2006A&A...450..667H

Query : 2006A&A...450..667H

2006A&A...450..667H - Astronomy and Astrophysics, volume 450667-680 (2006/5-1)

Full polarization study of SiO masers at 86 GHz.

HERPIN F., BAUDRY A., THUM C., MORRIS D. and WIESEMEYER H.

Abstract (from CDS):

We study the polarization of the SiO maser emission in a representative sample of evolved stars in order to derive an estimate of the strength of the magnetic field, and thus determine the influence of this magnetic field on evolved stars. We made simultaneous spectroscopic measurements of the 4 Stokes parameters, from which we derived the circular and linear polarization levels. The observations were made with the IF polarimeter installed at the IRAM 30m telescope. A discussion of the existing SiO maser models is developed in the light of our observations. Under the Zeeman splitting hypothesis, we derive an estimate of the strength of the magnetic field. The averaged magnetic field varies between 0 and 20-Gauss, with a mean value of 3.5-Gauss, and follows a 1/r law throughout the circumstellar envelope. As a consequence, the magnetic field may play the role of a shaping, or perhaps collimating, agent of the circumstellar envelopes in evolved objects.

Abstract Copyright: ∼

Journal keyword(s): masers - polarization - surveys - stars: late-type - stars: evolution - stars: magnetic field

Simbad objects: 59

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Number of rows : 59
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* T Cas Mi* 00 23 14.2708079496 +55 47 33.231320160   10.14 8.87     M7-9e 247 0
2 V* S Cas S* 01 19 41.9796588720 +72 36 40.850697240           S3-54-8 132 1
3 V* W And S* 02 17 32.9612209924 +44 18 17.757276489   9.62   7.39   S7-8/1e-M7Se 225 1
4 V* S Per s*r 02 22 51.7113133056 +58 35 11.422774248 13.22 10.55 7.90     M4.5-7Iae 388 0
5 V* RR Per Mi* 02 28 29.4075457320 +51 16 17.281798176       13.09   M6.5e: 84 0
6 V* R Tri Mi* 02 37 02.3403028152 +34 15 51.341675184   8.524 7.306 8.24   M3.5-8e 199 0
7 V* IK Tau OH* 03 53 28.8924743304 +11 24 21.895183368 16.99 14.463 16.171 14.101   M7-11 675 0
8 V* R Tau Mi* 04 28 18.0026579160 +10 09 44.795528028   11.64 7.60     M6.5-9e 143 0
9 V* RX Tau Mi* 04 38 14.5677780288 +08 20 09.290730264     9.10     M7e 99 0
10 V* AU Aur C* 04 54 14.9992708728 +49 54 00.310512168     11.81 9.24   C7,2 77 0
11 V* TX Cam Mi* 05 00 51.1627935408 +56 10 54.041462220       14.02   M9-9.5 365 0
12 V* T Lep Mi* 05 04 50.8451254800 -21 54 16.520551560   11.60 10.59     M6.5e 158 0
13 IRC +50137 OH* 05 11 19.4506093584 +52 52 33.235824324           M10 180 0
14 V* R Aur Mi* 05 17 17.6915798904 +53 35 10.031931312   10.82 10.04 6.12   M6.5-8.5e 240 0
15 V* RU Aur Mi* 05 40 07.8949580712 +37 38 10.677481116       8.19   M9e 109 0
16 V* U Ori Mi* 05 55 49.1707632432 +20 10 30.677904084 6.82 6.39 5.40 6.24   M6-9.5e 500 0
17 V* V Cam Mi* 06 02 32.2682825832 +74 30 27.210065112   11.99 10.98     M7 120 0
18 V* V Mon S* 06 22 43.5821819376 -02 11 43.500924636 9.03 8.26 6.87 6.41   M5-8Se 139 0
19 V* AP Lyn Mi* 06 34 33.3992529912 +60 56 27.812508252   12.51 11.15 11.90   M7+ 121 0
20 V* SY Mon Mi* 06 37 31.3294269216 -01 23 43.141291656   13.82 13.27 9.44   M9 59 0
21 V* U Lyn Mi* 06 40 46.4581408872 +59 52 01.542429300   12.47 11.52 9.72   M7e 105 0
22 V* GX Mon OH* 06 52 47.0423680104 +08 25 19.097958468   15.40 15.46 10.56   M9 126 0
23 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1169 0
24 V* Z Pup Mi* 07 32 38.0640798624 -20 39 29.219695524   12.48 7.20 9.23   M4e 156 0
25 V* S CMi Mi* 07 32 43.0693155312 +08 19 05.197531404     6.60     M7-8e 166 0
26 OH 231.8+04.2 OH* 07 42 16.947 -14 42 50.20           M10III+A 548 0
27 V* R Cnc Mi* 08 16 33.8267330544 +11 43 34.469101992 10.66 10.17 8.64 4.91 1.95 M6.5-9e 306 2
28 V* W Cnc Mi* 09 09 52.6118292000 +25 14 53.794740696   10.86 7.40 7.18   M6.5-9e 138 0
29 V* X Hya Mi* 09 35 30.2667472344 -14 41 28.610073456   10.02 7.20 9.24   M7-8+e 159 0
30 V* R LMi OH* 09 45 34.2840467232 +34 30 42.809054724   9.442 8.443 9.024   M6.5-9e 343 0
31 V* R Leo Mi* 09 47 33.4839808805 +11 25 43.823283729 9.22 8.94 7.53 3.39 0.12 M7-9e 943 1
32 V* W Leo Mi* 10 53 37.4353629739 +13 42 54.340981817   12.03 10.58 11.89   M5.5e 93 0
33 V* R Crt AB* 11 00 33.8525664720 -18 19 29.582708520   10.33 9.80     M7/8III 222 0
34 V* R Com Mi* 12 04 15.1986066432 +18 46 56.767920564   11.14 7.10 12.55   M5-7e 121 0
35 V* R Vir Mi* 12 38 29.9338039680 +06 59 19.028080356 10.26 9.04 7.48 5.62 3.91 M3.5-7e 209 0
36 V* RT Vir AB* 13 02 37.9814644272 +05 11 08.362884984 10.07 9.07 7.41     M8III 336 0
37 V* R Hya Mi* 13 29 42.7801586466 -23 16 52.751628992 7.26 6.58 4.97 2.27 -0.15 M6-9e 511 0
38 V* S Vir Mi* 13 33 00.1101102072 -07 11 41.030844432   10.170 9.391 9.757   M6-7e 187 0
39 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 672 0
40 V* RS Vir Mi* 14 27 16.3912599864 +04 40 41.126332044   10.27 7.00     M8 220 0
41 V* S CrB Mi* 15 21 23.9553294936 +31 22 02.584877304 7.51 7.15 5.80 8.12   M6.5-8e 364 0
42 V* S Ser Mi* 15 21 39.5340937176 +14 18 53.092200960   12.37 11.37     M5e 130 0
43 V* RS Lib Mi* 15 24 19.7909986800 -22 54 39.843703260   10.59 7.00 6.85   M7-8e 129 0
44 V* WX Ser Mi* 15 27 47.0420881992 +19 33 51.671456100       9.36   M8.5 215 0
45 V* S UMi Mi* 15 29 34.5772893648 +78 38 00.297823056   10.32 11.13     M6.5-7.5e 138 0
46 V* R Ser Mi* 15 50 41.7343255200 +15 08 01.089879792   8.49 7.10     M5-8e 237 0
47 V* R UMi AB* 16 29 57.8923408176 +72 16 49.165973148   10.69 9.44     O-rich 88 0
48 V* RR Sco Mi* 16 56 37.8385882488 -30 34 48.211969260 8.46 7.64 6.10     M6+e 160 0
49 V* AH Sco s*r 17 11 17.0194487616 -32 19 30.714035556   10.03 8.10     M5Ia-Iab 145 0
50 NGC 6543 PN 17 58 33.4039587288 +66 37 58.750734000   11.09 11.28     [WC] 1197 2
51 V* VX Sgr s*r 18 08 04.0442790744 -22 13 26.600899044 11.72 9.41 6.52 3.90 2.11 M8.5Ia 622 0
52 IRAS 18055-1433 * 18 08 23.9683791144 -14 32 41.981675604           ~ 4 0
53 IRAS 18158-1527 * 18 18 42.48888 -15 26 22.7616           ~ 5 1
54 IRC -10414 s*r 18 23 17.9055962736 -13 42 47.118241332       11.149   M7I 98 0
55 NGC 6826 PN 19 44 48.1500225888 +50 31 30.249034932   9.779 9.359 10.775   O3f(H) 736 0
56 * chi Cyg S* 19 50 33.9213430345 +32 54 50.575531294 7.02 6.06 4.24 1.81 -0.01 S6-9/1-2e 721 0
57 V* UX Cyg OH* 20 55 05.5117404456 +30 24 52.015482108       10.404   M6-6.5e 171 0
58 V* T Cep Mi* 21 09 31.7834766408 +68 29 27.231070884 9.15 8.82 7.33     M6-9e 391 0
59 V* R Cas Mi* 23 58 24.8682785040 +51 23 19.713029388 6.71 6.63 4.80     M6.5-9e 728 0

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