Search
References
Objects
User-defined list
Download data
Statistics
Papers & Acknowledgement
Citation tool
☰
Display data from paper
Select data type:
H
2
O
LAD81 - VLBI observations of the water vapor masers in Cepheus A, S 252 a, Gl2789, GL 2139, CO 59.79+0.04, W 33 b, and U Orionis.
Interferometry data
Short title
: Lada et al. (1981)
Authors
: Lada, C. J.Blitz, L.Reid, M. J.Moran, J. M.
Journal
: Astrophysical Journal, Vol. 243, p. 769-777 (1981)
Bibcode
:
1981ApJ...243..769L
Target type
: High_mass_SFR,H2O
Abstract
We report VLBI observations with angular resolution of 0.003 arcsec of H
2
O maser sources associated with Cepheus A, S252A, GL 2789/V645 Cyg, GL 2139, CO 59.79+0.04, W33B, and U Ori. The absolute positions of the masers were measured to an accuracy of 0.3 arcsec. Positional coincidences were found between two groups of maser spots and two very compact H II regions in Cep A, and between the maser spots and a stellar-like optical image in GL 2789. In the case of Cep A, we found that the line widths of individual maser components varied as the 1/3 power of the flux densities.
Download as
:
Table (CSV)
View as list of objects
Detection table from Lada et al. (1981)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
RA offset
Dec offset
l
b
Group id
#
Source name
Image
Line
V
peak
V
X
V
Y
Telescope
Beam
Detection
Class
Dist. (parallax)
Date
(J2000)
(J2000)
(mas)
(mas)
(deg.)
(deg.)
H
2
O
(km/s)
(km/s)
(km/s)
(arcsec)
Yes
/
No
(kpc)
1
+22 56 18.1653
+62 01 46.4494
109.870962
2.11336
G109.871+2.114
Cep A
Image
22 GHz
;
-19.76 .. 0.57
HAYS
0.05
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
1979 January 12-15
+22 56 18.0634
+62 01 49.7284
-1529 mas
3280 mas
109.871173
2.114269
1
Cep A
0.57
3.28
3.28
+22 56 18.1718
+62 01 46.3804
97 mas
-68 mas
109.870966
2.113338
2
Cep A
-0.36
-0.068
-0.068
+22 56 18.1654
+62 01 46.4484
0 mas
0 mas
109.870962
2.113360
3
Cep A
-5.29
+22 56 18.0809
+62 01 49.3714
-1267 mas
2923 mas
109.871162
2.114164
4
Cep A
-6.64
2.923
2.923
+22 56 18.081
+62 01 49.4054
-1265 mas
2957 mas
109.871166
2.114173
5
Cep A
-8.42
2.957
2.957
+22 56 18.0781
+62 01 50.1624
-1309 mas
3714 mas
109.871251
2.114365
6
Cep A
-9.65
3.714
3.714
+22 56 18.0778
+62 01 50.1624
-1314 mas
3714 mas
109.871250
2.114365
7
Cep A
-10.36
3.714
3.714
+22 56 18.1684
+62 01 46.4524
46 mas
4 mas
109.870968
2.113359
8
Cep A
-11.37
0.004
0.004
+22 56 18.0783
+62 01 49.7644
-1306 mas
3316 mas
109.871204
2.114265
9
Cep A
-17.69
3.316
3.316
+22 56 18.0784
+62 01 49.7644
-1305 mas
3316 mas
109.871204
2.114265
10
Cep A
-19.76
3.316
3.316
2
+06 08 35.433
+20 39 3.26203
189.778786
0.344942
G189.778+0.345
S252
Image
22 GHz
;
1.5 .. 10.9
HAYS
0.05
+H
2
O
-CH
3
OH I
+CH
3
OH II
+OH
SFR_MIXED
1979 January 12-15
+06 08 35.5091
+20 39 6.2296
1139 mas
2968 mas
189.778209
0.345601
1
S252
10.9
2.968
2.968
+06 08 35.3102
+20 39 9.4516
-1844 mas
6190 mas
189.777050
0.345357
2
S252
9.8
6.19
6.19
+06 08 35.2992
+20 39 9.6016
-2009 mas
6340 mas
189.776993
0.345340
3
S252
8.8
6.34
6.34
+06 08 35.3062
+20 39 7.0616
-1904 mas
3800 mas
189.777623
0.345022
4
S252
8.2
3.8
3.8
+06 08 35.4331
+20 39 3.2616
0 mas
0 mas
189.778786
0.344942
5
S252
1.5
3
+21 39 58.2645
+50 14 21.2167
94.602548
-1.796066
G94.603-1.796
GL2789
Image
22 GHz
;
-50.2 .. -44.5
HAYS
0.05
+H
2
O
-CH
3
OH I
+CH
3
OH II
-OH
-SiO
SFR_MIXED
1979 January 12-15
+21 39 58.2646
+50 14 21.2172
0 mas
0 mas
94.602549
-1.796066
1
GL2789
-50.2
+21 39 58.2646
+50 14 21.2172
0 mas
0 mas
94.602549
-1.796066
2
GL2789
-48.9
+21 39 58.2678
+50 14 21.3992
49 mas
182 mas
94.602589
-1.796034
3
GL2789
-44.5
0.182
0.182
4
+19 43 11.5838
+23 43 54.401
59.781298
0.062283
G59.783+0.064
CO 5979+0.04
Image
22 GHz
;
12 .. 20.6
HAYS
0.05
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
1979 January 12-15
+19 43 11.5796
+23 43 54.3808
-64 mas
-20 mas
59.781286
0.062294
1
CO 5979+0.04
20.6
-0.02
-0.02
+19 43 11.5776
+23 43 54.3608
-94 mas
-40 mas
59.781277
0.062298
2
CO 5979+0.04
18.7
-0.04
-0.04
+19 43 11.5838
+23 43 54.4008
0 mas
0 mas
59.781299
0.062283
3
CO 5979+0.04
12
5
+18 13 54.7504
-18 01 46.466
12.680644
-0.182296
G12.681-0.182
W33B
Image
22 GHz
;
56.1 .. 60.5
HAYS
0.05
+H
2
O
+CH
3
OH I
+CH
3
OH II
+OH
SFR
1979 January 12-15
+18 13 54.7513
-18 01 46.4514
13 mas
15 mas
12.680649
-0.182297
1
W33B
60.5
0.015
0.015
+18 13 54.7505
-18 01 46.4664
0 mas
0 mas
12.680644
-0.182296
2
W33B
58.8
+18 13 54.7513
-18 01 46.5064
13 mas
-40 mas
12.680636
-0.182305
3
W33B
56.9
-0.04
-0.04
+18 13 54.7515
-18 01 46.5084
16 mas
-42 mas
12.680636
-0.182306
4
W33B
56.1
-0.042
-0.042
6
+18 23 17.9104
-13 42 46.9305
17.551038
-0.126197
G17.551-0.126
GL2132
Image
22 GHz
;
32.5 .. 44.3
HAYS
0.05
+H
2
O
+OH
+SiO
EVOLVED
1979 January 12-15
+18 23 17.9098
-13 42 46.9196
-10 mas
10 mas
17.551040
-0.126194
1
GL2132
44.3
0.01
0.01
+18 23 17.9105
-13 42 46.9296
0 mas
0 mas
17.551038
-0.126197
2
GL2132
43.5
+18 23 17.9131
-13 42 46.9896
40 mas
-60 mas
17.551029
-0.126215
3
GL2132
41.8
-0.06
-0.06
+18 23 17.9098
-13 42 46.9396
-10 mas
-10 mas
17.551035
-0.126196
4
GL2132
40.1
-0.01
-0.01
+18 23 17.9105
-13 42 46.9596
0 mas
-30 mas
17.551031
-0.126201
5
GL2132
32.5
-0.03
-0.03
7
+05 55 49.1862
+20 10 30.9746
188.715115
-2.492024
G188.715-2.492
U Ori
Image
22 GHz
;
-41.3 .. -35.8
HAYS
0.05
+H
2
O
+OH
+SiO
EVOLVED
1979 January 12-15
+05 55 49.1861
+20 10 30.9756
0 mas
0 mas
188.715114
-2.492024
1
U Ori
-41.3
+05 55 49.1853
+20 10 30.9776
-11 mas
2 mas
188.715112
-2.492026
2
U Ori
-40
0.002
0.002
+05 55 49.1852
+20 10 30.9826
-13 mas
7 mas
188.715111
-2.492026
3
U Ori
-38.8
0.007
0.007
+05 55 49.1869
+20 10 30.9706
13 mas
-5 mas
188.715117
-2.492022
4
U Ori
-35.8
-0.005
-0.005
Get selected data
X
DSS colored
2MASS colored
WISE colored
SDSS color
IRAC color I1,I2,I4
GLIMPSE 360
PACS color (70-160 um)
SPIRE color (250-500 um)
NVSS (1.4GHz)
ATLASGAL 870 um
ATLASGAL 870 um + Planck
Bolocam 1.1 mm
UKIDSS K
Download UKIDSS K FITS
2MASS K
Download 2MASS K FITS
select MAX(h2o_data_all.ra_hms) as ra_hms,MAX(h2o_data_all.dec_dms) as dec_dms,MAX(h2o_data_all.source_name) as source_name,MAX(h2o_data_all.ra) as ra,MAX(h2o_data_all.dec) as dec,MAX(h2o_data_all.l) as l,MAX(h2o_data_all.b) as b,MAX(h2o_data_all.grp) as grp,MAX(h2o_data_all.other_name) as other_name,MAX(h2o_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(h2o_data_all.line) as line,MAX(h2o_data_all.vrange) as vrange,MAX(h2o_data_all.vpeak) as vpeak,MAX(h2o_data_all.peak) as peak,MAX(h2o_data_all.fwhm) as fwhm,MAX(h2o_data_all.int) as int,MAX(h2o_data_all.rms) as rms,MAX(h2o_data_all.units) as units,MAX(h2o_data_all.units_rms) as units_rms,MAX(h2o_data_all.date_txt) as date_txt,MAX(h2o_data_all.telescope_ref) as telescope_ref,MAX(h2o_data_all.telescope_conf) as telescope_conf,MAX(h2o_data_all.v_step) as v_step,MAX(h2o_data_all.beam) as beam,MAX(h2o_data_all.beam_maj) as beam_maj,MAX(h2o_data_all.beam_min) as beam_min,MAX(h2o_data_all.beam_pa) as beam_pa,MAX(h2o_data_all.ref) as ref,MAX(h2o_data_all.list_ref) as list_ref,MAX(h2o_data_all.ascii) as ascii,MAX(h2o_data_all.url) as url,MAX(h2o_data_all.image) as image,MAX(h2o_data_all.image2) as image2,MAX(h2o_data_all.image3) as image3,MAX(h2o_data_all.descr) as descr,MAX(h2o_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(h2o_data_all.dist) as dist,1 as dist_parallax,MAX(h2o_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON h2o_data_all.line=transitions."Line" WHERE ref ilike 'LAD81' AND detected=true AND hide=false GROUP BY ref
select h2o_data_all.ra_hms,h2o_data_all.dec_dms,h2o_data_all.source_name,h2o_data_all.ra,h2o_data_all.dec,h2o_data_all.l,h2o_data_all.b,h2o_data_all.grp,h2o_data_all.other_name,h2o_data_all.other_desc,h2o_data_all.thermal,h2o_data_all.line,h2o_data_all.vrange,h2o_data_all.vpeak,h2o_data_all.peak,h2o_data_all.fwhm,h2o_data_all.int,h2o_data_all.rms,h2o_data_all.units,h2o_data_all.units_rms,h2o_data_all.date_txt,h2o_data_all.telescope_ref,h2o_data_all.telescope_conf,h2o_data_all.v_step,h2o_data_all.beam,h2o_data_all.beam_maj,h2o_data_all.beam_min,h2o_data_all.beam_pa,h2o_data_all.ref,h2o_data_all.list_ref,h2o_data_all.ascii,h2o_data_all.url,h2o_data_all.image,h2o_data_all.image2,h2o_data_all.image3,h2o_data_all.descr,h2o_data_all.id,h2o_data_all.mjy_flag,h2o_data_all.rms_mjy_flag,h2o_data_all.dist,h2o_data_all.dist_parallax,h2o_data_all.date_txt,line_det,type,simbad_types_cat FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON h2o_data_all.line=transitions."Line" WHERE ref ilike 'LAD81' AND detected=true AND hide=false ORDER BY detected DESC,id
