2012A&A...537A...5W


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.06CEST01:21:06

2012A&A...537A...5W - Astronomy and Astrophysics, volume 537A, 5-5 (2012/1-1)

Polarization properties of OH masers in AGB and post-AGB stars.

WOLAK P., SZYMCZAK M. and GERARD E.

Abstract (from CDS):

Ground-state OH maser emission from late-type stars is usually polarized and remains a powerful probe of the magnetic field structure in the outer regions of circumstellar envelopes if observed with high angular and spectral resolutions. Observations in all four Stokes parameters are quite sparse and this is the most thorough, systematic study published to date. We aim to determine polarization properties of OH masers in an extensive sample of stars that show copious mass loss and search for candidate objects that are well-suited for high angular resolution studies. Full-polarization observations of the OH 1612 and 1667MHz maser transitions were carried out for a sample of 117 AGB and post-AGB stars. Several targets were also observed in the 1665MHz line. A complete set of full-polarization spectra together with the basic polarization parameters are presented. Polarized features occur in more than 75% of the sources in the complete sample and there is no intrinsic difference in the occurrence of polarized emission between the three classes of objects of different infrared characteristics. The highest fractional polarization occurs for the post-AGB+PN and the Mira+SR classes at 1612 and 1667MHz, respectively. Differences in the fractional polarization between the sources at different evolutionary stages appear to be related to depolarization caused by blending. The alignment of the polarization angles at the extreme sides of the shell implies a regular structure of the magnetic field of a strength of 0.3-2.3mG. Polarized OH maser features are widespread in AGB and post-AGB stars. The relationship between the circular and linear fractional polarizations for a representative sample are consistent with the standard models of polarization for the Zeeman splitting higher than the Doppler line width, whereas the polarized features are the σ components.

Abstract Copyright:

Journal keyword(s): stars: AGB and post-AGB - polarization - masers

Simbad objects: 121

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Number of rows : 121

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 IRAS 00170+6542 pA? 00 19 51.2788304007 +65 59 30.361664027           ~ 21 1
2 V* V524 Cas Mi* 00 46 00.1366592792 +69 10 53.636837124           M8III 40 0
3 IRC +10011 OH* 01 06 25.9889735162 +12 35 52.890666456   20.7   18.26 14.01 M8 406 0
4 OH 127.8 -0.0 OH* 01 33 51.21 +62 26 53.2           M9III 175 0
5 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 959 2
6 OH 138.0 +7.2 OH* 03 25 08.406 +65 32 07.06           ~ 85 1
7 OH 141.7 +3.5 Mi* 03 33 30.6184797306 +60 20 08.850237093           ~ 57 0
8 V* IK Tau Mi* 03 53 28.8884898148 +11 24 21.865959095 16.99 17.03 13.39 7.29 3.20 M7-11 589 0
9 NSV 16214 OH* 05 00 24.6068229583 +12 56 06.533965002           ~ 30 0
10 IRC +50137 Mi* 05 11 19.4489549676 +52 52 33.222548186           M10 172 0
11 IRC +60154 OH* 05 19 52.1463197882 +63 15 54.958140641       16.24   M9 61 0
12 NAME Flame Nebula HII 05 41 42.7 -01 54 44           ~ 693 1
13 V* U Ori Mi* 05 55 49.1689920441 +20 10 30.690374867 6.82 6.39 5.40     M6-9.5e 476 0
14 IRC +40156 OH* 06 33 15.7579945892 +40 42 51.036144135           M8 70 0
15 V* GX Mon OH* 06 52 47.0411386021 +08 25 19.131304542   15.40 15.46 10.56   M9 110 0
16 V* Z Pup Mi* 07 32 38.0628465607 -20 39 29.195122135   12.48 7.20     M4e 142 0
17 V* AI CMi pA* 07 35 41.1518203544 +00 14 57.987903123   9.83 8.31     G5Iab 52 0
18 V* R Cnc Mi* 08 16 33.8242753267 +11 43 34.518296107 10.66 10.17 8.64 4.91 1.95 M6.5-9e 278 2
19 V* IW Hya OH* 09 45 15.2271331857 -22 01 45.289428464     16     M8/9 106 0
20 V* R LMi Mi* 09 45 34.2832012840 +34 30 42.836146420   10.96 9.99     M6.5-9e 313 0
21 V* V Ant Mi* 10 21 09.1109881017 -34 47 18.738190950   11.56 10.71     M7IIIe 69 0
22 V* R Crt AB* 11 00 33.8541158313 -18 19 29.574953304   10.33 9.80     M7/8III 202 0
23 V* T Com OH* 12 58 38.9088132357 +23 08 21.232547323   13.29 11.40 11.87   M8/9III:e 54 0
24 V* RT Vir AB* 13 02 37.9836301550 +05 11 08.360733054 10.07 9.07 7.41     M8III 302 0
25 V* V CVn Mi* 13 19 27.7670621532 +45 31 37.650912993 9.55 8.39 6.74     M4-M6e 160 0
26 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 612 0
27 V* RS Vir Mi* 14 27 16.3931666073 +04 40 41.085779853   10.27 7.00     M8 201 0
28 V* S CrB Mi* 15 21 23.9560807971 +31 22 02.567988144 7.51 7.15 5.80     M6.5-8e 337 0
29 V* WX Ser Mi* 15 27 47.0424743675 +19 33 51.669514287           M8.5 199 0
30 RAFGL 1822 OH* 16 06 08.363 -30 49 33.99           ~ 51 0
31 V* U Her Mi* 16 25 47.4723609675 +18 53 32.862370166 8.85 8.23 6.70     M6.5-8+e 522 1
32 IRAS 16342-3814 pA* 16 37 39.8700524769 -38 20 17.440442399           ~ 130 0
33 OH 347.40 +0.40 OH* 17 10 06.926 -39 12 00.13           ~ 7 0
34 IRAS 17087-3230 * 17 12 02.3598701829 -32 34 24.393237974           ~ 3 0
35 NGC 6302 PN 17 13 44.339 -37 06 10.95   7.1 10.10     ~ 762 1
36 V* RW Sco OH* 17 14 51.6797323921 -33 25 54.538032540     11.06 10.07 8.71 M6e 66 0
37 RAFGL 6815S pA* 17 18 19.8316623567 -32 27 21.376880888           G2I 148 0
38 OH 349.36 -0.20 pA* 17 18 29.0 -37 58 02           ~ 21 0
39 OH 349.81 -0.32 OH* 17 20 15.03600 -37 39 33.8436           ~ 30 0
40 OH 350.85 +0.19 OH* 17 21 09.58248 -36 30 50.4468           ~ 14 0
41 OH 0.1 +5.1 OH* 17 26 28.995 -26 04 56.85         17.23 ~ 26 1
42 IRAS 17253-2831 pA* 17 28 33.3 -28 33 28           ~ 9 0
43 OH 353.60 -0.23 OH* 17 30 27.55872 -34 27 44.5536           ~ 22 0
44 IRAS 17371-2747 mul 17 40 20.7 -27 49 11           ~ 15 0
45 IRAS 17375-2759 PN 17 40 38.8631490417 -28 01 03.083801797           ~ 16 0
46 IRAS 17375-3000 PN 17 40 43.3808087335 -30 02 04.564576881           ~ 14 0
47 IRAS 17385-3332 pA* 17 41 52.2828274827 -33 33 40.575162432           ~ 27 0
48 OH 0.9 +1.3 pA* 17 42 33.0790162842 -27 28 25.844214046           ~ 54 0
49 OH 1.2 +1.3 OH* 17 43 38.0349806522 -27 14 44.167430575           ~ 28 0
50 RAFGL 5379 OH* 17 44 24.0038735481 -31 55 35.428622508           ~ 83 0
51 OH 1.3 +1.0 OH* 17 44 58.73040 -27 14 42.8316           ~ 32 0
52 Hen 3-1475 PN 17 45 14.1763468506 -17 56 46.890631888   13.84 12.87     B7e 189 0
53 IRAS 17433-1750 pA* 17 46 15.8274714137 -17 51 45.968535966           ~ 20 0
54 IRAS 17443-2949 PN 17 47 35.28 -29 50 56.2           ~ 30 0
55 OH 1.1 -0.8 OH* 17 51 26.777 -28 25 37.13           O-rich 40 1
56 OH 10.4 +4.6 Mas 17 51 48.9 -17 42 30           ~ 6 0
57 IRAS 17516-2525 pA* 17 54 43.3467071361 -25 26 28.136063518           O-B? 36 1
58 IRAS 17579-3121 pA* 18 01 13.3684155706 -31 21 56.595824497   12.69 11.40 11.02   F4I 16 0
59 GLMP 705 Mas 18 03 38.93 -18 41 08.9           M8: 16 0
60 OH 10.0 -0.1 OH* 18 08 16.384 -20 16 11.56           ~ 30 0
61 OH 12.8 +0.9 pA* 18 10 06.07608 -17 26 34.5480           ~ 40 0
62 OH 11.5 +0.1 OH* 18 10 38.6739104595 -18 52 58.359244335           ~ 35 0
63 RAFGL 2086 Mi* 18 11 27.5593709640 -26 29 32.443647756     19.895   16.42 ~ 32 1
64 HD 335675 pA* 18 11 30.6604895815 +27 05 15.662372766   11.52 10.55     F3Ib 108 0
65 OH 15.4 +1.9 OH* 18 11 34.2 -14 39 59           ~ 21 0
66 IRAS 18105-1935 OH* 18 13 29.922 -19 35 02.92           ~ 15 1
67 OH 15.7 +0.8 OH* 18 16 25.77744 -14 55 13.7388           O-rich 72 0
68 OH 18.52 +1.41 pA* 18 19 35.4933238261 -12 08 08.186087077       14.28 12.14 F7I 31 0
69 OH 12.8 -1.9 Mas 18 20 31.5 -18 44 23           ~ 29 0
70 OH 16.1 -0.3 AB* 18 21 06.4228492667 -15 03 29.637806159           ~ 45 1
71 IRAS 18246-1032 OH* 18 27 24.0 -10 30 24           ~ 16 0
72 OH 20.68 +0.08 AB* 18 28 27.686 -10 50 19.38           ~ 40 1
73 OH 19.2 -1.0 OH* 18 29 28.7281021583 -12 37 53.122540549           ~ 48 0
74 OH 17.7 -2.0 pA* 18 30 30.703 -14 28 57.04           ~ 135 1
75 OH 26.5 +0.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 286 0
76 OH 25.06 -0.35 OH* 18 38 15.461 -07 09 54.37           ~ 39 1
77 OH 27.26 +0.20 OH* 18 40 21.91 -04 57 10.7           ~ 21 0
78 OH 30.1 -0.2 OH* 18 47 09.85344 -02 35 36.0492           ~ 52 0
79 OH 31.0 +0.0 OH* 18 47 41.13768 -01 45 11.4048           O-rich 129 1
80 IRAS 18460-0151 Mas 18 48 42.8 -01 48 40           ~ 43 0
81 OH 32.8 -0.3 OH* 18 52 22.25472 -00 14 11.8428           O-rich 117 0
82 RAFGL 2290 OH* 18 58 30.0947842133 +06 42 57.698061173           O-rich 122 0
83 OH 37.1 -0.8 OH* 19 02 06.286 +03 20 15.99           ~ 65 0
84 IRAS 18596+0315 mul 19 02 06.4 +03 20 15           ~ 59 1
85 OH 39.9 -0.0 OH* 19 04 09.74928 +06 13 16.3956           O-rich 61 0
86 V* R Aql OH* 19 06 22.2510506325 +08 13 48.000441251 8.06 7.69 6.09     M6.5-9e 544 0
87 IRC -20540 OH* 19 08 54.9265603412 -22 14 18.578913052     17 14.58 10.55 M8: 74 0
88 OH 42.3 -0.1 OH* 19 09 08.32632 +08 16 33.6504           O-rich 81 0
89 HD 179821 pA* 19 13 58.6083165753 +00 07 31.934676028 10.81 9.694 8.19     G4_0-Ia 226 0
90 OH 45.5 +0.0 Mas 19 14 24 +11 09.4           ~ 8 0
91 OH 44.8 -2.3 OH* 19 21 36.6418599501 +09 27 56.536908744           ~ 84 0
92 PN Vy 2-2 PN 19 24 22.2390166933 +09 53 56.259102426   14.02 12.65 13.38   ~ 251 0
93 IRC +10420 pA* 19 26 48.0981288433 +11 21 16.756524951   13.98 11.66     F8Ia+e 458 0
94 OH 51.8 -0.1 OH* 19 27 42.03672 +16 37 23.9520           O-rich 38 0
95 OH 55.0 +0.7 OH* 19 30 29.47536 +19 50 41.0352           O-rich 48 0
96 OH 53.6 -0.2 pA* 19 31 25.371 +18 13 10.30           B? 32 0
97 Min 1-92 pA* 19 36 18.9292148675 +29 32 49.838032394 12.13 12.35 11.75 11.54   B0.5IV[e] 236 1
98 V* GY Aql Mi* 19 50 06.3363350098 -07 36 52.425980016   12.54 11.22     M8 104 0
99 OH 65.5 +1.3 OH* 19 51 21.20 +29 13 01.3           O-rich 41 1
100 OH 63.9 -0.2 OH* 19 52 57.8617789021 +27 07 44.620418663           O-rich 32 1
101 OH 65.0 -0.1 OH* 19 55 30.05 +28 10 47.0           ~ 9 0
102 V* RR Aql Mi* 19 57 36.0628075265 -01 53 11.322802573     7.80     M7.5e 283 2
103 OH 65.7 -0.8 OH* 19 59 39.14304 +28 23 07.2996           O-rich 32 0
104 V* Z Cyg Mi* 20 01 27.5084697298 +50 02 32.631014105   11.12 7.10     M5.5-6.5e 157 0
105 OH 66.8 -1.3 OH* 20 04 20.73672 +29 04 06.5064           O-rich 26 0
106 IRC -10529 OH* 20 10 27.8733409252 -06 16 13.757843352         15.49 M: 135 0
107 OH 77.9 +0.2 OH* 20 28 30.677 +39 07 00.93           ~ 21 0
108 OH 63.3 -10.2 OH* 20 28 57.0887609392 +21 15 36.853080658           ~ 33 0
109 OH 75.3 -1.8 OH* 20 29 08.4 +35 45 44           ~ 37 0
110 MSB 38 C* 20 36 07.3863551706 +60 05 26.037276961   13.98 9.86 10.3   C-J4+ 119 0
111 OH 83.4 -0.9 OH* 20 50 58.6196470462 +42 48 11.447926086           O-rich 42 1
112 OH 85.4 +0.1 Mas 20 53 35 +44 57.4           ~ 7 0
113 V* UX Cyg Mi* 20 55 05.5094928935 +30 24 52.033815647   10.99 10.75     M6-6.5e 157 0
114 IRC +40483 OH* 21 27 28.3151477745 +36 41 55.853619664       17.4   M9 30 0
115 V* UU Peg Mi* 21 31 04.1510553195 +11 09 13.698058625   13.28 11.69     M7e 62 0
116 MASTER OT J213253.43+213159.7 * 21 32 53.6461172484 +21 32 00.654135891           ~ 23 0
117 IRAS 21554+6204 OH* 21 56 58.195 +62 18 46.02           ~ 42 0
118 NSV 25875 OH* 22 19 27.48 +59 51 21.7           ~ 134 0
119 V* MP Peg Mi* 22 42 47.1340778780 +11 00 53.908731245   16.8       M7/8 23 0
120 V* KZ Peg Mi* 22 54 11.4035845391 +08 54 07.371571362           M7 70 1
121 V* R Cas Mi* 23 58 24.8700291935 +51 23 19.691977266 6.71 6.63 4.80     M6.5-9e 686 0

    Equat.    Gal    SGal    Ecl

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2021.05.06-01:21:07

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