2001A&A...371.1012S


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.04CEST22:20:39

2001A&A...371.1012S - Astronomy and Astrophysics, volume 371, 1012-1017 (2001/6-1)

Magnetic field structure in the outer OH maser envelope of VX Sagittarii.

SZYMCZAK M., COHEN R.J. and RICHARDS A.M.S.

Abstract (from CDS):

The OH 1612MHz maser transition from the supergiant star VX Sgr has been imaged in all Stokes parameters using MERLIN. Numerous elliptically polarised components are distributed in a roughly symmetric envelope of a size similar to that measured in total maser intensity. The polarisation vectors are generally tangential to the circumstellar envelope, indicating a globally ordered magnetic field at the distance of about 1400au from the supergiant. It is suggested that a predominance of projected radial magnetic lines and a displacement between the red- and blue-shifted parts of the envelope can be explained with a dipole field tilted at 20-30° to the line of sight.

Abstract Copyright:

Journal keyword(s): masers - polarisation - stars: magnetic fields - stars: circumstellar matter - stars: supergiants - stars: individual: VX Sgr

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3551 3
2 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3733 1
3 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11605 0
4 V* VX Sgr s*r 18 08 04.0431479808 -22 13 26.629744195 11.72 9.41 6.52 3.90 2.11 M8.5Ia 546 0
5 [DLW84] G35.2N HII 18 58 13.036 +01 40 36.00           ~ 91 0
6 IRC +10420 pA* 19 26 48.0981288433 +11 21 16.756524951   13.98 11.66     F8Ia+e 453 0

    Equat.    Gal    SGal    Ecl

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2020.08.04-22:20:39

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