(J2000)	(deg.)	(deg.)			SiO			(Jy)		Yes/No
1	16 37 36	-36 01 39.5	345.8036	7.3911	G345.804+7.391	IRAS16342-3555	SiO J=1-0 v=1;	1991-03-15	NRO	0.120	NRO	-SiO	EVOLVED	IZU94
2	16 37 36	-36 01 39.5	345.8036	7.3911	G345.804+7.391	IRAS16342-3555	SiO J=1-0 v=2;	1991-03-15	NRO	0.060	NRO	-SiO	EVOLVED	IZU94
3	16 47 11.4	-33 17 56.9	349.1875	7.6701	G349.188+7.670	IRAS16439-3312	SiO J=1-0 v=1;	1992-01-28	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
4	16 47 11.4	-33 17 56.9	349.1875	7.6701	G349.188+7.670	IRAS16439-3312	SiO J=1-0 v=2;	1992-01-28	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
5	17 07 24.7	-28 37 48.7	355.5866	7.1251	G355.587+7.125	IRAS17042-2833	SiO J=1-0 v=1;	1991-03-14	NRO	0.070	NRO	-OH +SiO	EVOLVED	IZU94
6	17 07 53	-27 11 23.6	356.8214	7.8911	G356.821+7.891	IRAS17047-2707	SiO J=1-0 v=1;	1993-05-15	NRO	0.010	NRO	-SiO	EVOLVED	IZU94
7	17 07 53	-27 11 23.6	356.8214	7.8911	G356.821+7.891	IRAS17047-2707	SiO J=1-0 v=2;	1993-05-15	NRO	0.010	NRO	-SiO	EVOLVED	IZU94
8	17 09 35.3	-26 40 18.3	357.4701	7.8873	G357.470+7.888	IRAS17064-2636	SiO J=1-0 v=1;	1992-05-12	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
9	17 09 35.3	-26 40 18.3	357.4701	7.8873	G357.470+7.888	IRAS17064-2636	SiO J=1-0 v=2;	1992-05-12	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
10	17 10 8.1	-27 15 19	357.0642	7.4474	G357.064+7.448	IRAS17070-2711	SiO J=1-0 v=1;	1991-03-16	NRO	0.090	NRO	-H₂O -CH₃OH I +SiO	EVOLVED	IZU94
11	17 11 59.4	-27 04 8.1	357.4593	7.2208	G357.459+7.221	IRAS17088-2700	SiO J=1-0 v=1;	1990-01-23	NRO	0.100	NRO	-CH₃OH II +OH +SiO	EVOLVED	IZU94
12	17 13 50.9	-25 10 36.1	359.2605	7.9737	G359.261+7.974	IRAS17107-2507	SiO J=1-0 v=1;	1992-01-31	NRO	0.050	NRO	-OH +SiO	EVOLVED	IZU94
13	17 16 29.4	-25 20 5.8	359.4746	7.3933	G359.475+7.393	IRAS17134-2516	SiO J=1-0 v=2;	1993-05-17	NRO	0.030	NRO	+SiO	EVOLVED	IZU94
14	17 18 46	-23 58 56.9	0.8942	7.7344	G0.894+7.734	IRAS17157-2355	SiO J=1-0 v=1;	1993-05-18	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
15	17 18 46	-23 58 56.9	0.8942	7.7344	G0.894+7.734	IRAS17157-2355	SiO J=1-0 v=2;	1993-05-18	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
16	17 20 25.2	-23 37 42.8	1.4042	7.6205	G1.404+7.621	IRAS17173-2334	SiO J=1-0 v=1;	1993-05-14	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
17	17 20 25.2	-23 37 42.8	1.4042	7.6205	G1.404+7.621	IRAS17173-2334	SiO J=1-0 v=2;	1993-05-14	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
18	17 24 20.5	-22 21 50.8	2.9707	7.5742	G2.971+7.574	IRAS17213-2219	SiO J=1-0 v=1;	1991-03-15	NRO	0.110	NRO	-OH -SiO	EVOLVED	IZU94
19	17 24 20.5	-22 21 50.8	2.9707	7.5742	G2.971+7.574	IRAS17213-2219	SiO J=1-0 v=2;	1991-03-15	NRO	0.060	NRO	-OH -SiO	EVOLVED	IZU94
20	17 24 36.1	-22 30 50.7	2.8780	7.4413	G2.878+7.441	IRAS17215-2228	SiO J=1-0 v=1;	1992-05-13	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
21	17 24 36.1	-22 30 50.7	2.8780	7.4413	G2.878+7.441	IRAS17215-2228	SiO J=1-0 v=2;	1992-05-13	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
22	17 26 2.4	-21 37 35.5	3.8107	7.6511	G3.811+7.651	IRAS17230-2135	SiO J=1-0 v=1;	1993-05-16	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
23	17 26 2.4	-21 37 35.5	3.8107	7.6511	G3.811+7.651	IRAS17230-2135	SiO J=1-0 v=2;	1993-05-16	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
24	17 26 42.4	-21 41 9.6	3.8461	7.4890	G3.846+7.489	IRAS17237-2138	SiO J=1-0 v=1;	1992-05-13	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
25	17 26 42.4	-21 41 9.6	3.8461	7.4890	G3.846+7.489	IRAS17237-2138	SiO J=1-0 v=2;	1992-05-13	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
26	17 27 55.4	-21 42 37.3	3.9810	7.2391	G3.981+7.239	IRAS17249-2140	SiO J=1-0 v=1;	1992-01-31	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
27	17 27 55.4	-21 42 37.3	3.9810	7.2391	G3.981+7.239	IRAS17249-2140	SiO J=1-0 v=2;	1992-01-31	NRO		NRO	-SiO	EVOLVED	IZU94
28	17 29 3.7	-21 04 16.4	4.6672	7.3641	G4.667+7.364	IRAS17260-2101	SiO J=1-0 v=1;	1992-06-28	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
29	17 29 3.7	-21 04 16.4	4.6672	7.3641	G4.667+7.364	IRAS17260-2101	SiO J=1-0 v=2;	1992-06-28	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
30	17 30 32.8	-19 35 26.9	6.1138	7.8709	G6.114+7.871	IRAS17275-1933	SiO J=1-0 v=1;	1993-05-19	NRO	0.010	NRO	-SiO	EVOLVED	IZU94
31	17 30 32.8	-19 35 26.9	6.1138	7.8709	G6.114+7.871	IRAS17275-1933	SiO J=1-0 v=2;	1993-05-19	NRO	0.010	NRO	-SiO	EVOLVED	IZU94
32	17 30 50.6	-20 50 46.6	5.0846	7.1362	G5.085+7.136	IRAS17278-2048	SiO J=1-0 v=1;	1993-04-10	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
33	17 30 50.6	-20 50 46.6	5.0846	7.1362	G5.085+7.136	IRAS17278-2048	SiO J=1-0 v=2;	1993-04-10	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
34	17 33 24.1	-19 49 53.5	6.2719	7.1748	G6.272+7.175	IRAS17304-1947	SiO J=1-0 v=1;	1991-03-13	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
35	17 33 24.1	-19 49 53.5	6.2719	7.1748	G6.272+7.175	IRAS17304-1947	SiO J=1-0 v=2;	1991-03-13	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
36	17 47 14.8	-14 32 28	12.5583	7.1035	G12.558+7.104	IRAS17443-1431	SiO J=1-0 v=1;	1992-11-24	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
37	17 47 14.8	-14 32 28	12.5583	7.1035	G12.558+7.104	IRAS17443-1431	SiO J=1-0 v=2;	1992-11-24	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
38	17 47 20	-13 09 13.5	13.7759	7.7872	G13.776+7.787	IRAS17445-1308	SiO J=1-0 v=1;	1992-01-27	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
39	17 47 20	-13 09 13.5	13.7759	7.7872	G13.776+7.787	IRAS17445-1308	SiO J=1-0 v=2;	1992-01-27	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
40	17 50 42.2	-12 27 48.8	14.7945	7.4231	G14.794+7.423	IRAS17478-1227	SiO J=1-0 v=1;	1992-05-10	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
41	17 50 42.2	-12 27 48.8	14.7945	7.4231	G14.794+7.423	IRAS17478-1227	SiO J=1-0 v=2;	1992-05-10	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
42	17 54 24.1	-39 57 9.1	351.4195	-7.1675	G351.419-7.168	IRAS17509-3956	SiO J=1-0 v=1;	1993-05-17	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
43	17 54 24.1	-39 57 9.1	351.4195	-7.1675	G351.419-7.168	IRAS17509-3956	SiO J=1-0 v=2;	1993-05-17	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
44	17 58 45.7	-39 09 19	352.5353	-7.5095	G352.535-7.509	IRAS17552-3909	SiO J=1-0 v=1;	1993-05-16	NRO	0.070	NRO	-SiO	EVOLVED	IZU94
45	17 58 45.7	-39 09 19	352.5353	-7.5095	G352.535-7.509	IRAS17552-3909	SiO J=1-0 v=2;	1993-05-16	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
46	18 00 4.6	-38 01 41.2	353.6548	-7.1872	G353.655-7.187	IRAS17566-3801	SiO J=1-0 v=1;	1993-04-29	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
47	18 00 4.6	-38 01 41.2	353.6548	-7.1872	G353.655-7.187	IRAS17566-3801	SiO J=1-0 v=2;	1993-04-29	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
48	18 00 26.4	-37 48 33.6	353.8827	-7.1439	G353.883-7.144	IRAS17570-3748	SiO J=1-0 v=1;	1993-05-15	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
49	18 00 26.4	-37 48 33.6	353.8827	-7.1439	G353.883-7.144	IRAS17570-3748	SiO J=1-0 v=2;	1993-05-15	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
50	18 05 16.1	-36 05 6.4	355.8737	-7.1607	G355.874-7.161	IRAS18018-3605	SiO J=1-0 v=1;	1991-04-22	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
51	18 05 16.1	-36 05 6.4	355.8737	-7.1607	G355.874-7.161	IRAS18018-3605	SiO J=1-0 v=2;	1991-04-22	NRO	0.060	NRO	-SiO	EVOLVED	IZU94
52	18 13 53.8	-32 25 14.4	359.9769	-7.0049	G359.977-7.005	IRAS18106-3226	SiO J=1-0 v=1;	1991-04-23	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
53	18 13 53.8	-32 25 14.4	359.9769	-7.0049	G359.977-7.005	IRAS18106-3226	SiO J=1-0 v=2;	1991-04-23	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
54	18 16 11.9	-33 04 8.4	359.6239	-7.7344	G359.624-7.734	IRAS18129-3305	SiO J=1-0 v=1;	1992-01-30	NRO	0.030	NRO	-SiO		IZU94
55	18 16 11.9	-33 04 8.4	359.6239	-7.7344	G359.624-7.734	IRAS18129-3305	SiO J=1-0 v=2;	1992-01-30	NRO	0.040	NRO	-SiO		IZU94
56	18 16 57.9	-33 02 34	359.7219	-7.8648	G359.722-7.865	IRAS18136-3303	SiO J=1-0 v=1;	1993-05-15	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
57	18 16 57.9	-33 02 34	359.7219	-7.8648	G359.722-7.865	IRAS18136-3303	SiO J=1-0 v=2;	1993-05-15	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
58	18 17 53.6	-31 08 50.9	1.5105	-7.1672	G1.510-7.167	IRAS18146-3110	SiO J=1-0 v=1;	1993-04-09	NRO	0.020	NRO	-SiO	EVOLVED	IZU94
59	18 17 53.6	-31 08 50.9	1.5105	-7.1672	G1.510-7.167	IRAS18146-3110	SiO J=1-0 v=2;	1993-04-09	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
60	18 20 10.5	-30 04 51.9	2.6923	-7.1128	G2.692-7.113	IRAS18169-3006	SiO J=1-0 v=1;	1991-04-27	NRO	0.050	NRO	-SiO	EVOLVED	IZU94
61	18 20 10.5	-30 04 51.9	2.6923	-7.1128	G2.692-7.113	IRAS18169-3006	SiO J=1-0 v=2;	1991-04-27	NRO	0.060	NRO	-SiO	EVOLVED	IZU94
62	18 20 32.6	-31 06 2.3	1.8147	-7.6497	G1.815-7.650	IRAS18173-3107	SiO J=1-0 v=1;	1991-03-17	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
63	18 20 32.6	-31 06 2.3	1.8147	-7.6497	G1.815-7.650	IRAS18173-3107	SiO J=1-0 v=2;	1991-03-17	NRO	0.040	NRO	-SiO	EVOLVED	IZU94
64	18 23 37	-30 25 52.9	2.7192	-7.9339	G2.719-7.934	IRAS18204-3027	SiO J=1-0 v=1;	1991-04-02	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
65	18 23 37	-30 25 52.9	2.7192	-7.9339	G2.719-7.934	IRAS18204-3027	SiO J=1-0 v=2;	1991-04-02	NRO	0.030	NRO	-OH -SiO	EVOLVED	IZU94
66	18 29 52.8	-27 12 59.5	6.2402	-7.7129	G6.240-7.713	IRAS18267-2715	SiO J=1-0 v=1;	1991-04-29	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
67	18 29 52.8	-27 12 59.5	6.2402	-7.7129	G6.240-7.713	IRAS18267-2715	SiO J=1-0 v=2;	1991-04-29	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
68	18 30 28.1	-26 30 17.9	6.9412	-7.5113	G6.941-7.511	IRAS18273-2632	SiO J=1-0 v=1;	1991-04-18	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
69	18 30 28.1	-26 30 17.9	6.9412	-7.5113	G6.941-7.511	IRAS18273-2632	SiO J=1-0 v=2;	1991-04-18	NRO	0.040	NRO	-OH -SiO	EVOLVED	IZU94
70	18 35 3.8	-24 40 12.9	9.0640	-7.6193	G9.064-7.619	IRAS18319-2442	SiO J=1-0 v=1;	1993-05-19	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
71	18 35 3.8	-24 40 12.9	9.0640	-7.6193	G9.064-7.619	IRAS18319-2442	SiO J=1-0 v=2;	1993-05-19	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
72	18 38 13.5	-23 22 21.1	10.5607	-7.6904	G10.561-7.690	IRAS18351-2325	SiO J=1-0 v=1;	1992-01-31	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
73	18 38 13.5	-23 22 21.1	10.5607	-7.6904	G10.561-7.690	IRAS18351-2325	SiO J=1-0 v=2;	1992-01-31	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
74	18 38 10.4	-23 43 15.4	10.2401	-7.8339	G10.240-7.834	IRAS18351-2345	SiO J=1-0 v=1;	1991-03-13	NRO	0.080	NRO	+OH -SiO	EVOLVED	IZU94
75	18 38 10.4	-23 43 15.4	10.2401	-7.8339	G10.240-7.834	IRAS18351-2345	SiO J=1-0 v=2;	1991-03-13	NRO	0.050	NRO	+OH -SiO	EVOLVED	IZU94
76	18 44 22.4	-19 56 29.5	14.3023	-7.4543	G14.302-7.454	IRAS18414-1959	SiO J=1-0 v=1;	1992-01-30	NRO	0.030	NRO	-SiO	EVOLVED	IZU94
77	18 44 22.4	-19 56 29.5	14.3023	-7.4543	G14.302-7.454	IRAS18414-1959	SiO J=1-0 v=2;	1992-01-30	NRO	0.040	NRO	-SiO	EVOLVED	IZU94

Distribution of sources in all sky (l,b)

Distribution of sources in all sky using Aladin

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Distribution of sources in IRAS color-color diagram

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Original color diagram is taken form van der Veen & Habing (1987)

Type	Description
I	Oxygen-rich non-variable stars without circumstellar shells
II	Variable stars with "young" O-rich circumstellar shells
IIIa	Variable stars with more evolved O-rich circumstellar shells
IIIb	Variable stars with thick O-rich circumstellar shells
IV	Variable stars with very thick O-rich circumstellar shells
V	Planetary nebulae and non- variable stars with very cool circumstellar shells
VIa	Variable stars with relatively cold dust at large distances; a significant part of the stars is carbon-rich
VIb	Variable stars with relatively hot dust close to the star and relatively cold dust at large distances; Some of the objects have proven to be O-rich
VII	Variable stars with more evolved C-rich circumstellar shells
VIII	Different sort of objects

Distribution of the detection velocities versus galactic longitude from IZU94

Tip: Use "Box select" or "Lasso select" to display velocity-selected sources in Aladin all-sky view