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SCA91 - A new water maser source in LBN 594.

Short title: Scappini et al. (1991)
Authors: Scappini, F.Caselli, P.Palumbo, G. G. C.
Journal: Monthly Notices of the Royal Astronomical Society, Vol. 249, 763-765 (1991)
Bibcode:

Non-detection table: Show non-detection table
Detection table: Show detection table (3 detection) Non-detection table: Show non-detection table (91 non-detection)
Target type: Bok

Abstract
The detection of a new water maser source on the 6(16)-5(23) transition in the Bok globule LBN594 is presented. Besides the main feature, a number of velocity components were detected. Spectra taken within a few days interval suggest possible maser variability. Maser emission was also confirmed for two Ae/Be Herbig stars. Upper limits (3sigma) are given for the 79 observed globules and 12 Herbig stars.

Abstract

The detection of a new water maser source on the 6(16)-5(23) transition in the Bok globule LBN594 is presented. Besides the main feature, a number of velocity components were detected. Spectra taken within a few days interval suggest possible maser variability. Maser emission was also confirmed for two Ae/Be Herbig stars. Upper limits (3sigma) are given for the 79 observed globules and 12 Herbig stars.

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Detection table from Scappini et al. (1991)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Image	Line	V_peak	F_peak	Telescope	V_step	Beam	Detection	Class	Dist. (parallax)	Date
	(J2000)	(J2000)	(deg.)	(deg.)				H₂O	(km/s)	(Jy)		(km/s)	(arcsec)	Yes/No		(kpc)
1	00 28 45.8	+56 41 7.8	119.8047	-6.0485	G119.799-6.032	LBN594	Image	22 GHz;	-38.3	77.6	MED	0.165	120	+H₂O +CH₃OH I -CH₃OH II	SFR		900217
2	21 39 58.2	+50 14 21.5	94.6026	-1.7960	G94.603-1.796	V645Cyg t		22 GHz;	-44.6	9.6	MED	0.165	120	+H₂O -CH₃OH I +CH₃OH II -OH -SiO	SFR_MIXED		900204
3	21 43 6.2	+66 06 56.1	105.4151	9.8787	G105.405+9.877	LkHa234		22 GHz;	-7.8	267.6	MED	0.165	120	+H₂O -CH₃OH I -CH₃OH II	SFR_MIXED		900210

Non-detection table from Scappini et al. (1991)

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ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Line	F_peak	Telescope	V_step	RMS	Beam	Detection	Class	Date
	(J2000)	(J2000)	(deg.)	(deg.)			H₂O	(Jy)		(km/s)	(Jy)	(arcsec)	Yes/No
1	00 49 28.7	+50 44 41.1	122.6148	-12.1258	G122.605-12.125	LBN613	22 GHz;	<5.2	MED	0.165	1.730	120	-H₂O -CH₃OH I -CH₃OH II	SFR_MIXED	900204
2	03 56 36.5	+56 08 2.2	146.7032	2.0594	G146.703+2.059	B6	22 GHz;	<5.7	MED	0.165	1.900	120	-H₂O	SFR	900203
3	04 03 18.3	+56 50 8.1	146.9455	3.1943	G146.937+3.194	L1388	22 GHz;	<6.0	MED	0.165	2.000	120	-H₂O	SFR	900203
4	04 04 38	+56 56 11.1	147.0142	3.3901	G147.011+3.387	LI 389	22 GHz;	<7.6	MED	0.165	2.530	120	-H₂O -CH₃OH I	SFR	900211
5	05 00 9.3	+52 05 00	156.0575	5.9973	G156.057+5.997	L1439	22 GHz;	<7.5	MED	0.165	2.500	120	-H₂O	SFR	900211
6	05 06 20.2	-03 56 2.1	204.0171	-25.1087	G204.019-25.111	LBN923	22 GHz;	<8.0	MED	0.165	2.670	120	-H₂O	SFR	900211
7	05 33 21	-00 37 58.2	204.3317	-17.6033	G204.332-17.603	LBN913	22 GHz;	<5.5	MED	0.165	1.830	120	-H₂O	SFR	900218
8	05 36 28.4	-00 16 36.7	204.3919	-16.7471	G204.392-16.747	LBN921	22 GHz;	<5.4	MED	0.165	1.800	120	-H₂O	SFR	900218
9	05 47 1.3	+21 01 10.2	186.9383	-3.8350	G186.953-3.830	CB34	22 GHz;	<6.2	MED	0.165	2.070	120	+H₂O -CH₃OH I -CH₃OH II	SFR_MIXED	900203
10	06 07 31.3	+19 27 52.6	190.6939	-0.4505	G190.692-0.454	L1570	22 GHz;	<7.6	MED	0.165	2.530	120	-H₂O	SFR	900203
11	07 04 16.8	-16 24 32.7	229.0027	-4.6458	G229.003-4.646	LBN1042	22 GHz;	<5.9	MED	0.165	1.970	120	-H₂O	SFR	900217
12	16 39 30.4	-14 05 50.6	3.5798	21.0290	G3.580+21.029	L121	22 GHz;	<5.5	MED	0.165	1.830	120	-H₂O	SFR	900211
13	16 50 33.8	-19 07 50.2	1.0150	15.8880	G1.015+15.888	L31	22 GHz;	<6.5	MED	0.165	2.170	120	-H₂O		900218
14	16 57 16.3	-16 09 22	4.4964	16.3532	G4.503+16.342	LI 46	22 GHz;	<6.1	MED	0.165	2.030	120	+H₂O -CH₃OH II	SFR	900211
15	17 03 0.2	-22 13 39.1	0.2311	11.7079	G0.231+11.708	L4	22 GHz;	<7.9	MED	0.165	2.630	120	-H₂O	SFR	900211
16	17 11 48.7	-22 28 35.6	1.2284	9.9047	G1.228+9.905	B60	22 GHz;	<8.0	MED	0.165	2.670	120	-H₂O	SFR	900211
17	17 13 3.9	-30 15 42.7	354.9855	5.1708	G354.985+5.171	B247	22 GHz;	<9.1	MED	0.165	3.030	120	-H₂O		900211
18	17 15 2.2	-20 29 59.8	3.3137	10.4111	G3.314+10.411	B61	22 GHz;	<15.4	MED	0.165	5.130	120	-H₂O		900218
19	17 22 37.4	-27 05 1.5	358.8073	5.2694	G358.807+5.269	L1774	22 GHz;	<9.5	MED	0.165	3.170	120	-H₂O	SFR	900218
20	17 22 36.9	-23 50 34.4	1.5080	7.0844	G1.520+7.085	B68	22 GHz;	<12.5	MED	0.165	4.170	120	-H₂O	SFR	900218
21	17 24 50.6	-23 35 56.7	1.9976	6.7955	G1.998+6.796	B72	22 GHz;	<15.7	MED	0.165	5.230	120	-H₂O	SFR	900218
22	17 25 3.4	-24 12 38.8	1.5119	6.4162	G1.512+6.416	B74	22 GHz;	<12.1	MED	0.165	4.030	120	-H₂O	SFR	900218
23	17 28 40	-25 16 15.3	1.0770	5.1481	G1.077+5.148	B267	22 GHz;	<11.9	MED	0.165	3.970	120	-H₂O	UNK	900218
24	17 39 33.5	-19 36 35.7	7.2332	6.0628	G7.233+6.063	L219	22 GHz;	<6.4	MED	0.165	2.130	120	-H₂O	SFR_MIXED	900211
25	17 46 47.4	-20 16 37.2	7.5482	4.2641	G7.542+4.269	B84	22 GHz;	<6.0	MED	0.165	2.000	120	-H₂O -CH₃OH II	SFR	900212
26	17 53 16.7	-08 25 1.3	18.6632	8.8754	G18.663+8.875	L392	22 GHz;	<5.3	MED	0.165	1.770	120	-H₂O		900211
27	17 55 31.5	-08 15 25.5	19.0790	8.4686	G19.079+8.469	L400	22 GHz;	<5.1	MED	0.165	1.700	120	-H₂O	SFR	900211
28	18 00 34.9	-03 30 36.2	23.9064	9.6477	G23.906+9.648	L468	22 GHz;	<4.4	MED	0.165	1.470	120	-H₂O	SFR	900211
29	18 02 58.1	-27 52 7.9	2.8513	-2.7510	G2.851-2.751	B86	22 GHz;	<10.3	MED	0.165	3.430	120	-H₂O	SFR	900218
30	18 03 4.2	-20 51 0.1	8.9743	0.6836	G8.974+0.684	L262	22 GHz;	<4.8	MED	0.165	1.600	120	-H₂O		900217
31	18 05 04	-28 25 53.8	2.5861	-3.4295	G2.586-3.429	SCH0741	22 GHz;	<11.0	MED	0.165	3.670	120	-H₂O	SFR_MIXED	900211
32	18 05 56	-18 25 13.5	11.4227	1.2874	G11.423+1.287	L307	22 GHz;	<10.8	MED	0.165	3.600	120	-H₂O	SFR_MIXED	900211
33	18 10 24.8	-22 44 23.1	8.1548	-1.7256	G8.155-1.726	L249	22 GHz;	<10.5	MED	0.165	3.500	120	-H₂O	SFR	900211
34	18 14 43.5	+07 04 38.1	35.1226	11.3649	G35.123+11.367	LBN102	22 GHz;	<4.4	MED	0.165	1.470	120	-H₂O	SFR	900211
35	18 15 34.7	-18 11 12.3	12.7316	-0.6052	G12.732-0.605	B92	22 GHz;	<6.1	MED	0.165	2.030	120	-H₂O	SFR	900211
36	18 15 49.3	-03 51 10.6	25.4062	6.1310	G25.406+6.131	L492	22 GHz;	<4.4	MED	0.165	1.470	120	-H₂O		900211
37	18 15 49.2	-03 44 27.6	25.5055	6.1837	G25.506+6.184	L492	22 GHz;	<4.6	MED	0.165	1.530	120	-H₂O	SFR	900211
38	18 19 46.9	-06 05 51.4	23.8765	4.2099	G23.877+4.210	L466	22 GHz;	<5.5	MED	0.165	1.830	120	-H₂O	SFR	900211
39	18 23 32	-20 45 37.7	11.3440	-3.4716	G11.344-3.472	L306	22 GHz;	<9.4	MED	0.165	3.130	120	-H₂O	SFR	900211
40	18 24 18.9	-00 58 52.4	28.9525	5.5811	G28.952+5.581	L539	22 GHz;	<5.5	MED	0.165	1.830	120	-H₂O		900211
41	18 24 57.6	-10 53 0.1	20.2416	0.8397	G20.242+0.840	L414	22 GHz;	<8.4	MED	0.165	2.800	120	-H₂O	SFR	900211
42	18 25 30.3	-10 39 54.7	20.4971	0.8231	G20.497+0.823	B94	22 GHz;	<8.9	MED	0.165	2.970	120	-H₂O	SFR	900211
43	18 30 29	-17 42 53.4	14.8094	-3.5167	G14.809-3.517	B311	22 GHz;	<8.9	MED	0.165	2.970	120	-H₂O	UNK	900218
44	18 32 24.5	-09 10 29.7	22.6063	0.0093	G22.606+0.009	B100	22 GHz;	<9.3	MED	0.165	3.100	120	-H₂O	SFR	900211
45	18 32 52.6	-09 13 49.6	22.6104	-0.1187	G22.610-0.119	B100	22 GHz;	<6.8	MED	0.165	2.270	120	-H₂O	SFR	900218
46	18 33 18.1	-26 01 33.6	7.6600	-7.8660	G7.660-7.866	B98	22 GHz;	<12.4	MED	0.165	4.130	120	-H₂O	SFR	900218
47	18 38 8.9	-13 43 58	19.2018	-3.3334	G19.202-3.333	B102	22 GHz;	<8.6	MED	0.165	2.870	120	-H₂O	SFR_MIXED	900218
48	18 47 19	-04 33 6.2	28.4113	-1.1595	G28.411-1.159	B104	22 GHz;	<6.1	MED	0.165	2.030	120	-H₂O		900218
49	18 52 54.8	+00 00 58.9	33.1147	-0.3208	G33.115-0.321	B114	22 GHz;	<7.4	MED	0.165	2.470	120	-H₂O	UNK	900218
50	18 53 40.3	-07 25 30.1	26.5671	-3.8720	G26.567-3.872	B117	22 GHz;	<7.4	MED	0.165	2.470	120	-H₂O	EVOLVED	900218
51	18 54 51.1	-04 36 03	29.2222	-2.8537	G29.222-2.854	B120	22 GHz;	<11.1	MED	0.165	3.700	120	-H₂O		900211
52	18 59 00	-04 32 30.4	29.7447	-3.7483	G29.745-3.748	B126	22 GHz;	<7.6	MED	0.165	2.530	120	-H₂O		900218
53	19 01 32	-05 27 19.7	29.2139	-4.7245	G29.214-4.724	B127	22 GHz;	<8.7	MED	0.165	2.900	120	-H₂O	SFR	900218
54	19 01 58.1	-05 33 56.9	29.1643	-4.8709	G29.164-4.871	B130	22 GHz;	<9.9	MED	0.165	3.300	120	-H₂O	SFR	900218
55	19 02 5.8	-05 17 51.3	29.4189	-4.7783	G29.419-4.778	B129	22 GHz;	<11.1	MED	0.165	3.700	120	-H₂O	SFR	900218
56	19 02 13.2	+17 44 24.1	49.9722	5.6858	G49.972+5.686	L708	22 GHz;	<6.4	MED	0.165	2.130	120	-H₂O	SFR	900211
57	19 06 12.6	-06 53 27.1	28.4520	-6.4086	G28.452-6.409	B133	22 GHz;	<5.5	MED	0.165	1.830	120	-H₂O	SFR	900217
58	19 13 53.1	+16 27 24.9	50.1014	2.6201	G50.101+2.620	L709	22 GHz;	<6.2	MED	0.165	2.070	120	-H₂O	SFR	900211
59	19 20 31	+11 30 37.1	46.4750	-1.1097	G46.475-1.110	L676	22 GHz;	<8.2	MED	0.165	2.730	120	-H₂O		900203
60	19 20 47.5	+23 29 33.7	57.1007	4.4456	G57.101+4.446	L771	22 GHz;	<6.2	MED	0.165	2.070	120	-H₂O	SFR	900211
61	19 23 20	+12 25 51.7	47.6119	-1.2842	G47.612-1.284	L686	22 GHz;	<4.5	MED	0.165	1.500	120	-H₂O	SFR	900217
62	19 35 15.5	+12 19 47	48.9139	-3.8911	G48.914-3.891	B334	22 GHz;	<5.4	MED	0.165	1.800	120	-H₂O	SFR	900218
63	19 36 35.5	+12 19 39.4	49.0699	-4.1773	G49.079-4.183	B336	22 GHz;	<5.4	MED	0.165	1.800	120	-H₂O	SFR	900218
64	19 36 58.7	+07 34 31.7	44.9320	-6.5483	G44.931-6.559	B335	22 GHz;	<6.5	MED	0.165	2.170	120	+H₂O -CH₃OH I -CH₃OH II	SFR	900218
65	19 42 10.7	+11 22 4.5	48.8949	-5.8384	G48.895-5.838	SCH01080	22 GHz;	<6.0	MED	0.165	2.000	120	-H₂O	SFR	900218
66	19 47 13.4	+18 54 39.6	56.0737	-3.1606	G56.079-3.161	SCH01106	22 GHz;	<8.6	MED	0.165	2.870	120	-H₂O	SFR	900218
67	19 54 40.6	+33 47 23.1	69.7318	2.9854	G69.732+2.985	L832	22 GHz;	<5.0	MED	0.165	1.670	120	-H₂O	SFR	900217
68	19 59 46.9	+24 55 29.3	62.7377	-2.5771	G62.738-2.576	L802	22 GHz;	<7.4	MED	0.165	2.470	120	-H₂O	SFR	900218
69	20 04 00	+26 39 17.3	64.7102	-2.4696	G64.710-2.470	L814	22 GHz;	<6.3	MED	0.165	2.100	120	-H₂O	SFR	900217
70	20 05 47.1	+23 26 23.8	62.2000	-4.5242	G62.215-4.541	L797	22 GHz;	<4.9	MED	0.165	1.630	120	-H₂O -CH₃OH I -OH	EVOLVED	900203
71	20 18 18.9	+63 52 39.5	97.8366	15.3313	G97.838+15.327	LBN444	22 GHz;	<5.2	MED	0.165	1.730	120	-H₂O	SFR	900211
72	20 33 30.6	+64 01 27.8	98.8921	14.0044	G98.892+14.004	L1094	22 GHz;	<4.8	MED	0.165	1.600	120	-H₂O	SFR	900211
73	20 36 17.2	+63 53 15.2	98.9535	13.6755	G98.964+13.672	LI 100	22 GHz;	<4.7	MED	0.165	1.570	120	-H₂O -CH₃OH II	SFR	900211
74	21 17 40.9	+68 18 23	105.1787	13.1630	G105.166+13.156	LI 177	22 GHz;	<4.7	MED	0.165	1.570	120	-H₂O -CH₃OH I	SFR	900211
75	21 37 13.9	+43 21 34.4	89.6592	-6.6187	G89.659-6.619	B158	22 GHz;	<5.1	MED	0.165	1.700	120	-H₂O	SFR	900211
76	22 33 48.4	+58 33 30.5	105.7884	0.3446	G105.788+0.345	LI 192	22 GHz;	<6.4	MED	0.165	2.130	120	-H₂O	SFR	900217
77	23 11 41.9	+66 03 6.9	113.0388	5.1147	G113.039+5.115	L1239	22 GHz;	<5.9	MED	0.165	1.970	120	-H₂O	SFR	900211
78	23 25 12.9	+63 36 29.7	113.5248	2.3224	G113.514+2.328	L1246	22 GHz;	<6.3	MED	0.165	2.100	120	-H₂O -CH₃OH II	SFR	900211
79	23 25 48.8	+74 17 37.2	117.1260	12.3951	G117.124+12.396	L1262	22 GHz;	<4.9	MED	0.165	1.630	120	+H₂O -CH₃OH I -CH₃OH II	SFR	900202
80	00 11 26.1	+58 49 47	117.7646	-3.6401	G117.766-3.639	LkHal98	22 GHz;	<5.5	MED	0.165	1.830	120	+H₂O -CH₃OH I -CH₃OH II -OH	SFR_MIXED	900203
81	04 55 45.7	+30 33 5.9	172.4984	-7.9809	G172.498-7.982	ABAur	22 GHz;	<6.8	MED	0.165	2.270	120	-H₂O -CH₃OH I -CH₃OH II -SiO	SFR_MIXED	900217
82	05 39 30.2	+26 22 26.3	181.4665	-2.5000	G181.467-2.499	RRTau	22 GHz;	<5.7	MED	0.165	1.900	120	-H₂O -CH₃OH I	EVOLVED	900217
83	06 02 0.1	+16 31 3.6	192.6223	-3.0376	G192.623-3.040	HD250550	22 GHz;	<4.6	MED	0.165	1.530	120	+H₂O -CH₃OH I -OH	SFR_MIXED	900202
84	06 07 49.5	+18 39 27.2	191.4339	-0.7805	G191.434-0.780	LkHa208	22 GHz;	<5.5	MED	0.165	1.830	120	+H₂O	EVOLVED	900217
85	07 03 43.2	-11 33 6.1	224.6066	-2.5564	G224.607-2.557	ZCMa	22 GHz;	<5.0	MED	0.165	1.670	120	+H₂O -CH₃OH I -CH₃OH II -OH	SFR_MIXED	900217
86	07 04 25.8	-10 26 56.1	223.7048	-1.8972	G223.706-1.901	HD53367	22 GHz;	<5.1	MED	0.165	1.700	120	-H₂O -CH₃OH I	EVOLVED	900217
87	18 27 40.5	-03 51 21	26.7816	3.5112	G26.782+3.511	MWC297	22 GHz;	<5.1	MED	0.165	1.700	120	-H₂O	SFR	900218
88	20 20 31.2	+41 22 0.5	78.8792	2.7638	G78.871+2.762	BD404124	22 GHz;	<5.2	MED	0.165	1.730	120	+H₂O +CH₃OH I -CH₃OH II -SiO	SFR_MIXED	900218
89	21 52 34.1	+47 13 42.9	94.2488	-5.4359	G94.250-5.436	BD463471	22 GHz;	<10.3	MED	0.165	3.430	120	-H₂O -CH₃OH I -CH₃OH II	SFR_MIXED	900202
90	22 34 43.1	+40 38 59.7	96.7252	-15.1629	G96.725-15.163	LkHa233	22 GHz;	<6.7	MED	0.165	2.230	120	-H₂O		900217
91	23 17 27.5	+60 50 15.9	111.7302	0.0264	G111.730+0.035	MWC1080	22 GHz;	<6.6	MED	0.165	2.200	120	-H₂O -CH₃OH I -CH₃OH II	SFR_MIXED	900217

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 SCA91

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