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OH
UKI84 - Stellar OH masers with polarized features at intermediate velocities
Interferometry data
Short title
: Ukita & Le Squeren (1984)
Authors
: Ukita, N. Le Squeren, A. M.
Journal
: Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 2, Sept. 1984, p. 343-352.
Bibcode
:
1984A&A...138..343U
BiBTeX
Abstract
Peculiar profiles were discovered in EY And, one of five new sources found in an OH maser search. The 1612-MHz emission has a typical, double-peak structure, but the main-line masers show polarized features at the central velocity of the 1612-MHz emission. The line shape of the SiO maser resembles that of the 1665-MHz emission. Maser sources with polarized OH emission at intermediate velocities are discussed in the context of two kinematic models. Expanding envelopes with a smooth velocity field would require some of the polarized OH features to arise in the innermost part of the envelopes. Distortion of a smooth outflow by interaction with the ambient gas cannot explain the peculiar OH emission. It is interpreted as a fluctuation of the velocity field of the expanding envelope. The polarized features in both main-line spectra have the same sense of circular polarization when they appear at nearly the same velocity. This evidence is consistent with the mechanism proposed by Cook and Shklovskii.
Comments:
Velocity resolution: 0.90 km/s
Upper limit for non-detections: 0.1-0.3 Jy (3σ)
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Detection table from Ukita & Le Squeren (1984)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
Frequency
V
low
V
up
V
peak
V
peak(2)
F
peak
F
peak(2)
List
Ref.
(J2000)
(J2000)
(deg.)
(deg.)
(MHz)
(km/s)
(km/s)
(km/s)
(km/s)
(Jy)
(Jy)
1
04 40 30.2
-38 14 10
241.324675
-41.316178
R Cae
1665
3.5
3.5
0.200
ENG15
UKI84
2
04 40 30.2
-38 14 10
241.324675
-41.316178
R Cae
1667
3.5
3.5
0.170
ENG15
UKI84
3
05 46 52.4
+69 58 04
143.442689
20.098994
IRC+70066
1665
13.5
13.5
0.500
ENG15
UKI84
4
05 46 52.4
+69 58 04
143.442689
20.098994
IRC+70066
1667
-18.0
16.0
-18.0
16.0
0.350
0.55
ENG15
UKI84
5
15 11 40.8
-06 00 44
353.823435
42.588553
Y Lib
1665
14.0
14.0
0.250
ENG15
UKI84
6
15 11 40.8
-06 00 44
353.823435
42.588553
Y Lib
1667
14.0
14.0
0.200
ENG15
UKI84
7
22 07 19
+11 53 53
71.926961
-34.2593
IRC+10510
1667
22.5
34.0
22.5
34.0
0.150
0.09
ENG15
UKI84
8
23 45 3.2
+43 55 10
110.484872
-17.34202
EY And
1612
-54.0
-31.0
-54.0
-31.0
0.550
0.8
ENG15
UKI84
9
23 45 3.2
+43 55 10
110.484872
-17.34202
EY And
1665
-42.0
-42.0
0.900
ENG15
UKI84
10
23 45 3.2
+43 55 10
110.484872
-17.34202
EY And
1667
-42.0
-42.0
0.600
ENG15
UKI84
Non-detection table from Ukita & Le Squeren (1984)
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Group name
Different Line detections
IRAS source
IRAS coordinates (RA, Dec)
IRAS source distance (arcsec)
IRAS flux density (F12,F25,F60,F100)
2MASS source
2MASS coordinates (RA, Dec)
2MASS source distance (arcsec)
2MASS magnituted (J,H,K)
GCVS source
GCVS coordinates (RA, Dec)
GCVS source distance (arcsec)
GCVS parameters
WISE source
WISE coordinates (RA, Dec)
WISE source distance (arcsec)
WISE magnitudes (w1, w2, w3, w4)
Akari IRC source
Akari IRC coordinates (RA, Dec)
Akari IRC source distance (arcsec)
Akari IRC fluxes (S09, S18)
Akari FIS source
Akari FIS coordinates (RA, Dec)
Akari FIS source distance (arcsec)
Akari FIS fluxes (S65, S90, S140, S160)
Continuum source
Continuum coordinates (RA, Dec)
Continuum source distance (arcsec)
Continuum parameters
Bolocam GPS
BGPS coordinates (RA, Dec)
BGPS source distance (arcsec)
BGPS parameters
EGO source
EGO coordinates (RA, Dec)
EGO source distance (arcsec)
EGO parameters
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2
O maser detection
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select MAX(oh_data.ra_hms) as ra_hms,MAX(oh_data.dec_dms) as dec_dms,MAX(oh_data.source_name) as source_name,MAX(oh_data.ra) as ra,MAX(oh_data.dec) as dec,MAX(oh_data.l) as l,MAX(oh_data.b) as b,MAX(oh_data.vlow) as vlow,MAX(oh_data.vup) as vup,MAX(oh_data.vpeak) as vpeak,MAX(oh_data.vpeak_e) as vpeak_e,MAX(oh_data.vpeak2) as vpeak2,MAX(oh_data.vpeak2_e) as vpeak2_e,MAX(oh_data.dv) as dv,MAX(oh_data.other_name) as other_name,MAX(oh_data.peak) as peak,MAX(oh_data.peak_e) as peak_e,MAX(oh_data.peak2) as peak2,MAX(oh_data.peak2_e) as peak2_e,MAX(oh_data.int) as int,MAX(oh_data.int_e) as int_e,MAX(oh_data.rms) as rms,MAX(oh_data.date) as date,MAX(oh_data.date2) as date2,MAX(oh_data.telescope_ref) as telescope_ref,MAX(oh_data.units) as units,MAX(oh_data.beam) as beam,MAX(oh_data.ref) as ref,MAX(oh_data.list_ref) as list_ref,MAX(oh_data.ascii) as ascii,MAX(oh_data.image) as image,MAX(oh_data.id) as id,MAX(oh_data.date_txt) as date_txt,MAX(oh_data.freq) as freq FROM oh_data WHERE ref ilike 'UKI84' AND detected=true AND hide=false GROUP BY ref
select oh_data.ra_hms,oh_data.dec_dms,oh_data.source_name,oh_data.ra,oh_data.dec,oh_data.l,oh_data.b,oh_data.vlow,oh_data.vup,oh_data.vpeak,oh_data.vpeak_e,oh_data.vpeak2,oh_data.vpeak2_e,oh_data.dv,oh_data.other_name,oh_data.peak,oh_data.peak_e,oh_data.peak2,oh_data.peak2_e,oh_data.int,oh_data.int_e,oh_data.rms,oh_data.date,oh_data.date2,oh_data.telescope_ref,oh_data.units,oh_data.beam,oh_data.ref,oh_data.list_ref,oh_data.ascii,oh_data.image,oh_data.id,oh_data.date_txt,oh_data.freq FROM oh_data WHERE ref ilike 'UKI84' AND detected=true AND hide=false ORDER BY detected DESC,id
